CN107317620A - Terminal and method that applied satellite antenna is communicated - Google Patents
Terminal and method that applied satellite antenna is communicated Download PDFInfo
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- CN107317620A CN107317620A CN201710511174.8A CN201710511174A CN107317620A CN 107317620 A CN107317620 A CN 107317620A CN 201710511174 A CN201710511174 A CN 201710511174A CN 107317620 A CN107317620 A CN 107317620A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
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Abstract
The invention provides the terminal and method that a kind of applied satellite antenna is communicated, it is related to Beidou communication technical field, the terminal is provided with least two satellite antenna communication modules, each satellite antenna communication module is connected with Big Dipper baseband chip；Each satellite antenna communication module is used to receive frequency signal, and processing output frequency digital medium-frequency signal is carried out to frequency signal；Big Dipper baseband chip is used for the frequency digital medium-frequency signal for receiving each satellite antenna communication module transmission, carrier-to-noise ratio is calculated according to frequency digital medium-frequency signal, carrier-to-noise ratio is compared, communicated according to the satellite antenna communication module that comparison result selects carrier-to-noise ratio high.Terminal and method that the applied satellite antenna that the present invention is provided is communicated, can be when the direction of terminal changes, the strong satellite antenna communication module of selection satellite-signal is communicated, help to reduce influence of the change to reception and the transmitting of RDSS signals of terminal direction, to ensure the communication success rate of terminal.
Description
Technical field
The present invention relates to Beidou communication technical field, a kind of communicated more particularly, to applied satellite antenna terminal and
Method.
Background technology
Dipper system passes through RDSS (Radio Determination Satellite Service, satellite radio detection
Business) positioning and the function of communicating can be achieved.With the development of triones navigation system, the application of Big Dipper RDSS communications is more and more wider
It is general, for example, the field such as oceanographic buoy and fishery, ocean scientific investigation, remote environment-monitoring early warning, navigation emergency communication and monitoring.
For China domestic user, RDSS satellite is supported to be respectively positioned on the orientation towards south.Assuming that user terminal
RDSS antennas are soaring by normal normal direction, when the direction change of user terminal, for example, towards the north, or other deviate north
Struggle against direction where satellite when, will influence reception and transmitting of the user terminal to RDSS signals, so influence RDSS communication into
Power.
Direction for above-mentioned user terminal changes, the problem of influence RDSS communicates, and effective solve not yet is proposed at present
Scheme.
The content of the invention
In view of this, it is an object of the invention to provide the terminal and method that a kind of applied satellite antenna is communicated, with
Alleviate because the satellite antenna direction of terminal changes and influences the technical problem of reception and the transmitting of RDSS signals.
In a first aspect, the embodiments of the invention provide the terminal that a kind of applied satellite antenna is communicated, the terminal is installed
Have a Big Dipper baseband chip and at least two satellite antenna communication modules, each satellite antenna communication module with Big Dipper baseband chip
Connection；Each satellite antenna communication module is used to receive frequency signal, and frequency signal is handled, frequency digital intermediate frequency is exported
Signal, and frequency digital medium-frequency signal is transmitted to Big Dipper baseband chip；Big Dipper baseband chip is used to receive each satellite antenna
The frequency digital medium-frequency signal of communication module transmission, each satellite antenna communication module is calculated according to frequency digital medium-frequency signal
Carrier-to-noise ratio, the carrier-to-noise ratio of each satellite antenna communication module is compared, and the high satellite of carrier-to-noise ratio is selected according to comparison result
Antenna communication module is communicated.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, on
Stating satellite antenna communication module includes：Antenna, power splitter and radio frequency chip；The antenna is used for the frequency letter for receiving big-dipper satellite
Number；Power splitter is used to frequency signal work(being divided into B1 frequencies signal and S frequency signals；And B1 frequency signals are delivered to radio frequency core
Piece；Radio frequency chip is used for according to B1 frequency signal output B1 frequency digital medium-frequency signals, and B1 frequencies digital medium-frequency signal is passed
Transport to Big Dipper baseband chip.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide second of first aspect
Possible embodiment, wherein, above-mentioned satellite antenna communication module also includes wave filter；The wave filter is filtered including B1 frequency sound table
Ripple device and S frequency SAW filters；B1 frequencies SAW filter and S frequency SAW filters are separately positioned on the output of power splitter
On path, the B1 frequencies signal and S frequency signals exported to power splitter is filtered processing.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide the third of first aspect
Possible embodiment, wherein, above-mentioned terminal also include RDSS radio frequency chips, the RDSS radio frequency chips respectively with Big Dipper base band core
Piece and the connection of each satellite antenna communication module；RDSS radio frequency chips are used to receive S frequency point informations, produce in S frequencies numeral
Frequency signal, and S frequency digital medium-frequency signals are transmitted to Big Dipper baseband chip；Big Dipper baseband chip is additionally operable to receive S frequency numbers
Word intermediate-freuqncy signal, modulated signal is produced according to message communication information corresponding with S frequency digital medium-frequency signals；And by modulated signal
It is back to RDSS radio frequency chips；RDSS radio frequency chips are additionally operable to be modulated modulated signal, produce L frequency check-in signals, and
L frequencies check-in signal is launched by the satellite antenna communication module currently selected.
