CN106972262A - A kind of spaceborne GNSS R multi-beams phased array antenna and its method - Google Patents
A kind of spaceborne GNSS R multi-beams phased array antenna and its method Download PDFInfo
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- CN106972262A CN106972262A CN201710221444.1A CN201710221444A CN106972262A CN 106972262 A CN106972262 A CN 106972262A CN 201710221444 A CN201710221444 A CN 201710221444A CN 106972262 A CN106972262 A CN 106972262A
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- feeding network
- phased array
- antenna
- driver
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
Abstract
The invention discloses a kind of spaceborne GNSS R multi-beams phased array antenna and its method, including left-handed aerial array and integrated radio-frequency front end.Left-handed aerial array includes N number of left-hand circular polarization antenna element, is installed on the front of aluminum honeycomb panel；Left-handed aerial array is used to receive GNSS satellite sea echo.Integrated radio-frequency front end is connected back-to-back with left-handed aerial array, is installed on the back side of aluminum honeycomb panel；Integrated radio-frequency front end is used to carry out the reflected signal of left-handed antenna array receiver the processing such as the amplification of low noise acoustic phase-shifting, Beam synthesis.The spaceborne GNSS R multi-beam phased array antennas of the present invention, the achievable reception to GNSS satellite sea echo and multiple wave beams are in orientation, the beam scanning function of pitch orientation ± 30 °, and different wave beams is respectively aligned to specular reflection point of the different GNSS satellite signals on sea.
Description
Technical field
The present invention relates to a kind of antenna assembly, more particularly to a kind of spaceborne GNSS-R multi-beams phased array antenna and its
Method.
Background technology
GNSS-R (Global Navigation Satellite System-Reflection) remote sensing technology is to utilize to lead
Navigate satellite L-band signal, with bank base, aviation or Space-borne, receives and handles ocean, land or target echo, realizes
Characteristic element extraction or the technology of target acquisition.GNSS satellite reflected signal is right-handed circular polarization, and after surface scattering, signal is strong
Degree decay and signal polarity upset, in left-hand circular polarization.At present, ground or airborne GNSS-R detections are typically using broad beam day
Line, receives sea echo；In spaceborne height, sea echo is faint, need to receive reflected signal using high-gain aerial.
High-gain aerial wave beam is narrower, and single fixed beam can only receive substar region mirror signal, and coverage is smaller, but
Using multi-beam phased array antenna, the sea echo of multiple GNSS satellites of different water areas can be received.
The content of the invention
The present invention is directed to above-mentioned problems of the prior art, proposes a kind of spaceborne GNSS-R multi-beams phased array antenna
Device, it uses multiple antenna beams, the sea echo of multiple GNSS satellites of different water areas can be received, solved
Under spaceborne height, the single fixed beam narrow width of high-gain aerial, coverage are small, can only cover substar reflector space
Problem.
In order to solve the above technical problems, the present invention is achieved through the following technical solutions：
A kind of spaceborne GNSS-R multi-beams phased array antenna, including：
Left-handed aerial array, including N number of left-hand circular polarization antenna element；N number of left-hand circular polarization antenna element is installed
In the front of aluminum honeycomb panel, for receiving reflected signal of the GNSS satellite on sea；
Integrated radio-frequency front end, is connected, is installed on the back side of aluminum honeycomb panel back-to-back with the left-handed aerial array；It is described
Integrated radio-frequency front end is used to carry out the amplification of low noise acoustic phase-shifting, Beam synthesis to the reflected signal of the left-handed antenna array receiver
Deng processing.
Antenna assembly of the present invention is pointed to by antenna beam and controlled, can be to multiple GNSS satellite signals on sea
The reflected signal of specular reflection point is received；Phased array antenna is integrated and modularized design, is the extension of antenna
There is provided convenient, when needing to improve antenna gain, when expanding antenna array, it need to only be expanded by antenna sub-module design
Exhibition, while reducing antenna weights and physical dimension.
Preferably, the integrated radio-frequency front end includes：Multi-way receiving module, beam-controller, driver and synthesis
Feeding network, wherein：The rear end of each left-hand circular polarization antenna element is respectively mounted multi-way receiving module described in one；It is described
Comprehensive feeding network is connected with beam-controller described in all multi-way receiving modules, driver and one respectively.It is described
Integrated radio-frequency front end is the integrated design, and integrated level is high, size is small, low in energy consumption and lightweight.
