CN110488284A - A kind of biradical Spaceborne SAR System multichannel receiver design method and device - Google Patents
A kind of biradical Spaceborne SAR System multichannel receiver design method and device Download PDFInfo
- Publication number
- CN110488284A CN110488284A CN201910690775.9A CN201910690775A CN110488284A CN 110488284 A CN110488284 A CN 110488284A CN 201910690775 A CN201910690775 A CN 201910690775A CN 110488284 A CN110488284 A CN 110488284A
- Authority
- CN
- China
- Prior art keywords
- signal
- channel
- receiving
- biradical
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
- G01S13/904—SAR modes
- G01S13/9058—Bistatic or multistatic SAR
-
- 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
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/35—Details of non-pulse systems
- G01S7/352—Receivers
- G01S7/354—Extracting wanted echo-signals
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention belongs to polarization sensitive synthetic aperture radar system multichannel receiver technical field, a kind of biradical Spaceborne SAR System multichannel receiver design method and device are disclosed.The biradical Spaceborne SAR System multichannel receiver design method and device include eight tunnel receiving channels, and each road radio frequency reception channel is unified by power conversion unit and control allocation unit offer ± 5V power supply and serial control signal.The functions such as the every road radio frequency reception channel low noise amplification of energy complete independently radar echo signal, MGC, intermediate frequency amplification and balanced phase-shift compensation output, every two-way receiving channel via intersecting backup output, Phase amplitude-matched performance Index Influence the imaging indicators of entire radar system.Outstanding advantages of the invention: first is that more meet New System high-resolution using multichannel receiver, the work requirements of wide swath satellite-borne SAR；Second is that the amplitude and phase for dividing function clutch to compensate receiving channel by balanced phase shifter and micro-strip function, inter-channel level consistency reach 0.4dB, phase equalization reaches 2 °.
Description
Technical field
The invention belongs to synthetic aperture radar (SAR) Channel Technology fields, and in particular to a kind of biradical Spaceborne SAR System is more
Channel receiver design method and device.
Background technique
(1) with the development of space technology, the competition of various countries' space exploration, satellite-borne synthetic aperture radar
(SAR) can not be influenced by weather environment, weather etc., can round-the-clock high-resolution carry out earth observation, have become current satellite
One of the important research direction of main load.The low noise that radar receiver completes radar echo signal in Spaceborne SAR System is put
Greatly, functions, the performance indicator such as MGC, radio frequency amplification and intersection backup output affect the imaging indicators of entire radar system.
(2) New System high-resolution, wide swath satellite-borne SAR technical requirements radar receiver have high-precision between multichannel
Amplitude-phase consistency.Structure is complicated for existing receiver circuit, technical difficulty is high, poor reliability, the width phase one between receiving channel
Cause property precision is difficult to ensure, is unable to satisfy the measurement accuracy requirement of interferometric phase.
Summary of the invention
It is complicated for receiver circuit in the prior art, technical difficulty is high, poor reliability, amplitude and phase between receiving channel
The problems such as consistency precision is low, the invention proposes a kind of biradical Spaceborne SAR System multichannel receiver design method and device,
The amplitude and phase characteristic of each receiving channel are adjusted respectively, to realize the high-precision amplitude-phase consistency between each receiving channel.
The present invention specifically adopts the following technical scheme that
A kind of biradical Spaceborne SAR System multichannel receiver design method and device, including eight tunnel receiving channels,
Whole is in three-decker, and bottom is power conversion unit, is connected by the control allocation unit of low frequency blind-mating connector and middle layer
It connects, upper layer passes through SMP interconnection composition with backup units are intersected for receiving unit.Each road receiving channel is unified to be converted by power supply
Unit and control allocation unit provide operation level and serial control signal.Every road radio frequency reception channel can complete independently radar
The functions such as the low noise amplification of echo-signal, MGC, intermediate frequency amplification and balanced phase-shift compensation output, every two-way receiving channel via
Radar data shaper progress Digital Signal Processing is given in output after intersecting backup.