With reference to the third possible embodiment of first aspect, the embodiments of the invention provide the 4th of first aspect kind
Possible embodiment, wherein, above-mentioned terminal is additionally provided with power amplifier, and the power amplifier is arranged on RDSS radio frequency chips
On the path of antenna；Big Dipper baseband chip is additionally operable to generate baseband signal, controls power amplifier, to believe L frequencies inbound
Number it is amplified processing.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 5th of first aspect kind, wherein, on
Stating terminal also includes RF switch, and RF switch includes passing RF switch down and uploads RF switch；Each RF switch difference
On the path for being arranged on each satellite antenna communication module and Big Dipper baseband chip；Big Dipper baseband chip is additionally operable to according to comparison knot
Fruit, which is set, enables signal；The break-make that signal is used to control each RF switch is enabled, to gate the upper of satellite antenna communication module
Pass channel and under pass channel.
Second aspect, the embodiment of the present invention additionally provides a kind of method that applied satellite antenna is communicated, and this method should
For the Big Dipper baseband chip in the terminal described in first aspect, including：Pass through each satellite antenna communication module point of terminal
Huo Qu not frequency digital medium-frequency signal；The carrier-to-noise ratio of each satellite antenna communication module is calculated according to frequency digital medium-frequency signal；
Carrier-to-noise ratio is compared；According to comparison result, choose the high satellite antenna communication module of carrier-to-noise ratio and carry out Beidou satellite communication.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the first of second aspect, wherein, on
Stating terminal also includes multiple RF switches；Each RF switch is separately positioned on each satellite antenna communication module and Big Dipper base band
On the path of chip；It is above-mentioned according to comparison result, choose the high satellite antenna communication module of carrier-to-noise ratio and carry out Beidou satellite communication
Including：Set according to comparison result and enable signal；Signal will be enabled to send to RF switch, to control satellite antenna communication module
The break-make of corresponding RF switch, gates corresponding satellite antenna communication module and carries out Beidou satellite communication.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of second of second aspect, wherein, on
Stating method also includes：Quantity previously according to satellite antenna communication module carries out multifrequency point setting, to obtain multiple satellite antennas
The frequency digital medium-frequency signal of communication module.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the third of second aspect, wherein, on
The carrier-to-noise ratio that each satellite antenna communication module is calculated according to frequency digital medium-frequency signal is stated, is specifically included：According to pre-setting
Renewal frequency obtain frequency digital medium-frequency signal, each satellite antenna communication module is calculated according to frequency digital medium-frequency signal
Carrier-to-noise ratio.
The embodiment of the present invention brings following beneficial effect：
Terminal and method that applied satellite antenna provided in an embodiment of the present invention is communicated, by installing many in terminal
Individual satellite antenna communication module, and multiple satellite antenna communication modules are connected with Big Dipper baseband chip, it can be defended by each
Star antenna communication module receives frequency signal, and exports frequency digital medium-frequency signal to Big Dipper baseband chip, makes Big Dipper base band core
Piece calculates the carrier-to-noise ratio of each satellite antenna communication module according to frequency digital medium-frequency signal, and carries out the comparison of carrier-to-noise ratio, selects
The high satellite antenna communication module of carrier-to-noise ratio is selected to be communicated, can be when the direction of terminal change, selection satellite-signal is strong
Satellite antenna communication module is communicated, and reception and hair of the change of terminal direction to RDSS signals are avoided to a certain extent
The influence penetrated, helps to ensure the communication success rate of terminal.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those skilled in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the terminal that a kind of applied satellite antenna provided in an embodiment of the present invention is communicated；
Fig. 2 is a kind of structural representation of satellite antenna communication module provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of Big Dipper baseband chip provided in an embodiment of the present invention；
Fig. 4 is a kind of connection diagram of RDSS radio frequency chips and RF switch provided in an embodiment of the present invention；
Fig. 5 is the communication connection signal for the terminal that a kind of applied satellite antenna provided in an embodiment of the present invention is communicated
Figure；
Fig. 6 is the flow chart for the method that a kind of applied satellite antenna provided in an embodiment of the present invention is communicated.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those skilled in the art institute under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of protection of the invention.
