CN108344404A - A kind of millimeter wave bank base ocean wave observation instrument - Google Patents
A kind of millimeter wave bank base ocean wave observation instrument Download PDFInfo
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- CN108344404A CN108344404A CN201810051501.0A CN201810051501A CN108344404A CN 108344404 A CN108344404 A CN 108344404A CN 201810051501 A CN201810051501 A CN 201810051501A CN 108344404 A CN108344404 A CN 108344404A
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- 238000012545 processing Methods 0.000 claims abstract description 47
- 239000013078 crystal Substances 0.000 claims description 7
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- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract description 4
- 230000010355 oscillation Effects 0.000 description 8
- 230000003321 amplification Effects 0.000 description 7
- 238000003199 nucleic acid amplification method Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 2
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- 238000000465 moulding Methods 0.000 description 2
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/882—Radar or analogous systems specially adapted for specific applications for altimeters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
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- Computer Networks & Wireless Communication (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The present invention provides a kind of millimeter wave bank base ocean wave observation instruments, including Anneta module, broadband receiver, frequency synthesizer, data processing module, memory, display control module and power module；Anneta module is connected with broadband receiver；Frequency synthesizer is connected with broadband receiver and data processing module respectively；Data processing module is also connected with broadband receiver, memory and display control module；Power module is respectively modules power supply.The millimeter wave bank base ocean wave observation instrument sends and receives mechanism using Anneta module, broadband receiver and frequency synthesizer composition radiofrequency signal, by the pumping signal of the millimeter wave of generation, it is emitted in free space after counter amplify, simultaneously by the echo information received on sea after enhanced processing, it is transported to data processing module, realizes the direct acquisition of ocean waves corrugated elevation.
Description
Technical field
The present invention relates to a kind of ocean observation apparatus, especially a kind of millimeter wave bank base ocean wave observation instrument.
Background technology
Nearshore Wave not only seriously affects the safe navigation on naval vessel, but also seriously affects and restrict building for coastal engineering
If therefore, studying bank base wave observation procedure and device having important practical significance.Traditional wave measuring system generally uses
Indirect measure is not the measurement directly to wave, needs to be finally inversed by wave by other element and using its correspondence
The parameters such as wave height, velocity of wave and wave direction, and the correspondence between element leads to not obtain high there are more uncertain factor
Precision wave corrugated and its characteristic parameter.Therefore, the observation device of traditional bank base wave cannot directly obtain ocean waves corrugated
Elevation lacks and directly acquires the high means of wave wave.
Invention content
It is an object of the invention to：A kind of millimeter wave bank base wave that can directly obtain ocean waves corrugated elevation is provided
Observation device.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of millimeter wave bank base ocean wave observation instruments, including antenna
Module, broadband receiver, frequency synthesizer, data processing module, memory, display control module and power module；Antenna
Module is connected with broadband receiver, and the transmission frequency and receives frequency for being set according to broadband receiver are penetrated to send and receive
Frequency signal；Frequency synthesizer is connected with broadband receiver and data processing module respectively, for generate frequency synthesizer
Corresponding frequencies signal is sent to broadband receiver and data processing module；Data processing module also with broadband receiver, memory
And display control module is connected, data processing module is used to acquire the radiofrequency signal of broadband receiver reception, and memory is used for
The radiofrequency signal of data cached processing module acquisition, the display letter that display control module is sent for display data processing module
Number, and display control module also provides the input of control signal；Power module is respectively Anneta module, broadband receiver, frequency
Synthesizer, data processing module, memory and display control module power supply.
Further, Anneta module includes radio-frequency front-end, transmitting antenna, the first reception antenna and the second reception antenna；
The output end of the transmitting path of radio-frequency front-end is connected with transmitting antenna；The input terminal and first of first receiving path of radio-frequency front-end
Reception antenna is connected；The input terminal of second receiving path of radio-frequency front-end is connected with the second reception antenna.Utilize radio-frequency front-end pair
The millimeter wave pumping signal that broadband receiver generates radiates microwave after rf terminal amplifies, by transmitting antenna to assigned direction
Signal receives the echo-signal from sea to free space, while by two-way reception antenna, and is sent to width after being amplified
Band receiver is handled.