Preferably, each section in the biradical Spaceborne SAR System multichannel receiver design method and the device course of work
Action relationships are as follows:
S1: the primary power source that radar distributor is supplied to receiver is converted to receiving unit work and used by power conversion unit
Secondary power supply；
S2: active and standby totally two groups of clocks, latch and the locking difference that control allocation unit provides satellite-borne SAR supervision timer
Signal distributes to eight tunnels, 422 differential receiver, every public one group of difference control signal of four receiving channels, Data differential signal
Each receiving channel independently uses；
S3: receiving unit includes eight independent radio frequency reception channels, and each radio frequency reception channel includes that clipping locking is opened
Pass, low-noise amplifier, bandpass filter, first order numerical-control attenuator (MGC1), first order intermediate frequency amplifier, second level dual control
Attenuator (MGC2), second level intermediate frequency amplifier, temperature compensation attenuator, third level intermediate frequency amplifier, balanced phase shifter, in the fourth stage
Audio amplifier, low-pass filter；
S4: intersect backup units using function point/function sum form, every two-way receiving channel is defeated via backup units are intersected
Out, power divider circuit is designed using microstrip circuit, while having intersected built in backup units RC balanced device.
Preferably, it in the S3, specifically includes:
S301: the radio frequency reception channel is the modularized design of individual packages, and circuit design uses microwave assembly technology, real
Show the interconnection of inner space radio frequency chip, pcb board, low frequency control circuit, power supply and low frequency signal pass through punching electricity between each layer
Hold interconnection, radiofrequency signal is interconnected by glass insulator and gold wire bonding.Radio circuit is interconnected according to function division at Multicarity,
High-frequency circuit and low-frequency channel are separated by partition wall, and the consistency of performance of each receiving channel is relatively reliable, each interchannel have it is high every
From degree；
S302: the clipping latch switch is in blocking when antenna emits, and power capacity is greater than 10W, prevents
Leakage signal when receiving channel is emitted by antenna is burnt；
S303: the low-noise amplifier amplifies faint echo-signal, improves the signal-to-noise ratio of echo-signal；
S304: the bandpass filter filters out the clutter component outside passband, prevents spectral aliasing；
S305: the serial control signal control that the two-stage numerical-control attenuator (MGC1 and MGC2) is provided by control allocation unit
Pad value processed, adjustable attenuation range are 0~62dB, widen the dynamic range of receiving channel；
S306: it is described equilibrium phase shifter be made of Microstrip equalizer and phase shifter, by debugging balanced device impedance matching and
The amplitude and phase for adjusting each receiving channel of phase shifter length compensation, guarantee the high-precision amplitude-phase consistency of each interchannel.
Preferably, it in the S4, specifically includes:
S401: the function divides function clutch to be made of a pair of of microstrip power divider, and the impedance matching by adjusting power splitter compensates
The amplitude and phase of receiving channel complete the intersection backup of two-way radiofrequency signal；
S402: the RC balanced device is composed in parallel by resistance and capacitor, by adjust RC balanced device resonance frequency and
Weigh slope, compensates the amplitude of radio frequency reception channel and with interior fluctuating.
8 tunnels are realized the invention has the following beneficial effects: Spaceborne SAR System Multichannel radar receiver of the invention to penetrate
Low noise amplification, MGC, radio frequency amplification and the intersection backup output of frequency signal.Pass through the balanced phase shifter to radio frequency reception channel
And the microstrip power divider of intersection backup units is compensated with RC balanced device, inter-channel level consistency reaches 0.4dB, phase
Consistency reaches 2 °, realizes high-precision amplitude-phase consistency, meets the measurement accuracy requirement of interferometric phase, is New System high score
The imaging effect of resolution, wide swath satellite-borne SAR technology provides important guarantee.
Detailed description of the invention
Fig. 1 is biradical Spaceborne SAR System Multichannel radar receiver block diagram of the invention；
Fig. 2 is radio frequency reception channel functional block diagram of the invention；
Fig. 3 is intersection backup units functional block diagram of the invention.
Specific embodiment
A specific embodiment of the invention is described further below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of biradical Spaceborne SAR System multichannel receiver design method and device, including eight tunnels receive
Channel, entirety are in three-decker, and bottom is power conversion unit, are distributed by the control of low frequency blind-mating connector and middle layer
Unit connection, upper layer pass through SMP interconnection composition with backup units are intersected for receiving unit.Each road receiving channel is unified by electricity
Source converting unit and control allocation unit provide operation level and serial control signal.Every road radio frequency reception channel can be independent complete
At function such as low noise amplification, MGC, the intermediate frequency amplification of the radar echo signal returned by microwave combination and balanced phase-shift compensation outputs
Can, every two-way receiving channel gives radar data shaper progress Digital Signal Processing via output after intersecting backup units.
