CN108205136A - radar and detection device - Google Patents
radar and detection device Download PDFInfo
- Publication number
- CN108205136A CN108205136A CN201611187537.9A CN201611187537A CN108205136A CN 108205136 A CN108205136 A CN 108205136A CN 201611187537 A CN201611187537 A CN 201611187537A CN 108205136 A CN108205136 A CN 108205136A
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- Prior art keywords
- antenna
- radar
- signal
- broad
- transmitting
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Classifications
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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
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- 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
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a kind of radar and detection devices.Wherein, which includes：At least one transmitting antenna, wherein, transmitting antenna is the first broad-band antenna, for sending detectable signal with detecting objects；At least one reception antenna, wherein, reception antenna is the second broad-band antenna, for receives echo-signal, wherein, echo-signal is fed back for object after the detectable signal for receiving transmitting antenna transmitting, and the information of object is carried in echo-signal.The present invention solve radar in the relevant technologies distance resolution it is low the technical issues of.
Description
Technical field
The present invention relates to field of radar, in particular to a kind of radar and detection device.
Background technology
At present, under the civilian traffics tool scene such as automobile, general 24GHz and 77GHz radars have from 100MHz to
The bandwidth of operation of 1GHz and the distance resolution from 1.5m to 0.15m, and this distance resolution cannot reach closely area
Divide the ability of such as pedestrian's wisp.
For it is above-mentioned the problem of, currently no effective solution has been proposed.
Invention content
An embodiment of the present invention provides a kind of radar and detection device, at least to solve the distance of radar in the relevant technologies point
The technical issues of resolution is low.
One side according to embodiments of the present invention provides a kind of radar, including：At least one transmitting antenna, wherein,
Above-mentioned transmitting antenna is the first broad-band antenna, for sending detectable signal with detecting objects；At least one reception antenna,
In, above-mentioned reception antenna is the second broad-band antenna, for receives echo-signal, wherein, above-mentioned echo-signal is above-mentioned object
It is fed back after the above-mentioned detectable signal for receiving above-mentioned transmitting antenna transmitting, above-mentioned mesh is carried in above-mentioned echo-signal
Mark the information of object.
Further, above-mentioned first broad-band antenna includes：At least one first broad-band antenna unit, for emitting signal；
Broadband feeding network is connected with above-mentioned at least one first broad-band antenna unit, for above-mentioned at least one first broadband day
Line unit realize the weighting of mouth face and/or, above-mentioned second broad-band antenna includes：At least one second broad-band antenna unit, for connecing
The collection of letters number；Broadband feeding network is connected with above-mentioned at least one second broad-band antenna unit, for above-mentioned at least one second
Broad-band antenna unit realizes the weighting of mouth face.
Further, above-mentioned broadband feeding network is parallelly feeding network.
Further, at least one above-mentioned transmitting antenna and/or at least one above-mentioned reception antenna are pressed in the pitch direction
Preset height is set, to detect the elevation information of above-mentioned object.
Further, the half of the wavelength of signal that above-mentioned preset height is emitted by least one above-mentioned transmitting antenna,
And/or the half of the wavelength of at least one above-mentioned reception antenna received signal.
Further, each above-mentioned transmitting antenna connects a transmission channel respectively；And/or each above-mentioned reception day
Line connects a receiving channel respectively.
Further, all above-mentioned transmitting antennas pass through respective transmission channel while or time-sharing work；It is and/or all
Above-mentioned reception antenna pass through respective receiving channel simultaneously or time-sharing work.
Further, above-mentioned radar further includes：Processing unit, for handling the information of above-mentioned object, to obtain radar
Result of detection；Radio-frequency unit, for above- mentioned information to be transferred to above-mentioned processing unit.
According to another aspect of the present invention, a kind of detection device is additionally provided, including：The vehicles；Above-mentioned radar,
In, above-mentioned radar is arranged on the above-mentioned vehicles.