Further, broadband receiver includes up-converter circuit, the first lower frequency changer circuit, the second lower frequency changer circuit, first
IQ quadrature demodulators and the 2nd IQ quadrature demodulators；The input of the output end of up-converter circuit and the transmitting path of radio-frequency front-end
End is connected；The frequency input all the way of first lower frequency changer circuit is connected with the output end of the first receiving path of radio-frequency front-end；The
The frequency input all the way of two lower frequency changer circuits is connected with the output end of the second receiving path of radio-frequency front-end；First down coversion electricity
The output end on road is connected with the input terminal all the way of the first IQ quadrature demodulators；The output end of second lower frequency changer circuit and the 2nd IQ are just
The input terminal all the way of demodulator is handed over to be connected；The I signal output end of first IQ quadrature demodulators and the 2nd IQ quadrature demodulators with
And Q signal output end is connected with each acquisition port of data processing module respectively.Broadband receiver is for connecing Anneta module
The faint high-frequency wideband signal received chooses from adjoint noise and interference, and by amplification, detection and quadrature demodulation
Output signal is sent to data processing module afterwards.
Further, frequency synthesizer includes permanent source crystal oscillator, programmable FM intermediate-freuqncy signal source and locking phase mixting circuit；
Permanent source crystal oscillator is connected with locking phase mixting circuit, and constant clock signal is provided for locking phase mixting circuit；Locking phase mixting circuit it is each
Frequency output terminal respectively corresponding input terminal with programmable FM intermediate-freuqncy signal source, up-converter circuit frequency input all the way,
The another way frequency input of first lower frequency changer circuit, the another way frequency input of the second lower frequency changer circuit, the first IQ are orthogonal
The sampling clock of the another way input terminal of demodulator and the another way input terminal of the 2nd IQ quadrature demodulators, data processing module
The reference clock input of input terminal and data processing module is connected；The intermediate-freuqncy signal of programmable FM intermediate-freuqncy signal source exports
End is connected with the another way frequency input of up-converter circuit.The frequency modulation intermediate-freuqncy signal that frequency synthesizer generates is through up-converter circuit
Ka wave bands are converted to, after filtered, driving, power amplification, export the millimeter wave pumping signal of transmitting, while first time being become
The Ka band signals that frequency circuit and the second down coversion receive, amplify through low-noise amplifier, down-convert to intermediate frequency, filter and amplification
Afterwards intermediate-freuqncy signal is exported through the first IQ quadrature demodulators and the 2nd IQ quadrature demodulators respectively.
Further, data processing module includes FPGA processor, single board computer, GPU and four tunnel AD Acquisition Circuits；
The input terminal of four tunnel AD Acquisition Circuits respectively with the first IQ quadrature demodulators and the I signal output end of the 2nd IQ quadrature demodulators
And Q signal output end is connected；The output end of four tunnel AD Acquisition Circuits is connected with four collection terminals of FPGA processor respectively；
FPGA processor is connected communication with single board computer；The display signal end and control signal end of single board computer are controlled with display respectively
The display end of molding block is connected with control terminal；The data input pin of GPU is connected with the data output end of FPGA processor；GPU's
Display signal end is connected with the display end of display control module；The data access end of FPGA processor is connected with memory.
Further, AD Acquisition Circuit is the digital analog converter of frequency 1.5Gsps.
Further, display control module is touch screen.
The beneficial effects of the present invention are：Radio frequency is constituted using Anneta module, broadband receiver and frequency synthesizer to believe
Number send and receive mechanism, the pumping signal of the millimeter wave of generation is emitted to after counter amplify in free space, simultaneously
By the echo information received on sea after enhanced processing, it is transported to data processing module, realizes ocean waves corrugated
The direct acquisition of elevation；Echo-signal is acquired using data processing module, real-time interference processing is realized at the scanning imagery of aperture
Reason, echo data and the storage of real-time handling result.
Description of the drawings
Fig. 1 is the system structure diagram of the present invention.