The movement of each section is closed in the biradical Spaceborne SAR System multichannel receiver design method and the device course of work
System are as follows:
S1: the primary power source that radar distributor is supplied to receiver is converted to receiving unit work and used by power conversion unit
Secondary power supply；
S2: active and standby totally two groups of clocks, latch and the locking difference that control allocation unit provides satellite-borne SAR supervision timer
Signal distributes to eight tunnels, 422 differential receiver, every public one group of difference control signal of four receiving channels, Data differential signal
Each receiving channel independently uses；
S3: receiving unit includes eight independent radio frequency reception channels, and each radio frequency reception channel includes that clipping locking is opened
Pass, low-noise amplifier, bandpass filter, first order numerical-control attenuator (MGC1), first order intermediate frequency amplifier, second level dual control
Attenuator (MGC2), second level intermediate frequency amplifier, temperature compensation attenuator, third level intermediate frequency amplifier, balanced phase shifter, in the fourth stage
Audio amplifier, low-pass filter；
S4: intersect backup units using function point/function sum form, every two-way receiving channel is defeated via backup units are intersected
Out, power divider circuit is designed using microstrip circuit, while having intersected built in backup units RC balanced device.
As shown in Fig. 2, the radio frequency reception channel specifically includes:
S301: the radio frequency reception channel is the modularized design of individual packages, and circuit design uses microwave assembly technology, real
Show the interconnection of inner space radio frequency chip, pcb board, low frequency control circuit, power supply and low frequency signal pass through punching electricity between each layer
Hold interconnection, radiofrequency signal is interconnected by glass insulator and with gold wire bonding.Radio circuit is mutual at Multicarity according to function division
Connection, high-frequency circuit and low-frequency channel are separated by partition wall, and the consistency of performance of each receiving channel is relatively reliable, and each interchannel has height
Isolation；
S302: the clipping latch switch is in blocking when antenna emits, and power capacity is greater than 10W, prevents
Leakage signal when receiving channel is emitted by antenna is burnt；
S303: the low-noise amplifier amplifies faint echo-signal, improves the signal-to-noise ratio of echo-signal；
S304: the bandpass filter filters out the clutter component outside passband, prevents spectral aliasing；
S305: the serial control signal control that the two-stage numerical-control attenuator (MGC1 and MGC2) is provided by control allocation unit
Pad value processed, adjustable attenuation range are 0~62dB, widen the dynamic range of receiving channel；
S306: it is described equilibrium phase shifter be made of Microstrip equalizer and phase shifter, by debugging balanced device impedance matching and
The amplitude and phase for adjusting each receiving channel of phase shifter length compensation, guarantee the high-precision amplitude-phase consistency of each interchannel.
As shown in figure 3, the intersection backup units specifically include:
S401: the function divides function clutch to be made of a pair of of microstrip power divider, and the impedance matching by adjusting power splitter compensates
The amplitude and phase of receiving channel complete the intersection backup of two-way radiofrequency signal；
S402: the RC balanced device is composed in parallel by resistance and capacitor, by adjust RC balanced device resonance frequency and
Weigh slope, compensates the amplitude of radio frequency reception channel and with interior fluctuating；
Spaceborne SAR System Multichannel radar receiver of the invention realize the low noise amplifications of 8 tunnel radiofrequency signals, MGC,
Radio frequency amplification and intersection backup output.Pass through the micro-strip function of balanced phase shifter and intersection backup units to radio frequency reception channel
Device is divided to compensate with RC balanced device, inter-channel level consistency reaches 0.4dB, and phase equalization reaches 2 °, realizes high-precision
The amplitude-phase consistency of degree meets the measurement accuracy requirement of interferometric phase, is New System high-resolution, wide swath satellite-borne SAR skill
The imaging effect of art provides important guarantee.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of biradical Spaceborne SAR System multichannel receiver design method, which is characterized in that including eight tunnel receiving channels,
Whole is in three-decker, and bottom is power conversion unit, is connected by the control allocation unit of low frequency blind-mating connector and middle layer
It connects, upper layer interconnects composition by SMP with backup units are intersected for receiving unit, and each road receiving channel is unified to be converted by power supply
Unit and control allocation unit provide operation level and serial control signal, and every road radio frequency reception channel can complete independently radar
The functions such as the low noise amplification of echo-signal, MGC, intermediate frequency amplification and balanced phase-shift compensation output, every two-way receiving channel via
Radar data shaper progress Digital Signal Processing is given in output after intersecting backup units.