In embodiments of the present invention, using a kind of radar, including：At least one transmitting antenna, wherein, above-mentioned transmitting antenna
For the first broad-band antenna, for sending detectable signal with detecting objects；At least one reception antenna, wherein, above-mentioned reception day
Line is the second broad-band antenna, for receives echo-signal, wherein, above-mentioned echo-signal is receiving above-mentioned hair for above-mentioned object
It is fed back after penetrating the above-mentioned detectable signal of antenna transmitting, the information of above-mentioned object is carried in above-mentioned echo-signal, by
It is wide in signal bandwidth, reach the distance resolution purpose for improving radar, it is achieved thereby that radar closely differentiate by high-resolution
The ability of the wisps such as pedestrian has the technique effect of pedestrian's identification function, and then solves the distance of radar in the relevant technologies
The technical issues of resolution ratio is low.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair
Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of schematic diagram of optional radar according to embodiments of the present invention；
Fig. 2 is a kind of schematic diagram of optional antenna according to embodiments of the present invention；
Fig. 3 is the schematic diagram of the optional antenna of another kind according to embodiments of the present invention.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction in the embodiment of the present invention
The technical solution in the embodiment of the present invention is clearly and completely described in attached drawing, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be the object for distinguishing similar, and specific sequence or precedence are described without being used for.It should be appreciated that it uses in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not listing clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
Embodiment 1
According to embodiments of the present invention, a kind of radar embodiment is provided, Fig. 1 is that one kind according to embodiments of the present invention is optional
Radar schematic diagram；As shown in Figure 1, the radar includes：At least one transmitting antenna, wherein, transmitting antenna is the first broadband
Antenna, for sending detectable signal with detecting objects；At least one reception antenna, wherein, reception antenna is the second broadband day
Line, for receives echo-signal, wherein, echo-signal is fed back for object after the detectable signal for receiving transmitting antenna transmitting
Back, the information of object is carried in echo-signal.
That is, the transmitting terminal and receiving terminal in radar use multiple transmitting antennas and reception antenna respectively, pass through signal
The mutiple antennas of transmitting terminal and receiving terminal is transmitted and is received.Also, multiple transmitting antennas and reception antenna are all broad-band antenna, by
The resolution ratio of radar can be improved in broad-band antenna so that radar is capable of the ability of the wisps such as distinguishing pedestrian, has pedestrian's knowledge
Other function.It should be noted that reception antenna is the second broad-band antenna, the echo-signal of reception is the spy sent by transmitting antenna
When surveying signal detection object, the wave signal that has object to feed back, the information that object is carried in the signal includes mesh
Mark the other informations such as the size of object, the barrier size of surrounding.
In embodiments of the present invention, using a kind of radar, including：At least one transmitting antenna, wherein, above-mentioned transmitting antenna
For the first broad-band antenna, for sending detectable signal with detecting objects；At least one reception antenna, wherein, above-mentioned reception day
Line is the second broad-band antenna, for receives echo-signal, wherein, above-mentioned echo-signal is receiving above-mentioned hair for above-mentioned object
It is fed back after penetrating the above-mentioned detectable signal of antenna transmitting, the information of above-mentioned object is carried in above-mentioned echo-signal, by
It is wide in signal bandwidth, reach the distance resolution purpose for improving radar, it is achieved thereby that radar closely differentiate by high-resolution
The ability of the wisps such as pedestrian has the technique effect of pedestrian's identification function, and then solves the distance of radar in the relevant technologies
The technical issues of resolution ratio is low.
The composition of antenna can be a variety of, and Fig. 2 is a kind of schematic diagram of optional antenna according to embodiments of the present invention,
As shown in Fig. 2, antenna includes mutiple antennas unit and feeding network.Optionally, the first broad-band antenna includes：At least one first
Broad-band antenna unit, for emitting signal；Broadband feeding network is connected at least one first broad-band antenna unit, for pair
At least one first broad-band antenna unit realize the weighting of mouth face and/or, the second broad-band antenna includes：At least one second broadband
Antenna element, for receiving signal；Broadband feeding network is connected at least one second broad-band antenna unit, for at least
One the second broad-band antenna unit realizes the weighting of mouth face.Optionally, broadband feeding network is parallelly feeding network.
That is, each reception antenna and/or transmitting antenna are made of several broad-band antenna units and broadband feeding network and (lead to
Often it is parallelly feeding network, broadband feeding network can realize antenna the weighting of mouth face, reach the spies such as Sidelobe, wave beam forming
Property；In order to compact-sized, usually micro-strip form), reach the relative bandwidth more than 5%, i.e., have in 77GHz frequency ranges more than 4G's
Bandwidth of operation reaches the high-resolution of 3.75cm；More than 100GHz frequency ranges, the bandwidth of operation more than 6G can be reached, reached
The high-resolution of 2.5cm to reach the ability of the wisps such as distinguishing pedestrian, has pedestrian's identification function.