Specific implementation mode
As shown in Figure 1, millimeter wave bank base ocean wave observation instrument provided by the invention includes：Anneta module, broadband receiver,
Frequency synthesizer, data processing module, memory, display control module and power module；Anneta module and broadband receiver
It is connected, transmission frequency and receives frequency for being set according to broadband receiver send and receive radiofrequency signal；Frequency synthesis
Device is connected with broadband receiver and data processing module respectively, and the corresponding frequencies signal for generating frequency synthesizer is sent
To broadband receiver and data processing module；Data processing module also with broadband receiver, memory and display control module
It is connected, data processing module is used to acquire the radiofrequency signal of broadband receiver reception, and memory is used for data cached processing module
The radiofrequency signal of acquisition, display control module are used for the display signal that display data processing module is sent, and display control module
The input of control signal is also provided；Power module is respectively Anneta module, broadband receiver, frequency synthesizer, data processing mould
Block, memory and display control module power supply.
Further, Anneta module includes radio-frequency front-end, transmitting antenna, the first reception antenna and the second reception antenna；
The output end of the transmitting path of radio-frequency front-end is connected with transmitting antenna；The input terminal and first of first receiving path of radio-frequency front-end
Reception antenna is connected；The input terminal of second receiving path of radio-frequency front-end is connected with the second reception antenna.
Further, broadband receiver includes up-converter circuit, the first lower frequency changer circuit, the second lower frequency changer circuit, first
IQ quadrature demodulators and the 2nd IQ quadrature demodulators；The input of the output end of up-converter circuit and the transmitting path of radio-frequency front-end
End is connected；The frequency input all the way of first lower frequency changer circuit is connected with the output end of the first receiving path of radio-frequency front-end；The
The frequency input all the way of two lower frequency changer circuits is connected with the output end of the second receiving path of radio-frequency front-end；First down coversion electricity
The output end on road is connected with the input terminal all the way of the first IQ quadrature demodulators；The output end of second lower frequency changer circuit and the 2nd IQ are just
The input terminal all the way of demodulator is handed over to be connected；The I signal output end of first IQ quadrature demodulators and the 2nd IQ quadrature demodulators with
And Q signal output end is connected with each acquisition port of data processing module respectively.
Further, frequency synthesizer includes permanent source crystal oscillator, programmable FM intermediate-freuqncy signal source and locking phase mixting circuit；
Permanent source crystal oscillator is connected with locking phase mixting circuit, and constant clock signal is provided for locking phase mixting circuit；Locking phase mixting circuit it is each
Frequency output terminal respectively corresponding input terminal with programmable FM intermediate-freuqncy signal source, up-converter circuit frequency input all the way,
The another way frequency input of first lower frequency changer circuit, the another way frequency input of the second lower frequency changer circuit, the first IQ are orthogonal
The sampling clock of the another way input terminal of demodulator and the another way input terminal of the 2nd IQ quadrature demodulators, data processing module
The reference clock input of input terminal and data processing module is connected；The intermediate-freuqncy signal of programmable FM intermediate-freuqncy signal source exports
End is connected with the another way frequency input of up-converter circuit.
Further, data processing module includes FPGA processor, single board computer, GPU and four tunnel AD Acquisition Circuits；
The input terminal of four tunnel AD Acquisition Circuits respectively with the first IQ quadrature demodulators and the I signal output end of the 2nd IQ quadrature demodulators
And Q signal output end is connected；The output end of four tunnel AD Acquisition Circuits is connected with four collection terminals of FPGA processor respectively；
FPGA processor is connected communication with single board computer；The display signal end and control signal end of single board computer are controlled with display respectively
The display end of molding block is connected with control terminal；The data input pin of GPU is connected with the data output end of FPGA processor；GPU's
Display signal end is connected with the display end of display control module；The data access end of FPGA processor is connected with memory.