Preferably, the multi-way receiving module to the input signal from N number of left-hand circular polarization antenna element to enter
Row amplification, is divided into M roads per road work(, and row of channels is entered respectively with phase and amplitude, phase compensation；The beam-controller is to complete ripple
Control code is calculated, compensated and with phase, is pointed to antenna beam and is resided at predetermined direction；The driver is used to reception to come from institute
The control command and state parameter for stating beam-controller are converted into the control instruction to the multi-way receiving module and progress
Reallocation.
Preferably, the comprehensive feeding network, which includes microwave power, synthesizes network and feeding network；The microwave power is closed
Synthesized respectively per N roads to the radiofrequency signal for exporting corresponding port in the multi-way receiving module into network, form M
The radiofrequency signal of individual wave beam and output；The feeding network exports control to the driver to transmit the beam-controller
Signal processed and the control signal for controlling multi-way receiving module is produced by the driver.The comprehensive feeding network collection
Microwave power is synthesized, is integrated for distribution and signal control, realizes untetheredization design.
Preferably, prestoring the passage consistency of the antenna assembly obtained by test in the beam-controller
Calibration data, the multi-way receiving module coordinates beam steering signals to carry out passage by passage consistency calibration data
Width is mutually compensated, so as to realize the accurate scan of each wave beam.
Preferably, the antenna assembly controls multiple wave beams in -30 °~+30 ° of azimuth, -30 °~+30 ° models of the angle of pitch
It is scanned in enclosing, different wave beams is respectively aligned to specular reflection point of the reflected signal on sea of different GNSS satellites.
Preferably, the input signal from N number of left-hand circular polarization antenna element is put in the integrated radio-frequency front end
After big filtering, per Lu Gongfen M roads, respectively after phase shift, then every N roads are synthesized respectively, and the radiofrequency signal for forming M wave beam is defeated
Go out.
The present invention also provides a kind of method for the GNSS-R detections realized based on phased array, comprises the following steps：
S101:Left-handed aerial array is installed on to the front of aluminum honeycomb panel；
S102：Comprehensive feeding network is installed on to the back side of aluminum honeycomb panel；
S103：Multichannel component is installed on comprehensive feeding network, its input port and left-hand circular polarization antenna element
Rear end connection, its output port with synthesis feeding network be connected；
S104：Driver is installed on comprehensive feeding network, is connected with comprehensive feeding network；
S105：Beam-controller is installed on comprehensive feeding network, is connected with driver.
Preferably, the multi-way receiving module is put to the input signal from N number of left-hand circular polarization antenna element
Greatly, it is divided into M roads per road work(, row of channels is entered respectively with phase and amplitude, phase compensation；The beam-controller completes beam-control code meter
Calculate, compensate and with phase, point to antenna beam and reside at predetermined direction；The driver is reception from wave beam control
The control command and state parameter of device are converted into the control instruction to the multi-way receiving module and reallocated.
Preferably, the comprehensive feeding network, which includes microwave power, synthesizes network and feeding network；The microwave power is closed
Synthesized respectively per N roads into the radiofrequency signal that network exports corresponding port in the multi-way receiving module, form M ripple
The radiofrequency signal of beam and output；The feeding network transmit the beam-controller export the control signal to the driver with
And the control signal for controlling multi-way receiving module is produced by the driver.
Compared to prior art, the present invention has advantages below：
(1) the spaceborne GNSS-R multi-beams phased array antenna that the present invention is provided uses multi-beam phased array antenna, leads to
Cross antenna beam and point to control, the reflected signal of specular reflection point that can be to multiple GNSS satellite signals on sea is received；
(2) integrated radio-frequency front end of the invention uses integrated design, realizes untethered, and level of integrated system is high, chi
It is very little small, low in energy consumption, lightweight.
Brief description of the drawings
Fig. 1 shows for a kind of stacked structure of spaceborne GNSS-R multi-beams phased array antenna of one embodiment of the invention
It is intended to；
Fig. 2 is the structural representation of the integrated radio-frequency front end of one embodiment of the invention；
Fig. 3 is a kind of work of the method for the spaceborne GNSS-R multi-beams phased array antenna of implementation of one embodiment of the invention
Make flow chart；
In figure, 1- multi-beam phased array antennas；The left-handed aerial arrays of 11-；12- integrated radio-frequencies front end；13- aluminium honeybees
Nest plate；111- left-hand circular polarization antenna elements；121- multi-way receiving modules；122- beam-controllers；123- drivers；124-
Comprehensive feeding network.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with each reality of the accompanying drawing to the present invention
The mode of applying is explained in detail.
Embodiment 1
The multi-beam phased array antenna 1 of the present embodiment present invention in detail, its structure is as shown in figure 1, including left-handed day
Linear array 11 and integrated radio-frequency front end 12.Left-handed aerial array 11 is that back-to-back mode passes through aluminium with integrated radio-frequency front end 12
Cellular board 13 is installed；Left-handed aerial array 11 includes N number of left-hand circular polarization antenna element 111, installed in the front of aluminum honeycomb panel 13,
Integrated radio-frequency front end 12 is installed on the back side of aluminum honeycomb panel 13, and integrated radio-frequency front end 12 includes multi-way receiving module 121, ripple
Beam controller 122, driver 123 and comprehensive feeding network 124；Wherein：Left-handed aerial array 11 is used to receive GNSS reflection letters
Number, integrated radio-frequency front end 12 be used for left-handed aerial array 11 receive reflected signal be amplified, phase shift, power combing,
Form multiple wave beams.The spaceborne GNSS-R multi-beams phased array antenna 1 of the present embodiment is pointed to by antenna beam and controlled, can
The reflected signal of specular reflection point to multiple GNSS satellite signals on sea is received；Multi-beam phased array antenna 1
Integrated and modularized design, provides conveniently for the extension of antenna, when needing to improve antenna gain, expands antenna array
When, it need to be only extended by antenna sub-module design, while reducing antenna weights and physical dimension.
Embodiment 2
The present embodiment is that on the basis of embodiment 1, integrated radio-frequency front end 12 is described in detail, as shown in Fig. 2 this is penetrated
Frequency front end is the integrated design, including multi-way receiving module 121, beam-controller 122, driver 123 and comprehensive feed
Network 124.Each antenna element rear end of left-handed aerial array 11 connects a multi-way receiving module 121, multichannel reception group
Part 121, beam-controller 122, driver 123 are installed on comprehensive feeding network 124, and respectively with integrating feeding network 124
It is connected.Wherein integrating feeding network 124 includes microwave power synthesis network and feeding network, and collection microwave power is synthesized, for distribution
It is integrated with signal control function, realizes untetheredization design.The present embodiment is illustrated, integrated radio-frequency front end 12
The four tunnel input signals from tetra- left-hand circular polarization antenna elements of A, B, C, D are filtered after amplification, per Lu Gongfen two-way,
I.e. A left-hand circular polarizations antenna element work(is divided into A1 and A2, and B left-hand circular polarization antenna element work(is divided into B1 and B2, C left-hand circular polarizations
Antenna element work(is divided into C1 and C2, and D left-hand circular polarization antenna element work(is divided into D1 and D2；Respectively after phase shift, the tunnels of Zai Mei tetra- difference
Synthesized, form two wave beams, i.e. A1+B1+C1+D1 wave beams and A2+B2+C2+D2 wave beams.
The course of work of multi-beam phased array antenna 1：
GNSS satellite reflected signal is received after sea surface reflection by N number of left-hand circular polarization antenna element 111, and multichannel connects
Receive component 121 input signal of left-hand circular polarization antenna element 111 is amplified, work(point M roads, enter respectively row of channels with mutually and
Amplitude, phase compensation, and then the radiofrequency signal that microwave power synthesis network exports corresponding port in multi-way receiving module 121
Synthesized respectively per N roads, form the radiofrequency signal output of M wave beam, signal is finally completed by follow-up equipment again
Final identification；In this process, beam-controller 122 is calculated to complete beam-control code, compensated and with phase, refers to antenna beam
To residing at predetermined direction；Driver 123 is used to the control command and state parameter of the beam-controller 122 of reception to change
The control instruction of paired multi-way receiving module 121 is simultaneously reallocated.
Embodiment 3
The side of the spaceborne device of GNSS-R multi-beams phased array antenna 1 of implementation of the present invention is described in detail in the present embodiment
Method, as shown in figure 3, comprising the following steps：
S101：Left-handed aerial array 11 is installed on the front of aluminum honeycomb panel 13；
S102：Comprehensive feeding network 124 is installed on the back side of aluminum honeycomb panel 13；
Multi-way receiving module 121 is installed on comprehensive feeding network 124 by S103, its input port and left-hand circular polarization
The rear end connection of antenna element 111, its output port is connected with comprehensive feeding network 124；
S104：Driver 123 is installed on comprehensive feeding network 124, is connected with comprehensive feeding network 124；
S105：Beam-controller 122 is installed on comprehensive feeding network 124, is connected with driver 123.
121 pairs of input signals from N number of left-hand circular polarization antenna element 111 of multi-way receiving module are amplified, often
Road work(is divided into M roads, and row of channels is entered respectively with phase and amplitude, phase compensation；Beam-controller 122 completes beam-control code and calculates, compensates
Predetermined direction is resided at with phase pointing to, antenna beam；Control from beam-controller 122 of the driver 123 reception
Order and state parameter are converted into the control instruction to multi-way receiving module 121 and reallocated.
Comprehensive feeding network 124 includes microwave power and synthesizes network and feeding network；Microwave power synthesis network will lead to more
The radiofrequency signal that corresponding port is exported in road receiving unit is synthesized respectively per N roads, and the radiofrequency signal of M wave beam of formation is simultaneously defeated
Go out；Feeding network transmission beam-controller is exported to the control signal of driver and produced by driver for controlling multichannel
The control signal of receiving unit.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is defined.
Claims (10)
1. a kind of spaceborne GNSS-R multi-beams phased array antenna, it is characterised in that including：
Left-handed aerial array, including N number of left-hand circular polarization antenna element；N number of left-hand circular polarization antenna element is installed on aluminium
The front of cellular board, for receiving reflected signal of the GNSS satellite on sea；
Integrated radio-frequency front end, is connected, is installed on the back side of aluminum honeycomb panel back-to-back with the left-handed aerial array；The one
Changing radio-frequency front-end is used for the pretreatment before the reflected signal of the left-handed antenna array receiver is identified.
2. spaceborne GNSS-R multi-beams phased array antenna as claimed in claim 1, it is characterised in that the integration is penetrated
Frequency front end includes：Multi-way receiving module, beam-controller, driver and comprehensive feeding network, wherein：
The rear end of each left-hand circular polarization antenna element is respectively mounted multi-way receiving module described in one；
The comprehensive feeding network respectively with beam-controller phase described in all multi-way receiving modules, driver and one
Even.
3. spaceborne GNSS-R multi-beams phased array antenna as claimed in claim 2, it is characterised in that the multichannel connects
Component is received to be filtered amplification to the input signal from N number of left-hand circular polarization antenna element, is divided into M roads per road work(, point
Do not enter row of channels with phase and amplitude, phase compensation；The beam-controller is calculated to complete beam-control code, compensated and with phase, is made
Antenna beam points to and resides at predetermined direction；The driver is used to the control command from the beam-controller reception
And state parameter is converted into the control instruction to the multi-way receiving module and reallocated.
4. spaceborne GNSS-R multi-beams phased array antenna as claimed in claim 3, it is characterised in that the comprehensive feed
Network includes microwave power and synthesizes network and feeding network；Microwave power synthesis network is to by the multichannel reception group
The radiofrequency signal that corresponding port is exported in part is synthesized respectively per N roads, forms radiofrequency signal and the output of M wave beam；It is described
Feeding network is exported to the control signal of the driver transmitting the beam-controller and produced by the driver
Control signal for controlling multi-way receiving module.
5. spaceborne GNSS-R multi-beams phased array antenna as claimed in claim 2, it is characterised in that the wave beam control
The passage consistency calibration data of the antenna assembly obtained by test, the multi-way receiving module are prestored in device
Beam steering signals are coordinated mutually to be compensated to carry out width to passage by passage consistency calibration data.
6. spaceborne GNSS-R multi-beams phased array antenna as claimed in claim 1, it is characterised in that the antenna assembly
Multiple wave beams are controlled to be scanned in the range of -30 °~+30 ° of azimuth, -30 °~+30 ° of the angle of pitch, different wave beam difference
It is directed at specular reflection point of the reflected signal on sea of different GNSS satellites.
7. spaceborne GNSS-R multi-beams phased array antenna as claimed in claim 1, it is characterised in that the integration is penetrated
Frequency front end, per Lu Gongfen M roads, is moved respectively by after the amplification filtering of the input signal of N number of left-hand circular polarization antenna element
Xiang Hou, then synthesized respectively per N roads, form the radiofrequency signal output of M wave beam.
8. a kind of method for the GNSS-R detections realized based on phased array, it is characterised in that comprise the following steps：
S101:Left-handed aerial array is installed on to the front of aluminum honeycomb panel；
S102：Comprehensive feeding network is installed on to the back side of aluminum honeycomb panel；
S103：Multichannel component is installed on comprehensive feeding network, after its input port and left-hand circular polarization antenna element
End connection, its output port is connected with comprehensive feeding network；
S104：Driver is installed on comprehensive feeding network, is connected with comprehensive feeding network；
S105：Beam-controller is installed on comprehensive feeding network, is connected with driver.