2. a kind of biradical Spaceborne SAR System multichannel receiver design method according to claim 1, it is characterised in that:
The action relationships of each section in the biradical Spaceborne SAR System multichannel receiver design method course of work are as follows:
S1: the primary power source that radar distributor is supplied to receiver is converted to the two of receiving unit work by power conversion unit
Secondary source；
S2: active and standby totally two groups of clocks, latch and the locking difference letter that control allocation unit provides satellite-borne SAR supervision timer
Number, distribute to eight tunnels, 422 differential receiver, every public one group of difference control signal of four receiving channels, Data differential signal is every
A receiving channel independently uses；
S3: receiving unit includes eight independent radio frequency reception channels, and each radio frequency reception channel includes clipping latch switch, low
Noise amplifier, bandpass filter, first order numerical-control attenuator (MGC1), first order intermediate frequency amplifier, the decaying of second level dual control
Device (MGC2), second level intermediate frequency amplifier, temperature compensation attenuator, third level intermediate frequency amplifier, balanced phase shifter, fourth stage intermediate frequency are put
Big device, low-pass filter；
S4: intersect backup units using function point/function sum form, every two-way receiving channel is exported via backup units are intersected, function
Divide device circuit to design using microstrip circuit, while intersecting built in backup units RC balanced device.
3. a kind of biradical Spaceborne SAR System multichannel receiver design method according to claim 2, which is characterized in that
In the S3, specifically include:
S301: the radio frequency reception channel is the modularized design of individual packages, and circuit design uses microwave assembly technology, in realization
The interconnection of portion space radio frequency chip, pcb board, low frequency control circuit, power supply and low frequency signal are mutual by feedthrough capacitor between each layer
Even, radiofrequency signal is interconnected by glass insulator and gold wire bonding, and radio circuit is interconnected according to function division at Multicarity, high frequency
Circuit and low-frequency channel are separated by partition wall, and the consistency of performance of each receiving channel is relatively reliable, and each interchannel has high-isolation；
S302: the clipping latch switch is in blocking when antenna emits, and power capacity is greater than 10W, prevents from receiving
Leakage signal when channel is emitted by antenna is burnt；
S303: the low-noise amplifier amplifies faint echo-signal, improves the signal-to-noise ratio of echo-signal；
S304: the bandpass filter filters out the clutter component outside passband, prevents spectral aliasing；
S305: the serial control signal control that the two-stage numerical-control attenuator (MGC1 and MGC2) is provided by control allocation unit declines
Depreciation, adjustable attenuation range are 0~62dB, widen the dynamic range of receiving channel；
S306: the equilibrium phase shifter is made of Microstrip equalizer and phase shifter, passes through debugging balanced device impedance matching and adjusting
The amplitude and phase of each receiving channel of phase shifter length compensation guarantee the high-precision amplitude-phase consistency of each interchannel.
4. a kind of biradical Spaceborne SAR System multichannel receiver design method according to claim 2, which is characterized in that
In the S4, specifically include:
S401: the function divides function clutch to be made of a pair of of microstrip power divider, and the impedance matching by adjusting power splitter, which compensates, to be received
The amplitude and phase in channel complete the intersection backup of two-way radiofrequency signal；
S402: the RC balanced device is composed in parallel by resistance and capacitor, by adjust RC balanced device resonance frequency with it is balanced oblique
Rate compensates the amplitude of radio frequency reception channel and with interior fluctuating.
5. a kind of biradical Spaceborne SAR System multichannel receiver designs device, which is characterized in that including eight tunnel receiving channels,
Whole is in three-decker, and bottom is power conversion unit, is connected by the control allocation unit of low frequency blind-mating connector and middle layer
It connects, upper layer interconnects composition by SMP with backup units are intersected for receiving unit, and each road receiving channel is unified to be converted by power supply
Unit and control allocation unit provide operation level and serial control signal, and every road radio frequency reception channel can complete independently radar
The functions such as the low noise amplification of echo-signal, MGC, intermediate frequency amplification and balanced phase-shift compensation output, every two-way receiving channel via
Radar data shaper progress Digital Signal Processing is given in output after intersecting backup units.