Optionally, Fig. 3 is the schematic diagram of the optional antenna of another kind according to embodiments of the present invention, from the figure 3, it may be seen that in figure
The height of antenna element be different, therefore, optionally, at least one transmitting antenna and/or at least one reception antenna exist
It is set in pitch orientation by preset height, with the elevation information of detecting objects.It is certain in pitching offset by one or more
The transmitting of distance and/or reception antenna transmitting or received signal, can with it is unmigrated transmitting and/or reception antenna transmitting or
Received signal compare, if phase and/or amplitude compare, to target pitching to elevation information detect.
Optionally, the half of the wavelength for the signal that preset height is emitted by least one transmitting antenna and/or at least one
The half of the wavelength of a reception antenna received signal.
It should be noted that wherein one or more transmittings and/or reception antenna are inclined up and/or down in pitch orientation
From other antenna a certain distance, usual pitching offset is the wavelength of half, to avoid there is pitch angle detection mould
The problem of paste, naturally it is also possible to it is other pre-determined distances, it can be determines according to actual conditions.One or more transmitting and/or reception
Antenna is also designed in the different beam position of pitch orientation, to meet the detection to different height object.
Optionally, each transmitting antenna connects a transmission channel respectively；And/or each reception antenna connects respectively
One receiving channel.That is, radar includes at least one transmitting antenna and at least one reception antenna, each transmitting antenna connection
One transmission channel carries out transmitting signal, and each reception antenna connects a receiving channel and carries out reception signal, transmitting antenna or
Reception antenna can be pitching narrow beam, orientation broad beam antenna etc..
Optionally, all transmitting antennas pass through respective transmission channel while or time-sharing work；And/or all receptions
Antenna passes through respective receiving channel while or time-sharing work.I.e. according to detection angle and detection range, one or more transmitting
Antenna and one or more reception antennas simultaneously or time-sharing work, can make full use of antenna aperture, receive sent more by multiple
The technologies such as antenna and digital bea mforming realize the narrow angle of one-dimensional orientation middle-range or the detection of low coverage wide angle high-resolution
Optionally, radar further includes：Processing unit, for the information of processing target object, to obtain radar detection result；It penetrates
Frequency device, for transmitting information to processing unit.
In addition, above-mentioned radar is used together with SAR imaging functions, distance can be realized to the high-resolution with orientation
Detection.The technologies such as more reception antennas and digital bea mforming is being sent to realize the narrow angle of one-dimensional orientation middle-range or near by multiple
While detection away from wide angle high-resolution, adjust the distance to high-resolution detection is realized, so as to fulfill to small mesh such as similar pedestrians
Target detects.
Embodiment 2
According to another aspect of the present invention, a kind of detection device is additionally provided, including：The vehicles；Radar, wherein, on
Radar is stated to be arranged on the above-mentioned vehicles.The radar includes：At least one transmitting antenna, wherein, transmitting antenna is wide for first
Band antenna, for sending detectable signal with detecting objects；At least one reception antenna, wherein, reception antenna is the second broadband
Antenna, for receives echo-signal, wherein, echo-signal is anti-after the detectable signal for receiving transmitting antenna transmitting for object
It is fed back to what is come, the information of object is carried in echo-signal.Optionally, the first broad-band antenna includes：At least one first is wide
Band antenna element, for emitting signal；Broadband feeding network is connected at least one first broad-band antenna unit, for extremely
A few first broad-band antenna unit realize the weighting of mouth face and/or, the second broad-band antenna includes：At least one second broadband day
Line unit, for receiving signal；Broadband feeding network is connected at least one second broad-band antenna unit, for at least one
A second broad-band antenna unit realizes the weighting of mouth face.Optionally, broadband feeding network is parallelly feeding network.Optionally, at least
One transmitting antenna and/or at least one reception antenna are set in the pitch direction by preset height, with the height of detecting objects
Spend information.Optionally, the half of the wavelength for the signal that preset height is emitted by least one transmitting antenna and/or at least one
The half of the wavelength of a reception antenna received signal.Optionally, each transmitting antenna connects a transmission channel respectively；
And/or each reception antenna connects a receiving channel respectively.Optionally, all transmitting antennas are logical by respective transmitting
Road while or time-sharing work；And/or all reception antennas pass through respective receiving channel while or time-sharing work.Optionally,
Radar further includes：Processing unit, for the information of processing target object, to obtain radar detection result；Radio-frequency unit, for that will believe
Breath is transferred to processing unit.
