CN109343012A - Source scaler for the calibration of dual station SAR system - Google Patents
Source scaler for the calibration of dual station SAR system Download PDFInfo
- Publication number
- CN109343012A CN109343012A CN201811187664.8A CN201811187664A CN109343012A CN 109343012 A CN109343012 A CN 109343012A CN 201811187664 A CN201811187664 A CN 201811187664A CN 109343012 A CN109343012 A CN 109343012A
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- Prior art keywords
- sar
- transmitting
- antenna
- receiving
- receiving antenna
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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
- G01S13/89—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
- 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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
-
- 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
- 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
- G01S13/9076—Polarimetric features in SAR
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- 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)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Present disclose provides a kind of source scalers for the calibration of dual station SAR system, and dual station SAR system includes: SAR transmitter, SAR transmitting antenna, SAR receiver and SAR receiving antenna；Source scaler includes: receiving antenna, receives the signal that SAR transmitter is emitted by SAR transmitting antenna；Transmitting antenna, transmitting rate-aided signal pass through SAR receiving antenna to SAR receiver；Receiving antenna servo, the direction for receiving antenna are adjusted, and receiving antenna is made to be directed toward SAR transmitting antenna；Transmitting antenna servo, the direction for transmitting antenna are adjusted, and transmitting antenna is made to be directed toward SAR receiving antenna；Numerical control unit, the direction for controlling and receiving antenna servo and transmitting antenna servo are adjusted；Radio frequency unit is sent to transmitting antenna after carrying out signal processing to the signal that receiving antenna receives.Receiving antenna and transmitting antenna can carry out independent direction adjusting in the disclosure, guarantee the stability of the source scaler RCS value at different dual station angles, are suitable for dual station SAR system in the case of different dual station angles are prepared and calibrate.
Description
Technical field
This disclosure relates to field of radar more particularly to a kind of source scaler for the calibration of dual station SAR system.
Background technique
It stands synthetic aperture radar (SAR) relative to single, bi-static SAR has stronger detection to Stealthy Target
And recognition capability, the bistatic radar sectional area (RCS) of target can be obtained, increasingly by the care of domestic and international application department and
Pay attention to.However, the research of bi-static SAR calibration technology is relatively fewer, and due to without dual station synthetic aperture in orbit
Radar, corresponding dual station targeting device are even more rare report.
SAR targeting device includes active targeting device and passive targeting device, and active targeting device refers mainly to active calibration
Device, passive targeting device mainly include trihedral corner reflector, Dihedral Corner Reflectors, metal plate and metallic reflection disk etc..It is single
The research of SAR system of standing targeting device is more mature, but it is difficult to directly apply to the calibration of dual station SAR system, according to reports, three
Face angle reflector and dihedral angle corner reflector are unsuitable for calibrating for dual station SAR, and metal plate and metallic reflection disk can only
Dual station SAR system for dual station angle very little is calibrated, for dual station polarization SAR system, it more difficult to which it is suitable passive fixed to find
Marking device.Source scaler has many advantages, such as that small in size, radar cross section is high, radar cross section is adjustable, calibrates often as SAR
The first choice of equipment, the Spaceborne SAR System emitted both at home and abroad nearly all have developed corresponding source scaler and carry out In-flight calibration
It is difficult to the calibration of dual station SAR system for the source scaler of single station SAR design, it is active fixed by increasing single station
Mark device dual-mode antenna beam angle can make that it is suitable for dual station SAR calibrations.But increase beam angle can bring and ask as follows
Topic: firstly, beam angle increase necessarily causes antenna gain to decline, it is difficult to obtain higher radar cross section.Secondly, wave beam is wide
Degree, which increases the isolation between antennas that will lead between transmitting-receiving, to be reduced, and in order to avoid system self-excitation, system gain is necessarily reduced, active fixed
Mark device radar cross section can also reduce, it is difficult to provide higher radar cross section.
Summary of the invention
(1) technical problems to be solved
Present disclose provides a kind of source scalers for the calibration of dual station SAR system, at least partly to solve the above institute
The technical issues of proposition.