6. a kind of biradical Spaceborne SAR System multichannel receiver according to claim 5 designs device, it is characterised in that:
The action relationships of each section in the biradical Spaceborne SAR System multichannel receiver design device course of work are as follows:
S1: the primary power source that radar distributor is supplied to receiver is converted to the two of receiving unit work by power conversion unit
Secondary source；
S2: active and standby totally two groups of clocks, latch and the locking difference letter that control allocation unit provides satellite-borne SAR supervision timer
Number, distribute to eight tunnels, 422 differential receiver, every public one group of difference control signal of four receiving channels, Data differential signal is every
A receiving channel independently uses；
S3: receiving unit includes eight independent radio frequency reception channels, and each radio frequency reception channel includes clipping latch switch, low
Noise amplifier, bandpass filter, first order numerical-control attenuator (MGC1), first order intermediate frequency amplifier, the decaying of second level dual control
Device (MGC2), second level intermediate frequency amplifier, temperature compensation attenuator, third level intermediate frequency amplifier, balanced phase shifter, fourth stage intermediate frequency are put
Big device, low-pass filter；
S4: intersect backup units using function point/function sum form, every two-way receiving channel is exported via backup units are intersected, function
Divide device circuit to design using microstrip circuit, while intersecting built in backup units RC balanced device.
7. a kind of biradical Spaceborne SAR System multichannel receiver according to claim 6 designs device, which is characterized in that
In the S3, specifically include:
S301: the radio frequency reception channel is the modularized design of individual packages, and circuit design uses microwave assembly technology, in realization
The interconnection of portion space radio frequency chip, pcb board, low frequency control circuit, power supply and low frequency signal are mutual by feedthrough capacitor between each layer
Even, radiofrequency signal is interconnected by glass insulator and gold wire bonding, and radio circuit is interconnected according to function division at Multicarity, high frequency
Circuit and low-frequency channel are separated by partition wall, and the consistency of performance of each receiving channel is relatively reliable, and each interchannel has high-isolation；
S302: the clipping latch switch is in blocking when antenna emits, and power capacity is greater than 10W, prevents from receiving
Leakage signal when channel is emitted by antenna is burnt；
S303: the low-noise amplifier amplifies faint echo-signal, improves the signal-to-noise ratio of echo-signal；
S304: the bandpass filter filters out the clutter component outside passband, prevents spectral aliasing；
S305: the serial control signal control that the two-stage numerical-control attenuator (MGC1 and MGC2) is provided by control allocation unit declines
Depreciation, adjustable attenuation range are 0~62dB, widen the dynamic range of receiving channel；
S306: the equilibrium phase shifter is made of Microstrip equalizer and phase shifter, passes through debugging balanced device impedance matching and adjusting
The amplitude and phase of each receiving channel of phase shifter length compensation guarantee the high-precision amplitude-phase consistency of each interchannel.
8. a kind of biradical Spaceborne SAR System multichannel receiver according to claim 6 designs device, which is characterized in that
In the S4, specifically include:
S401: the function divides function clutch to be made of a pair of of microstrip power divider, and the impedance matching by adjusting power splitter, which compensates, to be received
The amplitude and phase in channel complete the intersection backup of two-way radiofrequency signal；
S402: the RC balanced device is composed in parallel by resistance and capacitor, by adjust RC balanced device resonance frequency with it is balanced oblique
Rate compensates the amplitude of radio frequency reception channel and with interior fluctuating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690775.9A CN110488284B (en) | 2019-07-29 | 2019-07-29 | Design method and device for multi-channel receiver of double-base satellite-borne SAR system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910690775.9A CN110488284B (en) | 2019-07-29 | 2019-07-29 | Design method and device for multi-channel receiver of double-base satellite-borne SAR system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110488284A true CN110488284A (en) | 2019-11-22 |
| CN110488284B CN110488284B (en) | 2021-08-10 |
Family