FPGA uses the FPGA of XC7K325T models, is pre-processed to the sea return signal received；GPU is using low
Power consumption embedded gpu, which is realized to calculate, to be accelerated；Memory uses the DDR3 of 4GB；Single board computer realizes the control of whole device, production
The information of control information and reception passback needed for generating apparatus work, the monitoring function of finishing device.When work, FPGA's adopts
Sample clock and reference clock are provided by locking phase mixting circuit, and sampling initial position, sampling length and output data rate are by data
Single board computer in processing module is configured, according to the setting of these parameters, the orthogonal solutions of the first IQ of data processing module pair
The 4 tunnel wideband echoes signals progress AD transformation that tune device and the 2nd IQ quadrature demodulators are sent, 1.35 VPP of input signal amplitude,
Sampling clock 7dBm, FPGA are filtered the signal after AD conversion, realize the pretreatment of echo-signal；Then, will locate in advance
Signal after reason is sent to GPU, and GPU is accelerated to calculate pretreated signal using embedded gpu, the wave being calculated is wanted
Prime information passes to display control terminal by network and is shown.AD Acquisition Circuit is the digital analog converter of frequency 1.5Gsps, is shown
Show that control module is touch screen.
In the specific implementation, the power supply that power module provides passes through millimeter wave bank base ocean wave observation instrument provided by the invention
DC/DC circuit transformations are each group voltage needed for each function module circuit in device in control circuit board, are powered for modules.
Permanent source crystal oscillator generates reference signal using 100MHz constant-temperature crystal oscillators, is generated under up-converter circuit, first by locking phase mixting circuit
The local oscillation signal 1 of low phase noise needed for frequency changer circuit and the second lower frequency changer circuit, local oscillation signal 2, local oscillation signal 3 and
Local oscillation signal 4, while to the sampled clock signal and reference clock signal needed for FPGA output services.Then, it may be programmed and adjust
The centre frequency of the frequency modulation intermediate-freuqncy signal that frequency intermediate-freuqncy signal source generates, frequency modulation intermediate-freuqncy signal is 1.4GHz, pulse-mode signal band
Width is 18MHz, and continuous wave mode signal bandwidth is 120MHz and 300MHz；Frequency modulation intermediate-freuqncy signal and 1 signal of local oscillator（Frequency is
7.35GHz）Pass through up-converter circuit up-conversion a to intermediate frequency（Centre frequency is 8.75GHz）, after filter and amplification, by 4 frequencys multiplication
After be converted to radio frequency（Centre frequency is 35GHz, and pulse-mode signal bandwidth is 72MHz；Continuous wave mode signal bandwidth is
480MHz and 1200MHz）, then filtered drive amplification, required transmitting signal is exported after power amplification；First lower frequency changer circuit
And second lower frequency changer circuit be the radiofrequency signal that will be received（Centre frequency is 35GHz, and pulse-mode signal bandwidth is
72MHz, continuous wave mode signal bandwidth are 480MHz and 1200MHz）, after low noise amplification with local oscillation signal 2 or local oscillator
Signal 3（Frequency is 34.4GHz, and pulse mode uses local oscillation signal 2, continuous wave mode to use local oscillation signal 3）Under first
Frequency changer circuit and the second lower frequency changer circuit downconvert to intermediate frequency（Frequency is 0.6GHz）, after switch filtering group, through IQ
Quadrature demodulator（4 frequency of local oscillation signal is 0.6GHz）I, Q signal are exported afterwards.
Claims (7)
1. a kind of millimeter wave bank base ocean wave observation instrument, it is characterised in that：Including Anneta module, broadband receiver, frequency synthesis
Device, data processing module, memory, display control module and power module；Anneta module is connected with broadband receiver, is used for
Radiofrequency signal is sent and received according to the transmission frequency of broadband receiver setting and receives frequency；Frequency synthesizer respectively with width
Band receiver and data processing module are connected, and the corresponding frequencies signal for generating frequency synthesizer is sent to broadband reception
Machine and data processing module；Data processing module is also connected with broadband receiver, memory and display control module, at data
Reason module is used to acquire the radiofrequency signal of broadband receiver reception, radio frequency letter of the memory for the acquisition of data cached processing module
Number, display control module is used for the display signal that display data processing module is sent, and display control module also provides control letter
Number input；Power module be respectively Anneta module, broadband receiver, frequency synthesizer, data processing module, memory and
Display control module is powered.