At present, for China user, RDSS satellite is supported to be respectively positioned on the orientation towards south, when user passes through terminal profit
When being communicated with satellite antenna, if the direction towards the north or terminal is unstable, connecing for RDSS signals will be influenceed
Receive and launch, cause the success rate reduction communicated using satellite antenna.Based on this, one kind provided in an embodiment of the present invention should
The terminal and method communicated with satellite antenna, to improve the success rate communicated using satellite antenna.
For ease of understanding the present embodiment, a kind of applied satellite antenna disclosed in the embodiment of the present invention is entered first
The terminal of row communication describes in detail.
Embodiment one：
The terminal that a kind of applied satellite antenna provided in an embodiment of the present invention is communicated be provided with Big Dipper baseband chip and
At least two satellite antenna communication modules, each satellite antenna communication module is connected with Big Dipper baseband chip；Fig. 1 shows this
The structural representation for the terminal that a kind of applied satellite antenna that inventive embodiments are provided is communicated, for convenience of description, Fig. 1 institutes
The terminal shown contains two satellite antenna communication modules 20, in addition to Big Dipper baseband chip 10.
When implementing, each satellite antenna communication module 20 is used to receive frequency signal, and frequency signal is handled,
Frequency digital medium-frequency signal is exported, and frequency digital medium-frequency signal is transmitted to Big Dipper baseband chip 10；
Big Dipper baseband chip 10 is used for the frequency digital medium-frequency signal for receiving each satellite antenna communication module transmission, according to
Frequency digital medium-frequency signal calculates the carrier-to-noise ratio of each satellite antenna communication module, and the load of each satellite antenna communication module is made an uproar
Than being compared, communicated according to the satellite antenna communication module that comparison result selects carrier-to-noise ratio high.
It should be appreciated that Fig. 1 is only the structural representation of the terminal described in the embodiment of the present invention, rather than unique structure
Figure, in other embodiments, the quantity of above-mentioned satellite antenna communication module can also have other quantity, specifically with actual use
Situation is defined, and the embodiment of the present invention is not limited to this.
The terminal that applied satellite antenna provided in an embodiment of the present invention is communicated, by installing multiple satellites in terminal
Antenna communication module, and multiple satellite antenna communication modules are connected with Big Dipper baseband chip, each satellite antenna can be passed through
Communication module receive frequency signal, and to Big Dipper baseband chip export frequency digital medium-frequency signal, make Big Dipper baseband chip according to
Frequency digital medium-frequency signal calculates the carrier-to-noise ratio of each satellite antenna communication module, and carries out the comparison of carrier-to-noise ratio, and selection load is made an uproar
Communicated than high satellite antenna communication module, can be when the direction of terminal change, selection satellite-signal strong satellite day
Line communication module is communicated, and the shadow of the change of terminal direction to reception and the transmitting of RDSS signals is avoided to a certain extent
Ring, help to ensure the communication success rate of terminal.
Embodiment two：
In actual use, the quantity for the satellite antenna communication module that above-mentioned terminal is installed is preferably two, the present embodiment
Illustrated exemplified by the terminal of two satellite antenna communication modules is installed.
Preferably, above-mentioned two satellite antenna communication module is symmetrical arranged in the side that above-mentioned terminal receives frequency signal,
For example, being symmetrical set.
Specifically, above-mentioned satellite antenna communication module includes：Antenna, power splitter and radio frequency chip；Fig. 2 shows that one kind is defended
The structural representation of star antenna communication module, equally, is illustrated by taking two satellite antenna communication modules as an example, including antenna
201a and antenna 201b, power splitter 202a and power splitter 202b, radio frequency chip 203a and radio frequency chip 203b, further, antenna
201a and antenna 201b is used for the frequency signal for receiving big-dipper satellite；Power splitter 202a and power splitter 202b is used for frequency signal
Work(is divided into B1 frequencies signal and S frequency signals；And B1 frequencies signal is delivered to radio frequency chip 203a and radio frequency chip respectively
203b；Radio frequency chip 203a and radio frequency chip 203b is used for according to B1 frequency signal output B1 frequency digital medium-frequency signals, and will
B1 frequency digital medium-frequency signals are transmitted to Big Dipper baseband chip.
Specifically, the antenna 201a and antenna 201b shown in Fig. 2 are preferably RDSS/RNSS (Radio Navigation
Satellite System, radionavigation-satellite service) dual-mode antenna, further, power splitter 202a and work(shown in Fig. 2
It is one-to-two power splitter to divide device 202b, in actual use, and above-mentioned frequency signal generally comprises B1 frequencies signal and S frequencies letter
Number, i.e. B1/S frequency signals in Fig. 2, can be by B1 frequencies signal and S frequencies signal point by frequency signal by power splitter
Open, and then B1 frequency signals is inputted to radio frequency chip, to produce the letters of the B1_IF in B1 frequency digital medium-frequency signals, i.e. Fig. 2
Number.