9. the method for a kind of GNSS-R detections realized based on phased array as claimed in claim 8, it is characterised in that described many
Channel reception component is amplified to the input signal from N number of left-hand circular polarization antenna element, is divided into M roads per road work(, respectively
Enter row of channels with phase and amplitude, phase compensation；The beam-controller completes beam-control code and calculates, compensates and with phase, makes antenna ripple
Shu Zhixiang resides at predetermined direction；Control command and state ginseng from the beam-controller of the driver reception
Number is converted into the control instruction to the multi-way receiving module and reallocated.
10. the method for a kind of GNSS-R detections realized based on phased array as claimed in claim 9, it is characterised in that described
Comprehensive feeding network includes microwave power and synthesizes network and feeding network；The microwave power synthesis network connects the multichannel
Receive the radiofrequency signal that corresponding port is exported in component to be synthesized respectively per N roads, form radiofrequency signal and the output of M wave beam；
The feeding network transmits the beam-controller and exports to the control signal of the driver and produced by the driver
Control signal for controlling multi-way receiving module.
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| CN201710221444.1A CN106972262A (en) | 2017-04-06 | 2017-04-06 | A kind of spaceborne GNSS R multi-beams phased array antenna and its method |
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| CN201710221444.1A CN106972262A (en) | 2017-04-06 | 2017-04-06 | A kind of spaceborne GNSS R multi-beams phased array antenna and its method |
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Cited By (6)
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|---|---|---|---|---|
| CN108008388A (en) * | 2017-11-27 | 2018-05-08 | 上海航天测控通信研究所 | A kind of spaceborne phased array SAR load beam-steering methods |
| CN109116387A (en) * | 2018-10-24 | 2019-01-01 | 曲卫 | Navigational satellite reflected signal intermediate frequency Enhancement Method |
| CN109884668A (en) * | 2019-04-03 | 2019-06-14 | 上海航天测控通信研究所 | A kind of GNSS-R correlator and GNSS-R comprehensive survey device based on distributed computing |
| CN112271455A (en) * | 2020-09-28 | 2021-01-26 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Satellite-borne small active phased-array antenna beam control method |
| CN112421240A (en) * | 2020-11-09 | 2021-02-26 | 重庆两江卫星移动通信有限公司 | Single-channel beam scanning device and method based on Faraday rotation |
| CN115632241A (en) * | 2022-10-31 | 2023-01-20 | 成都华芯天微科技有限公司 | Satellite-borne multi-beam phased array antenna for low-orbit satellite communication |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008388A (en) * | 2017-11-27 | 2018-05-08 | 上海航天测控通信研究所 | A kind of spaceborne phased array SAR load beam-steering methods |
| CN108008388B (en) * | 2017-11-27 | 2021-07-27 | 上海航天测控通信研究所 | Satellite-borne phased array SAR load beam control method |
| CN109116387A (en) * | 2018-10-24 | 2019-01-01 | 曲卫 | Navigational satellite reflected signal intermediate frequency Enhancement Method |
| CN109884668A (en) * | 2019-04-03 | 2019-06-14 | 上海航天测控通信研究所 | A kind of GNSS-R correlator and GNSS-R comprehensive survey device based on distributed computing |
| CN109884668B (en) * | 2019-04-03 | 2022-12-09 | 上海航天测控通信研究所 | GNSS-R correlator device based on distributed computation and GNSS-R comprehensive detection device |
| CN112271455A (en) * | 2020-09-28 | 2021-01-26 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Satellite-borne small active phased-array antenna beam control method |
| CN112271455B (en) * | 2020-09-28 | 2022-08-30 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Satellite-borne small active phased-array antenna beam control method |
| CN112421240A (en) * | 2020-11-09 | 2021-02-26 | 重庆两江卫星移动通信有限公司 | Single-channel beam scanning device and method based on Faraday rotation |
| CN112421240B (en) * | 2020-11-09 | 2022-03-25 | 重庆两江卫星移动通信有限公司 | Single-channel beam scanning device and method based on Faraday rotation |
| CN115632241A (en) * | 2022-10-31 | 2023-01-20 | 成都华芯天微科技有限公司 | Satellite-borne multi-beam phased array antenna for low-orbit satellite communication |
| CN115632241B (en) * | 2022-10-31 | 2023-05-30 | 成都华芯天微科技有限公司 | Satellite-borne multi-beam phased array antenna for low-orbit satellite communication |
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Application publication date: 20170721 |