2. millimeter wave bank base ocean wave observation instrument according to claim 1, it is characterised in that：Before Anneta module includes radio frequency
End, transmitting antenna, the first reception antenna and the second reception antenna；The output end and transmitting antenna of the transmitting path of radio-frequency front-end
It is connected；The input terminal of first receiving path of radio-frequency front-end is connected with the first reception antenna；Second receiving path of radio-frequency front-end
Input terminal be connected with the second reception antenna.
3. millimeter wave bank base ocean wave observation instrument according to claim 2, it is characterised in that：Broadband receiver includes upper change
Frequency circuit, the first lower frequency changer circuit, the second lower frequency changer circuit, the first IQ quadrature demodulators and the 2nd IQ quadrature demodulators；On
The output end of frequency changer circuit is connected with the input terminal of the transmitting path of radio-frequency front-end；The frequency all the way of first lower frequency changer circuit inputs
End is connected with the output end of the first receiving path of radio-frequency front-end；Before the frequency input all the way and radio frequency of second lower frequency changer circuit
The output end of second receiving path at end is connected；The output end of first lower frequency changer circuit is defeated all the way with the first IQ quadrature demodulators
Enter end to be connected；The output end of second lower frequency changer circuit is connected with the input terminal all the way of the 2nd IQ quadrature demodulators；First IQ is orthogonal
The I signal output end and Q signal output end of demodulator and the 2nd IQ quadrature demodulators are each with data processing module respectively
A acquisition port is connected.
4. millimeter wave bank base ocean wave observation instrument according to claim 3, it is characterised in that：Frequency synthesizer includes Heng Yuan
Crystal oscillator, programmable FM intermediate-freuqncy signal source and locking phase mixting circuit；Permanent source crystal oscillator is connected with locking phase mixting circuit, mixed for locking phase
Frequency circuit provides constant clock signal；Each frequency output terminal of locking phase mixting circuit is corresponding respectively to be believed with programmable FM intermediate frequency
Number input terminal in source, the frequency input all the way of up-converter circuit, the another way frequency input of the first lower frequency changer circuit, second
The another way frequency input of lower frequency changer circuit, the another way input terminal of the first IQ quadrature demodulators and the 2nd IQ quadrature demodulations
Another way input terminal, the sampling clock input terminal of data processing module and the reference clock input of data processing module of device
It is connected；The intermediate-freuqncy signal output end of programmable FM intermediate-freuqncy signal source is connected with the another way frequency input of up-converter circuit.
5. millimeter wave bank base ocean wave observation instrument according to claim 4, it is characterised in that：Data processing module includes
FPGA processor, single board computer, GPU and four tunnel AD Acquisition Circuits；The input terminal of four tunnel AD Acquisition Circuits is respectively with first
The I signal output end and Q signal output end of IQ quadrature demodulators and the 2nd IQ quadrature demodulators are connected；Four road AD acquisition electricity
The output end on road is connected with four collection terminals of FPGA processor respectively；FPGA processor is connected communication with single board computer；It is single
The display signal end and control signal end of plate computer are connected with the display end of display control module and control terminal respectively；GPU's
Data input pin is connected with the data output end of FPGA processor；The display end of the display signal end and display control module of GPU
It is connected；The data access end of FPGA processor is connected with memory.
6. millimeter wave bank base ocean wave observation instrument according to claim 5, it is characterised in that：AD Acquisition Circuit is frequency
The digital analog converter of 1.5Gsps.
7. millimeter wave bank base ocean wave observation instrument according to claim 1, it is characterised in that：Display control module is touch-control
Screen.
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| CN201810051501.0A CN108344404A (en) | 2018-01-19 | 2018-01-19 | A kind of millimeter wave bank base ocean wave observation instrument |
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| CN201810051501.0A CN108344404A (en) | 2018-01-19 | 2018-01-19 | A kind of millimeter wave bank base ocean wave observation instrument |
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Application publication date: 20180731 |