Wherein, the vehicles can be automobile, such as new-energy automobile or motorcycle or the steamer vehicles,
It no longer limits herein.Radar can be arranged on the outer surface or other places being easily installed of the vehicles, and such as be mounted on vapour
In the car light of vehicle or on the roof of automobile, the position of installation no longer limits herein.
In embodiments of the present invention, the distance resolution purpose for improving radar has been reached, it is achieved thereby that radar is closely
The ability of the wisps such as high-resolution distinguishing pedestrian has the technique effect of pedestrian's identification function, and then solves the relevant technologies
The technical issues of distance resolution of middle radar is low.
It should be noted that radar in embodiment 2 is same or like with radar in embodiment 1, herein no longer
It repeats.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In the above embodiment of the present invention, all emphasize particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of radar, which is characterized in that including：
At least one transmitting antenna, wherein, the transmitting antenna is the first broad-band antenna, for sending detectable signal to detect mesh
Mark object；
At least one reception antenna, wherein, the reception antenna is the second broad-band antenna, for receives echo-signal, wherein, institute
State what echo-signal was fed back for the object after the detectable signal for receiving the transmitting antenna transmitting, it is described
The information of the object is carried in echo-signal.
2. radar according to claim 1, which is characterized in that
First broad-band antenna includes：
At least one first broad-band antenna unit, for emitting signal；
Broadband feeding network is connected at least one first broad-band antenna unit, for wide to described at least one first
Band antenna element realizes the weighting of mouth face,
And/or
Second broad-band antenna includes：
At least one second broad-band antenna unit, for receiving signal；
Broadband feeding network is connected at least one second broad-band antenna unit, for wide to described at least one second
Band antenna element realizes the weighting of mouth face.
3. radar according to claim 2, which is characterized in that the broadband feeding network is parallelly feeding network.
4. radar according to claim 1, which is characterized in that
At least one transmitting antenna and/or at least one reception antenna are set in the pitch direction by preset height,
To detect the elevation information of the object.
5. radar according to claim 4, which is characterized in that the preset height is at least one transmitting antenna institute
The half of the wavelength of the half of the wavelength of the signal of transmitting and/or at least one reception antenna received signal.
6. radar according to claim 1, which is characterized in that
Each described transmitting antenna connects a transmission channel respectively；And/or
Each described reception antenna connects a receiving channel respectively.
7. radar according to claim 6, which is characterized in that
All transmitting antennas pass through respective transmission channel while or time-sharing work；And/or
All reception antennas pass through respective receiving channel while or time-sharing work.
8. radar according to any one of claim 1 to 7, which is characterized in that the radar further includes：
Processing unit, for handling the information of the object, to obtain radar detection result；
Radio-frequency unit, for described information to be transferred to the processing unit.
9. a kind of detection device, which is characterized in that including：
The vehicles；
Radar described in any item of the claim 1 to 8, wherein, the radar is arranged on the vehicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187537.9A CN108205136A (en) | 2016-12-20 | 2016-12-20 | radar and detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611187537.9A CN108205136A (en) | 2016-12-20 | 2016-12-20 | radar and detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108205136A true CN108205136A (en) | 2018-06-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611187537.9A Pending CN108205136A (en) | 2016-12-20 | 2016-12-20 | radar and detection device |
Country Status (1)
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|---|---|
| CN (1) | CN108205136A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507660A (en) * | 2018-11-19 | 2019-03-22 | 山东师范大学 | A kind of multistage radar cascade detection system and method |
| CN110785676A (en) * | 2018-11-30 | 2020-02-11 | 深圳市大疆创新科技有限公司 | Upper obstacle detection method, device, system, vehicle and storage medium |
| WO2023087232A1 (en) * | 2021-11-19 | 2023-05-25 | 华为技术有限公司 | Radar system and method for detecting pedestrian, and vehicle |
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| WO2023087232A1 (en) * | 2021-11-19 | 2023-05-25 | 华为技术有限公司 | Radar system and method for detecting pedestrian, and vehicle |
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Application publication date: 20180626 |