(2) technical solution
According to one aspect of the disclosure, a kind of source scaler for the calibration of dual station SAR system is provided, it is described double
SAR system of standing includes: SAR transmitter, SAR transmitting antenna, SAR receiver and SAR receiving antenna；Wherein, source scaler packet
Include: receiving antenna receives the SAR transmitter and passes through the signal that the SAR transmitting antenna emits；Transmitting antenna, transmitting are determined
Mark signal is received by the SAR receiving antenna to the SAR receiver；Receiving antenna servo, for the receiving antenna
It is directed toward and adjusts, the receiving antenna is made to be directed toward the SAR transmitting antenna；Transmitting antenna servo, the finger for the transmitting antenna
To adjusting, the transmitting antenna is made to be directed toward the SAR receiving antenna；Numerical control unit controls the receiving antenna servo and described
The direction of transmitting antenna servo is adjusted；Radio frequency unit is sent after carrying out signal processing to the signal that the receiving antenna receives
To the transmitting antenna；Power distribution unit, for the receiving antenna servo, the transmitting antenna servo, the numerical control unit and institute
State radio frequency unit power supply.
Preferably, the radio frequency unit carries out four kinds of polarimetric calibrations, including HH polarimetric calibration, HV polarization by switch control
Calibration, VH polarimetric calibration, VV polarimetric calibration；When the source scaler carries out HH polarimetric calibration, closes and receive V polarized signal
Switch closes the switch of transmitting V signal, opens the switch for receiving H polarized signal, opens the switch of transmitting H polarized signal；It is described
When source scaler carries out HV polarimetric calibration, the switch for receiving V polarized signal is closed, closes the switch of transmitting H signal, unlatching connects
The switch of H polarized signal is received, the switch of transmitting V polarized signal is opened；When the source scaler carries out VH polarimetric calibration, close
The switch of H polarized signal is received, the switch of transmitting V signal is closed, opens the switch for receiving V polarized signal, opens transmitting H polarization
The switch of signal；When the source scaler carries out VV polarimetric calibration, the switch for receiving H polarized signal is closed, closes transmitting H letter
Number switch, open receive V polarized signal switch, open transmitting V polarized signal switch.
Preferably, the numerical control unit further include: start by set date equipment, according to the configuring condition of the dual station SAR system,
The receiving antenna servo and transmitting antenna servo rotation are controlled, receiving antenna is made to be directed toward SAR transmitting antenna, transmitting antenna
It is directed toward SAR receiving antenna.
Preferably, the direction adjusting of the receiving antenna servo includes: that the adjusting of orientation direction and pitching are adjusted to direction.
Preferably, the direction adjusting of the transmitting antenna servo includes: that the adjusting of orientation direction and pitching are adjusted to direction.
Preferably, the receiving antenna and the transmitting antenna are high-isolation dual polarization antenna.
Preferably, the power distribution unit is wind energy-solar energy complementary power supply system.
(3) beneficial effect
It can be seen from the above technical proposal that the disclosure for dual station SAR system source scaler at least have it is following
One of beneficial effect or in which a part:
(1) each unit constitutes an organic whole in the disclosure, is not required to individually be assembled before every task.
(2) the receiving antenna servo and transmitting antenna servo in the disclosure can carry out receiving antenna and transmitting antenna
Independent direction is adjusted, and ensure that the stability of the source scaler RCS value at different dual station angles, is suitable for different dual station
Dual station SAR system in the case of angle is prepared is calibrated.
(3) receiving antenna and the transmitting antenna use high-isolation dual polarization antenna, pass through the switch in radio frequency unit
Control may be implemented tetra- kinds of dual station SAR system HH, HV, VH, VV polarization working methods calibration, overcome passive targeting device without
Method realizes the shortcomings that dual station SAR difference polarized state calibration.
(4) there is the numerical control unit of the disclosure start by set date and AutoPlay function periodically to be opened according to satellite Covering time
Dynamic equipment simultaneously carries out automatic running, realizes that SAR system is calibrated in unattended situation, substantially increases ease of use.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the first embodiment of the present disclosure for the source scaler of dual station SAR system.
Specific embodiment
Present disclose provides a kind of source scaler for the calibration of dual station SAR system, dual station SAR system includes: SAR hair
Penetrate machine, SAR transmitting antenna, SAR receiver and SAR receiving antenna；Source scaler includes: receiving antenna, receives SAR transmitter
The signal emitted by SAR transmitting antenna；Transmitting antenna, transmitting rate-aided signal pass through SAR receiving antenna to SAR receiver；It connects
Antenna servo is received, the direction for receiving antenna is adjusted, and receiving antenna is made to be directed toward SAR transmitting antenna；Transmitting antenna servo, is used for
The direction of transmitting antenna is adjusted, and transmitting antenna is made to be directed toward SAR receiving antenna；Numerical control unit controls and receives antenna servo and transmitting
The direction of antenna servo is adjusted；Radio frequency unit is sent to transmitting day after carrying out signal processing to the signal that receiving antenna receives
Line.Receiving antenna and transmitting antenna can carry out independent direction adjusting in the disclosure, guarantee active at different dual station angles
The stability of scaler RCS value is suitable for dual station SAR system in the case of different dual station angles are prepared and calibrates.
For the purposes, technical schemes and advantages of the disclosure are more clearly understood, below in conjunction with specific embodiment, and reference
The disclosure is further described in attached drawing.
Disclosure some embodiments will be done referring to appended attached drawing in rear and more comprehensively describe to property, some of but not complete
The embodiment in portion will be shown.In fact, the various embodiments of the disclosure can be realized in many different forms, and should not be construed
To be limited to illustrated embodiment；Relatively, these embodiments are provided so that the disclosure meets applicable legal requirement.
In first exemplary embodiment of the disclosure, provide a kind of for the active fixed of dual station SAR system calibration
Mark device.Fig. 1 is structural schematic diagram of the first embodiment of the present disclosure for the source scaler of dual station SAR system calibration.Such as Fig. 1 institute
Show,
Dual station SAR system includes: SAR transmitter, SAR transmitting antenna, SAR receiver and SAR receiving antenna；The disclosure mentions
Source scaler out includes: receiving antenna, transmitting antenna, receiving antenna servo, transmitting antenna servo, numerical control unit, radio frequency
Unit and power distribution unit；Receiving antenna receives the signal that SAR transmitter is emitted by SAR transmitting antenna；Transmitting antenna transmitting is fixed
Signal is marked, SAR receiver receives day by SAR and receives rate-aided signal；Direction of the receiving antenna servo for receiving antenna is adjusted,
Receiving antenna is set to be directed toward SAR transmitting antenna；Direction of the transmitting antenna servo for transmitting antenna is adjusted, and is directed toward transmitting antenna
SAR receiving antenna；Numerical control unit controls and receives antenna servo and the direction of transmitting antenna servo is adjusted；Radio frequency unit is to reception day
The signal that line receives is sent to transmitting antenna after carrying out signal processing；Power distribution unit is receiving antenna servo, transmitting antenna is watched
Clothes, numerical control unit and radio frequency unit power supply.
Receiving antenna and transmitting antenna are high-isolation dual polarization antenna.Radio frequency unit can be with by switch control simultaneously
Carry out four kinds of polarimetric calibrations, including HH polarimetric calibration, HV polarimetric calibration, VH polarimetric calibration, VV polarimetric calibration；It is fixed to carry out HH polarization
When mark, the switch for receiving V polarized signal is closed, closes the switch of transmitting V signal, opens the switch for receiving H polarized signal, is opened
Emit the switch of H polarized signal；When carrying out HV polarimetric calibration, the switch for receiving V polarized signal is closed, closes transmitting H signal
Switch opens the switch for receiving H polarized signal, opens the switch of transmitting V polarized signal；When carrying out VH polarimetric calibration, closing is connect
The switch of H polarized signal is received, the switch of transmitting V signal is closed, opens the switch for receiving V polarized signal, opens transmitting H polarization letter
Number switch；When carrying out VV polarimetric calibration, the switch for receiving H polarized signal is closed, closes the switch of transmitting H signal, unlatching connects
The switch of V polarized signal is received, the switch of transmitting V polarized signal is opened.Receiving antenna and transmitting antenna are all made of height in the disclosure
Isolation dual polarized antenna, and tetra- kinds of dual station SAR system HH, HV, VH, VV polarization are realized by the switch control in radio frequency unit
The calibration of working method overcomes the shortcomings that passive targeting device cannot achieve the calibration of dual station SAR system difference polarized state.
As a kind of specific embodiment, the signal processing master for the signal progress that radio frequency unit receives receiving antenna
To include amplify, filter, being delayed, the processing such as gain calibration.
As a kind of specific embodiment, power distribution unit is wind energy-solar energy complementary power supply system, both can be using too
Sun can power and can use powered by wind energy, avoid using storage battery power supply need frequent charge-carrying belt come problem.
As a kind of specific embodiment, numerical control unit further include: start by set date equipment, according to dual station SAR system
Configuring condition controls and receives antenna servo and the rotation of transmitting antenna servo, receiving antenna is made to be directed toward SAR transmitting antenna, emits day
Line is directed toward SAR receiving antenna.According to the running parameter of SAR system and satellite Covering time, start by set date source scaler device
And guarantee source scaler automatic running.
As a kind of specific embodiment, the direction adjusting of receiving antenna servo includes: that orientation is directed toward adjusting and bows
It faces upward to adjusting is directed toward, source scaler receiving antenna high-precision is made to be directed toward SAR system transmitting antenna.The direction of transmitting antenna servo
Adjusting includes: that orientation is directed toward adjusting and pitching to adjusting is directed toward, and makes source scaler transmitting antenna high-precision direction SAR system
Receiving antenna.
So far, attached drawing is had been combined the embodiment of the present disclosure is described in detail.It should be noted that in attached drawing or saying
In bright book text, the implementation for not being painted or describing is form known to a person of ordinary skill in the art in technical field, and
It is not described in detail.In addition, the above-mentioned definition to each element and method be not limited in mentioning in embodiment it is various specific
Structure, shape or mode, those of ordinary skill in the art simply can be changed or be replaced to it.
According to above description, those skilled in the art should be used for the active calibration of dual station SAR system calibration to the disclosure
Device has clear understanding.
In conclusion the disclosure, which provides one kind, can be used for bi-static SAR (SAR) system radiation calibration and polarization
The source scaler of calibration can carry out independent direction to receiving antenna and transmitting antenna and adjust, ensure that in different dual station
The stability of source scaler RCS value in the case of angle, the dual station SAR system calibration in the case of being prepared suitable for different dual station angles.
It should also be noted that, the direction term mentioned in embodiment, for example, "upper", "lower", "front", "rear", " left side ",
" right side " etc. is only the direction with reference to attached drawing, not is used to limit the protection scope of the disclosure.Through attached drawing, identical element by
Same or similar appended drawing reference indicates.When may cause understanding of this disclosure and cause to obscure, conventional structure will be omitted
Or construction.
And the shape and size of each component do not reflect actual size and ratio in figure, and only illustrate the embodiment of the present disclosure
Content.In addition, in the claims, any reference symbol between parentheses should not be configured to the limit to claim
System.
It unless there are known entitled phase otherwise anticipates, the numerical parameter in this specification and appended claims is approximation, energy
Enough bases pass through the resulting required characteristic changing of content of this disclosure.Specifically, all be used in specification and claim
The middle content for indicating composition, the number of reaction condition etc., it is thus understood that repaired by the term of " about " in all situations
Decorations.Under normal circumstances, the meaning expressed refers to include by specific quantity ± 10% variation in some embodiments, some
± 5% variation in embodiment, ± 1% variation in some embodiments, in some embodiments ± 0.5% variation.
Furthermore word "comprising" does not exclude the presence of element or step not listed in the claims.It is located in front of the element
Word "a" or "an" does not exclude the presence of multiple such elements.
The word of ordinal number such as " first ", " second ", " third " etc. used in specification and claim, with modification
Corresponding element, itself is not meant to that the element has any ordinal number, does not also represent the suitable of a certain element and another element
Sequence in sequence or manufacturing method, the use of those ordinal numbers are only used to enable an element and another tool with certain name
Clear differentiation can be made by having the element of identical name.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each open aspect,
Above in the description of the exemplary embodiment of the disclosure, each feature of the disclosure is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
The disclosure of shield requires features more more than feature expressly recited in each claim.More precisely, as following
Claims reflect as, open aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself
All as the separate embodiments of the disclosure.
Particular embodiments described above has carried out further in detail the purpose of the disclosure, technical scheme and beneficial effects
Describe in detail it is bright, it is all it should be understood that be not limited to the disclosure the foregoing is merely the specific embodiment of the disclosure
Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the disclosure
Within the scope of shield.
Claims (7)
1. a kind of source scaler for the calibration of dual station SAR system, the dual station SAR system includes: SAR transmitter, SAR hair
Penetrate antenna, SAR receiver and SAR receiving antenna；Wherein, source scaler includes:
Receiving antenna receives the SAR transmitter and passes through the signal that the SAR transmitting antenna emits；
The rate-aided signal of transmitting antenna, transmitting is received by the SAR receiving antenna to the SAR receiver；
Receiving antenna servo, the direction for the receiving antenna are adjusted, and the receiving antenna is made to be directed toward SAR transmitting day
Line；
Transmitting antenna servo, the direction for the transmitting antenna are adjusted, and so that the transmitting antenna is directed toward the SAR and are received day
Line；
Numerical control unit, the direction for controlling the receiving antenna servo and the transmitting antenna servo are adjusted；
Radio frequency unit is sent to the transmitting antenna after carrying out signal processing to the signal that the receiving antenna receives；
Power distribution unit is that the receiving antenna servo, the transmitting antenna servo, the numerical control unit and the radio frequency unit supply
Electricity.
2. source scaler according to claim 1, wherein the radio frequency unit carries out four kinds of polarization by switch control
Calibration, including HH polarimetric calibration, HV polarimetric calibration, VH polarimetric calibration, VV polarimetric calibration；
When the source scaler carries out HH polarimetric calibration, the switch for receiving V polarized signal is closed, closes opening for transmitting V signal
It closes, opens the switch for receiving H polarized signal, open the switch of transmitting H polarized signal；
When the source scaler carries out HV polarimetric calibration, the switch for receiving V polarized signal is closed, closes opening for transmitting H signal
It closes, opens the switch for receiving H polarized signal, open the switch of transmitting V polarized signal；
When the source scaler carries out VH polarimetric calibration, the switch for receiving H polarized signal is closed, closes opening for transmitting V signal
It closes, opens the switch for receiving V polarized signal, open the switch of transmitting H polarized signal；
When the source scaler carries out VV polarimetric calibration, the switch for receiving H polarized signal is closed, closes opening for transmitting H signal
It closes, opens the switch for receiving V polarized signal, open the switch of transmitting V polarized signal.
3. source scaler according to claim 1, wherein the numerical control unit further include: start by set date equipment, according to
The configuring condition of the dual station SAR system controls the receiving antenna servo and transmitting antenna servo rotation, makes to receive day
Line is directed toward SAR transmitting antenna, and transmitting antenna is directed toward SAR receiving antenna.
4. source scaler according to claim 1, wherein the direction adjusting of the receiving antenna servo includes: orientation
It is adjusted to being directed toward to adjust with pitching to direction.
5. source scaler according to claim 1, wherein the direction adjusting of the transmitting antenna servo includes: orientation
It is adjusted to being directed toward to adjust with pitching to direction.
6. source scaler according to claim 1, wherein the receiving antenna and the transmitting antenna are high isolation
Spend dual polarized antenna.
7. source scaler according to claim 1, wherein the power distribution unit is wind energy-solar energy complementary power supply system
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187664.8A CN109343012B (en) | 2018-10-12 | 2018-10-12 | Active scaler for scaling of double-station SAR system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187664.8A CN109343012B (en) | 2018-10-12 | 2018-10-12 | Active scaler for scaling of double-station SAR system |
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| CN109343012A true CN109343012A (en) | 2019-02-15 |
| CN109343012B CN109343012B (en) | 2021-03-19 |
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| CN201811187664.8A Active CN109343012B (en) | 2018-10-12 | 2018-10-12 | Active scaler for scaling of double-station SAR system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944136Y (en) * | 2006-06-02 | 2007-09-05 | 中国科学院电子学研究所 | Active external scaler of broadband synthetic aperture radar |
| CN103245935A (en) * | 2012-02-03 | 2013-08-14 | 中国科学院电子学研究所 | Outer calibration system for high-precision SAR (Synthetic Aperture Radar) active scaler |
| CN103675773A (en) * | 2013-11-29 | 2014-03-26 | 西安空间无线电技术研究所 | Scaler and satellite pointing alignment determination method |
-
2018
- 2018-10-12 CN CN201811187664.8A patent/CN109343012B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944136Y (en) * | 2006-06-02 | 2007-09-05 | 中国科学院电子学研究所 | Active external scaler of broadband synthetic aperture radar |
| CN103245935A (en) * | 2012-02-03 | 2013-08-14 | 中国科学院电子学研究所 | Outer calibration system for high-precision SAR (Synthetic Aperture Radar) active scaler |
| CN103675773A (en) * | 2013-11-29 | 2014-03-26 | 西安空间无线电技术研究所 | Scaler and satellite pointing alignment determination method |
Non-Patent Citations (1)
| Title |
|---|
| 李亮 等: ""基于极化有源定标器的高分三号SAR在轨测试分析"", 《电子学报》 * |
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| CN109343012B (en) | 2021-03-19 |
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