Preferably, above-mentioned satellite antenna communication module also includes wave filter；The wave filter includes B1 frequency SAW filters
With S frequency SAW filters；B1 frequency SAW filter 204a and 204b as shown in Figure 2, and S frequency SAW filters
205a and 205b.B1 frequencies SAW filter and S frequency SAW filters are separately positioned on the output channel of power splitter, to work(
The B1 frequencies signal and S frequency signals of device output is divided to be filtered processing.
Based on the structural representation of the satellite antenna communication module shown in Fig. 2, present invention also offers a kind of Big Dipper base band
The structural representation of chip, as shown in figure 3, corresponding to two satellite antenna communication modules in Fig. 2, the Big Dipper base shown in Fig. 3
Microarray strip 10 includes two carrier-to-noise ratios computing unit 101a and 101b, in addition to processor, wherein, the function of processor passes through
ARM (Advanced RISC Machines, processor) core 102 realizes that processor is additionally provided with carrier-to-noise ratio comparing unit 103,
Two-way B1_IF signals in the B1 frequency digital medium-frequency signals of two satellite antenna communication module output, i.e. Fig. 3 are transmitted separately to
The carrier-to-noise ratio computing unit of Big Dipper baseband chip 10 is made an uproar load with calculating each corresponding carrier-to-noise ratio of satellite antenna communication module
Than transmit to carrier-to-noise ratio comparing unit 103 be compared after output enable signal RF_EN, it is high by enabling signal gating carrier-to-noise ratio
Satellite antenna communication module communicated.
When implementing, above-mentioned terminal also include RDSS radio frequency chips, the RDSS radio frequency chips respectively with Big Dipper base band core
Piece and the connection of each satellite antenna communication module, for receiving S frequency point informations, produce S frequency digital medium-frequency signals, and by S
Frequency digital medium-frequency signal is transmitted to Big Dipper baseband chip；Big Dipper baseband chip is additionally operable to receive S frequency digital medium-frequency signals, root
Modulated signal is produced according to message communication information corresponding with S frequency digital medium-frequency signals；And modulated signal is back to RDSS penetrated
Frequency chip；RDSS radio frequency chips are additionally operable to be modulated modulated signal, produce L frequency check-in signals, and L frequencies inbound is believed
Number launched by the satellite antenna communication module currently selected.
Further, above-mentioned terminal also includes RF switch, and RF switch includes passing RF switch down and uploads RF switch；
Each RF switch is arranged on the path of satellite antenna communication module and Big Dipper baseband chip；Big Dipper baseband chip is additionally operable to root
Set according to comparison result and enable signal；According to the break-make for enabling each RF switch of signal control, to gate satellite antenna communication
The upload channel of module and under pass channel.
Fig. 4 shows the connection diagram of a kind of RDSS radio frequency chips and RF switch, as shown in figure 4, RDSS radio frequency cores
Piece is directly connected to Big Dipper baseband chip, and RF switch is arranged on each satellite antenna communication module and is connected with Big Dipper baseband chip
Path on, meanwhile, RF switch is also connected with RDSS radio frequency chips, when implementing, the carrier-to-noise ratio ratio of Big Dipper baseband chip 10
Unit 103 is compared after carrier-to-noise ratio, is configured according to comparison result to enabling signal, for example, the satellite where antenna 201a
The carrier-to-noise ratio of antenna communication module be higher than antenna 201b where satellite antenna communication module carrier-to-noise ratio when, the enable signal
RF_EN is set to 1, is otherwise provided as 0, wherein, the enable signal RF_EN is exported by the enable port GPIO shown in Fig. 3.
Illustrated so that the enable signal is 1 as an example, the output of Big Dipper baseband chip 10 enables signal RF_EN=1, i.e. antenna
The carrier-to-noise ratio of satellite antenna communication module where 201a be higher than antenna 201b where satellite antenna communication module carrier-to-noise ratio,
First control RF switch 205a gating, now enables signal RF_EN=1, RF switch 205a gating antennas 201a S frequencies
Signal, S frequencies signal produces S frequency digital medium-frequency signal S_IF, Big Dipper baseband chip after the processing of RDSS radio frequency chips 30
10 reception S frequency digital medium-frequency signals are handled and produce modulated signal BPSK according to the message communication information to be sent,
BPSK modulated signals produce L frequency check-in signals after being modulated through RDSS radio frequency chips 30.Due to enabling signal RF_EN=1, this
When, RF switch 205b gating antennas 201a carries out the transmitting of L frequency check-in signals.
Preferably, above-mentioned terminal is additionally provided with power amplifier (abbreviation power amplifier), power amplifier 206 as shown in Figure 4, the power
Amplifier is arranged on the path of RDSS radio frequency chips 30 and antenna；Big Dipper baseband chip 10 is additionally operable to generate baseband signal, example
Such as, the baseband signal PA_EN shown in Fig. 3 and Fig. 4, the power amplifier is controlled by baseband signal PA_EN, with to L frequencies
Check-in signal is amplified processing.Wherein, the power amplifier 206 shown in Fig. 4 is arranged on before RF switch 205b, i.e. L frequencies enter
Signal of standing is delivered to before RF switch 205b, passes through power amplifier amplification, therefore, and RF switch 205b now is needed
From high-power RF switch.Without loss of generality, RF switch 205b can also use Common radio frequency to switch, now, work(
Putting 206 can be placed in after RF switch 205b.
The terminal that applied satellite antenna provided in an embodiment of the present invention is communicated, by installing multiple satellites in terminal
Antenna communication module, and multiple satellite antenna communication modules are connected with Big Dipper baseband chip, each satellite antenna can be passed through
Communication module receive frequency signal, and to Big Dipper baseband chip export frequency digital medium-frequency signal, make Big Dipper baseband chip according to
Frequency digital medium-frequency signal calculates the carrier-to-noise ratio of each satellite antenna communication module, and carries out the comparison of carrier-to-noise ratio, and selection load is made an uproar
Communicated than high satellite antenna communication module, can be when the direction of terminal change, selection satellite-signal strong satellite day
Line communication module is communicated, and the shadow of the change of terminal direction to reception and the transmitting of RDSS signals is avoided to a certain extent
Ring, help to ensure the communication success rate of terminal.
Embodiment three：
On the basis of above-described embodiment one and embodiment two, the embodiment of the present invention additionally provides a kind of applied satellite antenna
The communication connection schematic diagram of the terminal communicated, as shown in Figure 5.
Generally, the B1 frequencies signal of big-dipper satellite and B2 frequencies signal are civil signal frequency range, in actual use, make more
Communicated with B1 frequency signals, therefore, the device of correspondence B1 frequency signals is commonplace, and price is also relatively cheap, therefore, figure
Power splitter 202a and 202b shown in 5, radio frequency chip 203a and 203b, and the grade device of Big Dipper baseband chip 10, can be selected
Select the device suitable for processing B1 frequency signals.
Based on the communication connection schematic diagram shown in Fig. 5, led to the embodiments of the invention provide a kind of applied satellite antenna
The method of letter, this method shows one applied to the Big Dipper baseband chip in the terminal described in embodiment one and embodiment two, Fig. 6
The flow chart for the method that applied satellite antenna is communicated is planted, this method is provided with two satellite antennas communication moulds with above-mentioned terminal
Illustrate, comprise the following steps exemplified by block：
Step S602, frequency digital medium-frequency signal is obtained by each satellite antenna communication module of terminal respectively；Such as Fig. 5
Shown frequency digital medium-frequency signal B1_IF.
When implementing, antenna 201a and 201b receive B1/S signals, pass through 1 point of 2 power splitter 202a and 202b work(respectively
Respectively select 1 road signal by B1 frequency SAW filter 204a and 204b after point, export B1 frequency radiofrequency signals, 2 road B1 frequencies are penetrated
Frequency signal enters radio frequency chip 203a and 203b and produces 2 road frequency digital medium-frequency signal B1_IF respectively.
Specifically, frequency digital medium-frequency signal B1_IF acquisition process can also be with reference to described in above-described embodiment two
Fig. 2 content, the present embodiment is not being repeated this.
Step S604, the carrier-to-noise ratio of each satellite antenna communication module is calculated according to frequency digital medium-frequency signal；
Step S606, carrier-to-noise ratio is compared；
Specifically, the calculating of the carrier-to-noise ratio and comparison process are carried out in Big Dipper baseband chip 10.
Step S608, according to comparison result, chooses the high satellite antenna communication module of carrier-to-noise ratio and carries out Beidou satellite communication.
In actual use, above-mentioned terminal also includes multiple RF switches；Each RF switch is separately positioned on each defend
On the path of star antenna communication module and Big Dipper baseband chip；Based on this, the satellite antenna communication mould described in above-mentioned steps S608
The selection process of block includes：(1) set according to comparison result and enable signal；(2) signal will be enabled to send to RF switch, control
The break-make of the corresponding RF switch of satellite antenna communication module, big-dipper satellite is carried out to gate corresponding satellite antenna communication module
Communication.
Specifically, illustrated by taking the communication connection schematic diagram shown in Fig. 5 as an example, above-mentioned Big Dipper baseband chip 10 according to than
Signal RF_EN is enabled to result output, RF switch 205a is first controlled, the RF switch 205a gating branch roads 1 when RF_EN is 1
(branch road where antenna 201a) S frequency signals, when RF_EN is 0, RF switch 205a gatings branch road 2 (is propped up where antenna 201b
Road) S frequency signals；S frequencies radiofrequency signal produces S frequency digital medium-frequency signals S_IF, S frequency after being handled by RDSS radio frequency chips
Point digital medium-frequency signal, which enters after Big Dipper baseband chip 10 is handled, produces BPSK modulated signals, and bpsk signal passes through RDSS radio frequency chips
L frequency check-in signals are produced after 30 modulation, meanwhile, Big Dipper baseband chip 10 controls power by baseband signal PA_EN signals again
Amplifier (power amplifier 206) is amplified processing to L frequency check-in signals；Continue to control RF switch 205b with RF_EN signals, when
RF switch 205b gatings branch road 1 (branch road where antenna 201a) transmitting L frequency check-in signals when RF_EN is 1, when RF_EN is 0
When RF switch 205b gating branch road 2 (branch road where antenna 201b) transmitting L frequency check-in signals.
Wherein, the selection process of above-mentioned satellite antenna communication module can also be with reference to Fig. 4's described in above-described embodiment two
Content, the present embodiment is not being repeated this.
The method that applied satellite antenna provided in an embodiment of the present invention is communicated, by installing multiple satellites in terminal
Antenna communication module, and multiple satellite antenna communication modules are connected with Big Dipper baseband chip, each satellite antenna can be passed through
Communication module receive frequency signal, and to Big Dipper baseband chip export frequency digital medium-frequency signal, make Big Dipper baseband chip according to
Frequency digital medium-frequency signal calculates the carrier-to-noise ratio of each satellite antenna communication module, and carries out the comparison of carrier-to-noise ratio, and selection load is made an uproar
Communicated than high satellite antenna communication module, can be when the direction of terminal change, selection satellite-signal strong satellite day
Line communication module is communicated, and the shadow of the change of terminal direction to reception and the transmitting of RDSS signals is avoided to a certain extent
Ring, help to ensure the communication success rate of terminal.
Preferably, the above method also includes：Quantity previously according to satellite antenna communication module carries out multifrequency point setting, with
Obtain the frequency digital medium-frequency signal of multiple satellite antenna communication modules.The equal flexibly configurable of existing country's Big Dipper baseband chip is multiple
RNSS frequencies, specific facilities can be configured according to actual use situation, and the embodiment of the present invention is to this without limit
System.
Further, the above-mentioned carrier-to-noise ratio that each satellite antenna communication module is calculated according to frequency digital medium-frequency signal, specifically
Also include：Frequency digital medium-frequency signal is obtained according to the renewal frequency pre-set, calculates every according to frequency digital medium-frequency signal
The carrier-to-noise ratio of individual satellite antenna communication module, and the carrier-to-noise ratio is calculated according to above-mentioned renewal frequency, to update current selection
Satellite antenna communication module.
In actual use, because base band loop renewal frequency is generally 1ms, therefore, above-mentioned renewal frequency can be set
Into 1000Hz, with suitable for the RDSS buoys communication under high sea situation high-frequency surge environment, the aviation under lofty stance rate of change
The applications such as RDSS communications, for example, the terminal that above-mentioned applied satellite antenna can be communicated is arranged on aircraft or submarine
Etc. in equipment, to realize that applied satellite antenna is communicated under above-mentioned high sea situation high-frequency surge environment, it is ensured that communication into
Power.
The method that applied satellite antenna provided in an embodiment of the present invention is communicated, the application provided with above-described embodiment is defended
The terminal that star antenna is communicated has identical technical characteristic, so can also solve identical technical problem, reaches identical
Technique effect.
The computer program production of method and terminal that the applied satellite antenna that the embodiment of the present invention is provided is communicated
Product, including the computer-readable recording medium of program code is stored, the instruction that described program code includes can be used for before performing
Method described in the embodiment of the method for face, implements and can be found in previous embodiment, will not be repeated here.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description
With the specific work process of device, the corresponding process in preceding method embodiment is may be referred to, be will not be repeated here.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.In addition,
Term " first " in the present invention, " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relatively heavy
The property wanted.
Finally it should be noted that：Above example, is only the embodiment of the present invention, the skill to illustrate the present invention
Art scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although entering with reference to the foregoing embodiments to the present invention
Go detailed description, it should be understood by those skilled in the art that：Any one skilled in the art takes off in the present invention
In the technical scope of dew, it can still modify to the technical scheme described in previous embodiment or can readily occur in change
Change, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make relevant art
Scheme essence depart from technical scheme of the embodiment of the present invention spirit and scope, should all cover protection scope of the present invention it
It is interior.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. the terminal that a kind of applied satellite antenna is communicated, it is characterised in that the terminal be provided with Big Dipper baseband chip and
At least two satellite antenna communication modules, each satellite antenna communication module is connected with the Big Dipper baseband chip；
Each satellite antenna communication module is used to receive frequency signal, and the frequency signal is handled, and exports frequency
Digital medium-frequency signal, and the frequency digital medium-frequency signal is transmitted to the Big Dipper baseband chip；
The Big Dipper baseband chip is used for the frequency digital intermediate frequency letter for receiving each satellite antenna communication module transmission
Number, the carrier-to-noise ratio of each satellite antenna communication module is calculated according to the frequency digital medium-frequency signal, described is defended each
The carrier-to-noise ratio of star antenna communication module is compared, and selects the high satellite antenna of the carrier-to-noise ratio to communicate according to comparison result
Module is communicated.
2. terminal according to claim 1, it is characterised in that the satellite antenna communication module includes：Antenna, power splitter
And radio frequency chip；
The antenna is used for the frequency signal for receiving big-dipper satellite；
The power splitter is used to the frequency signal work(being divided into B1 frequencies signal and S frequency signals；And believe the B1 frequencies
Number it is delivered to the radio frequency chip；
The radio frequency chip is used for according to the B1 frequencies signal output B1 frequency digital medium-frequency signals, and by the B1 frequencies number
Word intermediate-freuqncy signal is transmitted to the Big Dipper baseband chip.
3. terminal according to claim 2, it is characterised in that the satellite antenna communication module also includes wave filter；Institute
Stating wave filter includes B1 frequencies SAW filter and S frequency SAW filters；
The B1 frequencies SAW filter and the S frequencies SAW filter are separately positioned on the output channel of the power splitter
On, the B1 frequencies signal and the S frequencies signal exported to the power splitter is filtered processing.
4. terminal according to claim 2, it is characterised in that the terminal also includes RDSS radio frequency chips, the RDSS
Radio frequency chip is connected with the Big Dipper baseband chip and each satellite antenna communication module respectively；
The RDSS radio frequency chips are used to receive the S frequency point informations, produce S frequency digital medium-frequency signals, and by the S frequencies
Digital medium-frequency signal is transmitted to the Big Dipper baseband chip；
The Big Dipper baseband chip is additionally operable to receive the S frequencies digital medium-frequency signal, believes according to the S frequencies digital intermediate frequency
Number corresponding message communication information produces modulated signal；And the modulated signal is back to the RDSS radio frequency chips；
The RDSS radio frequency chips are additionally operable to be modulated the modulated signal, produce L frequency check-in signals, and by the L
Frequency check-in signal is launched by the satellite antenna communication module currently selected.
5. terminal according to claim 4, it is characterised in that the terminal is additionally provided with power amplifier, the power
Amplifier is arranged on the path of the RDSS radio frequency chips and the antenna；
The Big Dipper baseband chip is additionally operable to generate baseband signal, controls the power amplifier, to believe the L frequencies inbound
Number it is amplified processing.
6. terminal according to claim 1, it is characterised in that the terminal also includes RF switch, the RF switch
RF switch is passed including under and RF switch is uploaded；
Each RF switch is separately positioned on the logical of each satellite antenna communication module and the Big Dipper baseband chip
Lu Shang；
The Big Dipper baseband chip, which is additionally operable to be set according to the comparison result, enables signal；
It is described to enable the break-make that signal is used to control each RF switch, to gate the upper of the satellite antenna communication module
Pass channel and under pass channel.
7. a kind of method that applied satellite antenna is communicated, it is characterised in that methods described is applied to claim 1~6 times
Big Dipper baseband chip in terminal described in one, including：
Frequency digital medium-frequency signal is obtained by each satellite antenna communication module of the terminal respectively；
The carrier-to-noise ratio of each satellite antenna communication module is calculated according to the frequency digital medium-frequency signal；
The carrier-to-noise ratio is compared；
According to comparison result, choose the high satellite antenna communication module of the carrier-to-noise ratio and carry out Beidou satellite communication.
8. method according to claim 7, it is characterised in that the terminal also includes multiple RF switches；It is each described
RF switch is separately positioned on the path of each satellite antenna communication module and the Big Dipper baseband chip；
It is described according to comparison result, choose the high satellite antenna communication module of the carrier-to-noise ratio and carry out Beidou satellite communication bag
Include：
Set according to comparison result and enable signal；
The enable signal is sent to the RF switch, to control the corresponding RF switch of satellite antenna communication module
Break-make, the corresponding satellite antenna communication module of gating carries out Beidou satellite communication.
9. method according to claim 7, it is characterised in that methods described also includes：
Quantity previously according to the satellite antenna communication module carries out multifrequency point setting, to obtain multiple satellite antenna communication moulds
The frequency digital medium-frequency signal of block.
10. method according to claim 7, it is characterised in that described to calculate every according to the frequency digital medium-frequency signal
The carrier-to-noise ratio of the individual satellite antenna communication module, is specifically included：
The frequency digital medium-frequency signal is obtained according to the renewal frequency pre-set；
The carrier-to-noise ratio of each satellite antenna communication module is calculated according to the frequency digital medium-frequency signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511174.8A CN107317620A (en) | 2017-06-28 | 2017-06-28 | Terminal and method that applied satellite antenna is communicated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511174.8A CN107317620A (en) | 2017-06-28 | 2017-06-28 | Terminal and method that applied satellite antenna is communicated |
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| CN107317620A true CN107317620A (en) | 2017-11-03 |
Family
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| CN201710511174.8A Pending CN107317620A (en) | 2017-06-28 | 2017-06-28 | Terminal and method that applied satellite antenna is communicated |
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| CN108594270A (en) * | 2018-07-23 | 2018-09-28 | 北京华力创通科技股份有限公司 | Beidou array anti-interference positioning device and method |
| CN108832988A (en) * | 2018-05-28 | 2018-11-16 | 成都市精准时空科技有限公司 | A kind of method and communication terminal controlling multi-mode satellite serial communication |
| CN110943774A (en) * | 2019-12-06 | 2020-03-31 | 国网思极神往位置服务（北京）有限公司 | Method and device for real-time monitoring of aircraft flight status |
| CN111083687A (en) * | 2019-12-30 | 2020-04-28 | 北京悦航天翼电子信息技术有限公司 | Dual-mode airborne satellite communication modulation-demodulation terminal |
| CN111522040A (en) * | 2020-05-13 | 2020-08-11 | 天津云遥宇航科技有限公司 | Satellite positioning method based on double antennas |
| CN114786164A (en) * | 2022-06-20 | 2022-07-22 | 北京九天利建信息技术股份有限公司 | Multi-group Beidou antenna alarm device and method based on Beidou satellite and mobile communication |
| CN115801088A (en) * | 2021-12-27 | 2023-03-14 | 浙江时空道宇科技有限公司 | Satellite system and satellite |
| CN115833908A (en) * | 2022-11-17 | 2023-03-21 | 北京天海达科技有限公司 | Active intelligent antenna system capable of improving Beidou short message communication |
| CN116073884A (en) * | 2022-12-28 | 2023-05-05 | 航天行云科技有限公司 | Ocean buoy communication system and method based on high-low orbit satellite fusion |
| WO2024055895A1 (en) * | 2022-09-14 | 2024-03-21 | 华为技术有限公司 | Transceiving apparatus and terminal device |
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| CN108832988B (en) * | 2018-05-28 | 2021-09-17 | 成都市精准时空科技有限公司 | Method for controlling communication of multimode satellite communication terminal and communication terminal |
| CN108832988A (en) * | 2018-05-28 | 2018-11-16 | 成都市精准时空科技有限公司 | A kind of method and communication terminal controlling multi-mode satellite serial communication |
| CN108594270A (en) * | 2018-07-23 | 2018-09-28 | 北京华力创通科技股份有限公司 | Beidou array anti-interference positioning device and method |
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| CN110943774A (en) * | 2019-12-06 | 2020-03-31 | 国网思极神往位置服务（北京）有限公司 | Method and device for real-time monitoring of aircraft flight status |
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| CN111083687A (en) * | 2019-12-30 | 2020-04-28 | 北京悦航天翼电子信息技术有限公司 | Dual-mode airborne satellite communication modulation-demodulation terminal |
| CN111522040A (en) * | 2020-05-13 | 2020-08-11 | 天津云遥宇航科技有限公司 | Satellite positioning method based on double antennas |
| CN115801088A (en) * | 2021-12-27 | 2023-03-14 | 浙江时空道宇科技有限公司 | Satellite system and satellite |
| CN114786164A (en) * | 2022-06-20 | 2022-07-22 | 北京九天利建信息技术股份有限公司 | Multi-group Beidou antenna alarm device and method based on Beidou satellite and mobile communication |
| WO2024055895A1 (en) * | 2022-09-14 | 2024-03-21 | 华为技术有限公司 | Transceiving apparatus and terminal device |
| CN115833908A (en) * | 2022-11-17 | 2023-03-21 | 北京天海达科技有限公司 | Active intelligent antenna system capable of improving Beidou short message communication |
| CN116073884A (en) * | 2022-12-28 | 2023-05-05 | 航天行云科技有限公司 | Ocean buoy communication system and method based on high-low orbit satellite fusion |
| CN116073884B (en) * | 2022-12-28 | 2024-04-19 | 航天行云科技有限公司 | Ocean buoy communication system and method based on high-low orbit satellite fusion |
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Application publication date: 20171103 |