ID=68548409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910690775.9A Active CN110488284B (en) | 2019-07-29 | 2019-07-29 | Design method and device for multi-channel receiver of double-base satellite-borne SAR system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110488284B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111769886A (en) * | 2020-07-29 | 2020-10-13 | 中国电子科技集团公司第十四研究所 | General radar state data acquisition equipment and method |
| CN112383863A (en) * | 2020-11-08 | 2021-02-19 | 西北工业大学 | Multichannel sonobuoy signal preprocessing system and method |
| CN114070349A (en) * | 2022-01-18 | 2022-02-18 | 成都雷电微力科技股份有限公司 | Double-frequency composite high-power brick type T/R assembly |
| CN115561711A (en) * | 2022-11-17 | 2023-01-03 | 中国科学院空天信息创新研究院 | Multi-channel cold backup method applied to synthetic aperture radar system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101166989B (en) * | 2005-04-28 | 2012-08-08 | 皇家飞利浦电子股份有限公司 | Method and circuit arrangement for operating multi-channel transmit/receive antenna devices |
| CN108206673A (en) * | 2016-12-20 | 2018-06-26 | 中国航天科工集团八五研究所 | A kind of 6GHz is to 18GHz broadbands frequency-variable module |
| CN208433964U (en) * | 2018-05-24 | 2019-01-25 | 上海航天电子通讯设备研究所 | A kind of spaceborne miniaturization C-band binary channels T/R component |
| CN110018455B (en) * | 2019-04-11 | 2023-08-08 | 上海卫星工程研究所 | Amplitude-phase consistency error calibration measurement method between satellite-borne SAR imaging receiving channels |
-
2019
- 2019-07-29 CN CN201910690775.9A patent/CN110488284B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| GUODONG JIN ET AL.: "Nonlinear Frequency Modulation Signal Generator in LT-1", 《IEEE》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111769886A (en) * | 2020-07-29 | 2020-10-13 | 中国电子科技集团公司第十四研究所 | General radar state data acquisition equipment and method |
| CN112383863A (en) * | 2020-11-08 | 2021-02-19 | 西北工业大学 | Multichannel sonobuoy signal preprocessing system and method |
| CN114070349A (en) * | 2022-01-18 | 2022-02-18 | 成都雷电微力科技股份有限公司 | Double-frequency composite high-power brick type T/R assembly |
| CN114070349B (en) * | 2022-01-18 | 2022-04-12 | 成都雷电微力科技股份有限公司 | Double-frequency composite high-power brick type T/R assembly |
| CN115561711A (en) * | 2022-11-17 | 2023-01-03 | 中国科学院空天信息创新研究院 | Multi-channel cold backup method applied to synthetic aperture radar system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110488284B (en) | 2021-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110488284A (en) | A kind of biradical Spaceborne SAR System multichannel receiver design method and device | |
| CN102156139B (en) | Method and system for measuring passive intermodulation generation point of microwave device by using electromagnetic wave phase | |
| CN110149119A (en) | Switch at high speed radio frequency reception channel group delay coherence method | |
| US11946994B2 (en) | Synchronization of unstable signal sources for use in a phase stable instrument | |
| CN109787646A (en) | A kind of 6-18GHz Phase amplitude-matched down conversion components | |
| CN109546280A (en) | A kind of broadband compact RF power divider | |
| CN203872167U (en) | Millimeter wave integrated transmit-receive channel | |
| CN102290628A (en) | Compact four-way power distributing and synthesizing structure | |
| Ku et al. | 75–85 GHz flip-chip phased array RFIC with simultaneous 8-transmit and 8-receive paths for automotive radar applications | |
| US9413050B2 (en) | Distributedly modulated capacitors for non-reciprocal components | |
| US4918684A (en) | Device for the measurement of intermodulation products of a receiver system | |
| CN202940329U (en) | Single-aperture Beidou satellite navigation receiving device anti-interference antenna | |
| CN103873157A (en) | Spectrum analyzer having zero frequency inhibition function | |
| CN109521490A (en) | A kind of millimeter wave array radiation meter front end of achievable analog beam figuration | |
| CN111082831A (en) | Satellite-borne synchronous transmitting and receiving device and signal processing method | |
| CN201957009U (en) | Multi-channel integrated equiphase sum-and-difference receiving device | |
| CN201601665U (en) | Phase-locked difference frequency output frequency synthesizer | |
| EP0219991A2 (en) | R F interferometer | |
| CN104734792A (en) | Hybrid two-channel millimeter wave attenuation measuring method and system | |
| CN116859341A (en) | Ultra-wideband GaAs amplitude-phase control receiving and transmitting front-end chip | |
| CN111371470B (en) | Calibration noise source distribution network device | |
| CN113163575A (en) | Multilayer board microwave power circuit | |
| CN102185579A (en) | Micro-wave linear analog phase modulator at X frequency range | |
| CN109412621B (en) | Four-channel independent amplitude-stabilized local oscillator power dividing device and method | |
| CN219611744U (en) | Three-channel injection type matching circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |