CN106932775B - A kind of ISAR imaging test high-precision indicator device - Google Patents
A kind of ISAR imaging test high-precision indicator device Download PDFInfo
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- CN106932775B CN106932775B CN201710138003.5A CN201710138003A CN106932775B CN 106932775 B CN106932775 B CN 106932775B CN 201710138003 A CN201710138003 A CN 201710138003A CN 106932775 B CN106932775 B CN 106932775B
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- rotary body
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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
-
- 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
- G01S13/9064—Inverse SAR [ISAR]
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
A kind of ISAR imaging test high-precision indicator device, including aerial panel bracket, horizontal direction rotary body, vertical direction rotary body；The program mainly drives bottom bracket by rotating electric machine, is allowed to realize that the high pointing accuracy of vertical direction adjusts by fine tuning locking system around bearing arrangement rotation is turned to；Steering Support bracket is promoted by promoting motor, is rotated by rotary shaft in rotary shaft rack U-type groove, realizes the high pointing accuracy adjustment of horizontal direction.The present invention realizes ISAR imaging test high-precision and is directed toward, and smoothly captures spatial target images, and the verifying of Radio Link closed loop and in-orbit image index are estimated and provide data supporting between star ground, provides reference for subsequent SAR antenna development.
Description
Technical field
The present invention relates to a kind of ISAR imaging test high-precision indicator devices, belong to remote sensing fields ISAR ground-testing plant
Field.
Background technique
GF-3 satellite is the C frequency range multi polarized SAR imaging satellite for having high-resolution imaging ability.
GF-3 satellite reliability requirement is high, to reach end of lifetime imaging indicators requirement in 8 years, needs on ground in face of SAR subsystem and SAR
The functional performance of antenna is adequately verified.Conventional general assembly factory electrical measurement and every environmental test are unable to complete between star ground wirelessly
The closed loop of link is verified.Simultaneously because GF-3 satellite SAR antenna size is big, winged or ground sport car progress nothing can not be hung by airborne
Line imaging test, therefore satellite master-plan ISAR imaging test, test data and imaging results are total to GF-3 satellite
Fill the useful supplement of factory's electrical measurement result.
This test is the domestic ISAR imaging test carried out for the first time using Spaceborne SAR System, and no correlation experience is for ginseng
It examines, can only realize that the high-precision of SAR system is directed toward by the high-precision adjustment of ground tooling, to realize catching for extraterrestrial target
It obtains.Since the extraterrestrial targets such as tiangong-1, international space station track is high, target is small, is rapidly exceedingly fast, it is extremely difficult to capture, ground tooling
The slight error of adjustment and pointing accuracy can lead to the loss of extraterrestrial target capture.
Summary of the invention
Technical problem solved by the present invention is overcome the deficiencies in the prior art, proposes a kind of ISAR imaging test high-precision
Indicator device can be such that SAR antenna has on the ground and be accurately directed to condition to what extraterrestrial target was imaged, pass through the device
High-precision be directed toward can get imaging data formed spatial target images, for GF-3 Satellite ground between Radio Link closed loop verify and
Rail image index estimates offer data supporting, provides Experience for subsequent SAR antenna development.
The technical solution of the present invention is as follows: a kind of ISAR imaging test high-precision indicator device, including aerial panel bracket, water
Square to rotary body, vertical direction rotary body；
Aerial panel bracket is independent rigid body bracket；
Horizontal direction rotary body includes turning to Support bracket, rotary shaft, rotary shaft rack, the first lifting tackle, the second promotion
Pulley, first promoted drag-line, second promoted drag-line, lifting bracket, overturning dial, overturning suspending hammer pointer, first promoted motor,
Second promotes motor；
Vertical direction rotary body includes bottom bracket, steering bearing device, caster wheel, circular arc, adjusts lower margin, turns
To dial, rotating electric machine, fine tuning locking system；
Steering bearing device is located at ISAR test high-precision indicator device bottom center, and couples with ground fastening, revolves
Turn center as package unit rotation center；Steering dial is mounted on bottom bracket, bottom bracket one end and steering bearing
Device is connected, and the other end is equipped with caster wheel；Circular arc level is adjusted by adjusting lower margin, and guarantees SAR antenna and day
Line panel rack is horizontal, realizes that antenna measurement original state is horizontal；Rotating electric machine pushes caster wheel to roll along circular arc, leads to
The fine tuning locking system crossed in circular arc carries out angle adjustment, and reads setting registration in steering dial, finally by circle
Fine tuning locking system on arc sliding rail is locked, and realizes the angle adjustment of vertical direction；
Rotary shaft rack, lifting bracket are connected with bottom bracket, and first, which promotes drag-line, the first lifting tackle, props up with promotion
Frame is connected, and rotary shaft, aerial panel bracket are connect with steering Support bracket；The rotary shaft and rotary shaft rack realize bidirectional rotary
Turn cooperation；Overturning dial, overturning suspending hammer pointer are fixed on aerial panel bracket, in lifting process, overturn suspending hammer pointer
It will remain that vertical direction, overturning dial are rotated together with aerial panel bracket under the effect of gravity, and overturn suspending hammer pointer
It is flip angle in overturning dial meaning registration；It drives first to promote drag-line after first promotion electric motor starting to be promoted around first
Pulley rotation, second promotion electric motor starting after drive first promotion drag-line rotated around the first lifting tackle, mentioned so as to cause first
Rise drag-line, second promote guy cable length elongated or shorten, first promoted drag-line, second promoted the drag-line other end with turn to branch
Bracketing frame is connected, and the variation of the first promotion drag-line, the second promotion guy cable length causes the promotion or reduction that turn to Support bracket；It is logical
Rotary shaft is crossed to rotate in the U-type groove of rotary shaft rack, it is common promoted or reduced turn to Support bracket, and by overturning dial,
The specified rotation angle of suspending hammer pointer instruction is overturn, until meeting test request.
The steering bearing device selects ball bearing.
The Support bracket that turns to uses the square of 1Cr18Ni9Ti is stainless steel welded to form, and has two crossbeams on bracket,
It is all made of 120mm × 120mm solid square steel plate.
Described first, which promotes rope diameter used by drag-line, the second promotion drag-line, is greater than 10mm.
The lifting bracket using can two-way assembly model, be respectively used to the level side of ISAR test high-precision indicator device
To positive and reverse angle adjustment.
The rotary shaft has two groups, and bidirectional rotation cooperation can be realized with rotary shaft rack.
The overturning dial, overturning suspending hammer pointer are fixed on aerial panel bracket, each 1 group of two sides.
The advantages of the present invention over the prior art are that:
(1) present invention uses bidirectional turning supported design, and structure is simple, easy for installation, it can be achieved that ISAR experimental test is empty
Between be directed toward area requirement and high-precision be directed toward require, can realize in this example SAR antenna around horizontal direction rotate ± 30 °；
(2) present invention uses motor electrodeless variable-speed in conjunction with fine motion adjustment two ways, it can be achieved that high-precision rotational angle
It is required that can realize that rotation precision is 0.02 ° in this example, deviation is directed toward less than 0.01 °；
(3) side that the present invention is combined using aerial panel bracket, horizontal direction rotary body with vertical direction rotary body three-level
Formula is, it can be achieved that big carrying (SAR antenna and aerial panel bracket weigh about 3.5 tons) high precision position and posture adjusts.
Detailed description of the invention
Fig. 1 is that ISAR tests high-precision indicator device schematic diagram in the present invention.
Fig. 2 is aerial panel support schematic diagram in the present invention.
Fig. 3 is vertical direction rotary body schematic diagram in the present invention.
Fig. 4 is horizontal direction rotary body schematic diagram in the present invention.
Fig. 5 is that locking system schematic diagram is finely tuned in the present invention.
Specific embodiment
The present invention proposes a kind of ISAR imaging test high-precision indicator device, as shown in Figure 1.The device is by SAR antenna
It is directed toward adjustment process and is divided into two steps, be horizontally oriented rotation and vertical direction rotation respectively；Corresponding horizontal direction rotation is water
Square to rotary body, corresponding vertical direction rotation is vertical direction rotary body, and the realization process of each section is described in detail below.
(1) aerial panel bracket
Aerial panel bracket 1 is independent rigid body bracket, as shown in Figure 2.SAR antenna is mounted on aerial panel bracket 1, can
Guarantee aerial panel depth of parallelism degree of being parallel to the horizontal plane, aerial panel depth of parallelism degree of being parallel to the horizontal plane can reach excellent in this example
In 0.01 °；When pose adjusts, SAR antenna and aerial panel bracket 1 component associated movement as a whole.
(2) vertical direction rotary body
Vertical direction rotary body turn-around design in such a way that bearing is in conjunction with castor, mainly include bottom bracket 12,
Steering bearing device 13, circular arc 15, adjusts lower margin 16, steering dial 17, rotating electric machine 20, fine tuning at caster wheel 14
Locking system 21, as shown in Figure 3.
1) bottom bracket 12: for placing aerial panel bracket 1, horizontal direction rotary body and vertical direction rotary body transfer
It is main support member to bearing arrangement 13.Adjustably foot 16, one end and steering shaft install the installation of 12 bottom of bottom bracket
It sets 13 to be connected, the other end is equipped with caster wheel 14.
2) steering bearing device 13: steering bearing device 13 is located at ISAR test high-precision indicator device bottom center, and
Couple with ground fastening, rotation center is as package unit rotation center；Consider whole device load capacity (3.5 tons),
This example middle (center) bearing selects 900 ball bearing of outer diameter Φ.
3) caster wheel 14: 3 caster wheels 14 are installed in 12 front end of bottom bracket, and castor can be slided in circular arc 15
It is dynamic, realize that vertical direction turns to.
4) circular arc 15: circular arc 15 is spliced by circular arc steel plate, turns to needs according to angle, position can
It adjusts.Multiple adjusting lower margins 16 are installed on sliding rail.
5) it adjusts lower margin 16: adjustable lower margin 16 is respectively mounted in circular arc 15 and bottom bracket 12, according to test site
Actual state can adjust 15 level of circular arc by adjusting lower margin 16, and guarantee that SAR antenna and aerial panel bracket 1 are horizontal,
It is horizontal that antenna measurement original state can be achieved；
6) steering dial 17: steering dial 17 is mounted on bottom bracket 12, can be rotated with bottom bracket 12.Scale
Index is fixed on steering bearing device 13, keeps relatively motionless with ground.When bottom bracket 12 rotates, can pass through
Steering dial 17 reads rotation angle.
7) rotating electric machine 20: rotating electric machine 20 can push caster wheel 14 to roll along circular arc 15, require angle wait go to
Stop after degree, rotating electric machine 20 selects heavy-duty motor in this example.
8) finely tune locking system 21: fine tuning locking system 21 is as shown in figure 5, be mounted in circular arc 15.To vertical side
After going to required angle to rotary body, angle adjustment can be carried out until meeting accurate test request angle by fine tuning locking system 21
Degree, and final registration is read in steering dial 17, it is locked finally by fine tuning locking system 21, to realize vertical side
To angle adjustment.It can realize that vertical direction running accuracy reaches 0.01 ° in this example.
(3) horizontal direction rotary body
Horizontal direction rotary body, as shown in figure 4, including that the first promotion motor 18, second promotes motor 19, turns to supporting bracket
Frame 2, rotary shaft 3, rotary shaft rack 4, the first lifting tackle 5, the second lifting tackle 6, first promote drag-line 7, second and promote drag-line
8, lifting bracket 9, overturning dial 10, overturning suspending hammer pointer 11.Rotary shaft rack 4, lifting bracket 9 are connected with bottom bracket 12,
First promotion drag-line 7, second promotes drag-line 8, the first lifting tackle 5, the first lifting tackle 6 and is connected with lifting bracket 9, rotary shaft
3, aerial panel bracket 1 is connect with Support bracket 2 is turned to.
1) it turns to Support bracket 2: turning to Support bracket 2 for placing aerial panel bracket 1, weldering connects two groups of rotary shafts thereon
3 totally 4, it is connected with rotary shaft rack 4, realizes the connection of vertical direction rotary body.Support bracket 2 is turned to using the side of 1Cr18Ni9Ti
Type is stainless steel welded to be formed, and has two crossbeams of shaft using 120mm × 120mm solid square steel plate on bracket.
2) rotary shaft 3: weldering connects two groups of totally 4 shafts on turning to Support bracket 2, is respectively used to the positive and negative angle of horizontal direction
The adjustment of degree.In its U-type groove for being placed on rotary shaft rack 4, bidirectional rotation cooperation can be realized with rotary shaft rack 4.
3) rotary shaft rack 4: installing 2 groups of rotary shaft racks 4 on bottom bracket 12, and rotary shaft rack 4 is corresponding with the connection of rotary shaft 3
There is U-type groove interface at place, for realize the positive and negative angle of horizontal direction adjustment, the U-type groove of rotary shaft rack 4 have 2 groups totally 4, it can be achieved that
Bidirectional rotation cooperation.
4) it the first lifting tackle 5, the second lifting tackle 6: to realize big carry load bracket and aerial panel overturning, uses
2 groups of lifting tackles, every in this example group of lifting tackle maximum load-carrying capacity are 5 tons.Lifting tackle itself has self-locking function, can
It effectively prevent generation product in lifting process to fall off.
5) it first promotes the promotion drag-line 8 of drag-line 7, second: for the safety for guaranteeing big carry load bracket and aerial panel, adopting
Use wirerope as drag-line is promoted, wirerope diameter is 12mm in this example.
6) lifting bracket 9: lifting bracket 9 using can two-way assembly model, be respectively used to ISAR test high-precision be directed toward dress
The horizontal direction forward direction and reverse angle adjustment set.
7) dial 10, overturning suspending hammer pointer 11: overturning dial 10, overturning suspending hammer pointer 11 and aerial panel branch are overturn
Frame 1 connects, and is fixed on aerial panel bracket 1, each 1 group of two sides, and in lifting process, overturning suspending hammer pointer 11 will be made in gravity
Vertical direction is remained under, and overturning dial 10 will rotate together with aerial panel bracket 1, overturning suspending hammer pointer 11 exists
Overturning the signified registration of dial 10 is flip angle.
8) the first promotion motor 18, second promotes motor 19: the first and promotes the first promotion of drive drag-line 7 after motor 18 starts
It being rotated around the first lifting tackle 5, the second promotion motor 19 drives the second promotion drag-line 8 to rotate around the second lifting tackle 6 after starting,
Drag-line 7, second is promoted so as to cause first and promotes the elongated of 8 length of drag-line or shortening, and first, which promotes the promotion of drag-line 7, second, draws
8 other end of rope is connected with steering Support bracket 2, and the variation that the first promotion drag-line 7, second promotes 8 length of drag-line can cause to turn
Promotion or reduction to Support bracket 2；U-type groove by rotary shaft 3 in rotary shaft rack 4 rotates, common to promote or reduce steering
Support bracket 2；For the safety for guaranteeing big carry load aerial panel bracket 1 and aerial panel, high-power electricity is used in this example
Machine, the first promotion motor 18, second, which promotes motor 19, self-locking function, can prevent generation product in lifting process from falling off；It is logical
Overturning dial 10, the determining rotation angle of the overturning instruction of suspending hammer pointer 11 are crossed, until meeting test request.
A kind of expansion process of ISAR imaging test high-precision indicator device of the present invention is as follows:
The first step is vertical direction rotation.By adjusting lower margin 16, to adjust circular arc 15 horizontal, and guarantee SAR antenna with
Aerial panel bracket 1 is horizontal, realizes that antenna measurement original state is horizontal；Rotating electric machine 20 pushes bottom bracket 12, makes to turn to foot
Wheel 14 is rolled along circular arc 15, is stopped after going to required angle, and the fine tuning locking system in circular arc 15 is then passed through
21 carry out angle adjustment, and read final registration in steering dial 17, until meeting test request angle, finally by circular arc
Fine tuning locking system 21 on sliding rail 15 is locked, to realize the angle adjustment of vertical direction.
Second step is horizontal direction rotation.First, which promotes drive first after motor 18 starts, promotes drag-line 7 around the first promotion
Pulley 5 rotates, and the second promotion motor 19 drives the second promotion drag-line 8 to rotate around the second lifting tackle 6 after starting, so as to cause the
One, which promotes drag-line 7, second, promotes the elongated of 8 length of drag-line or shortens, and it is equal that the first promotion drag-line 7, second promotes 8 other end of drag-line
It is connected with Support bracket 2 is turned to, the variation that the first promotion drag-line 7, second promotes 8 length of drag-line can cause to turn to Support bracket 2
Promotion or reduction；U-type groove by rotary shaft 3 in rotary shaft rack 4 rotates, common to promote or reduce steering Support bracket 2；It is logical
Overturning dial 10, the determining rotation angle of the overturning instruction of suspending hammer pointer 11 are crossed, until meeting test request.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (7)
1. a kind of ISAR imaging test high-precision indicator device, it is characterised in that: including aerial panel bracket (1), horizontal direction
Rotary body, vertical direction rotary body；Aerial panel bracket (1) is independent rigid body bracket；Horizontal direction rotary body is placed on vertically
On the rotary body of direction, aerial panel bracket (1) is placed on rotary body in the horizontal direction；The horizontal direction rotary body includes turning to
Support bracket (2), rotary shaft (3), rotary shaft rack (4), the first lifting tackle (5), the second lifting tackle (6), first, which are promoted, to be drawn
Rope (7), second promote drag-line (8), lifting bracket (9), overturning dial (10), overturning suspending hammer pointer (11), the first promotion electricity
Machine (18), second promote motor (19)；The rotary shaft rack (4), lifting bracket (9) are connected with vertical direction rotary body, the
One promotes drag-line (7), the first lifting tackle (5) is connected with lifting bracket (9), and rotary shaft (3), aerial panel bracket (1) are equal
It is connect with Support bracket (2) are turned to；Bidirectional rotation cooperation is realized in the rotary shaft (3) and rotary shaft rack (4)；Overturn dial
(10), overturning suspending hammer pointer (11) is fixed on aerial panel bracket (1).
2. a kind of ISAR imaging test high-precision indicator device according to claim 1, it is characterised in that: the steering branch
Bracketing frame (2) using 1Cr18Ni9Ti square it is stainless steel welded form, have two crossbeams on bracket, be all made of 120mm ×
120mm solid square steel plate.
3. a kind of ISAR imaging test high-precision indicator device according to claim 1, it is characterised in that: described first mentions
It rises rope diameter used by drag-line (7), the second promotion drag-line (8) and is greater than 10mm.
4. a kind of ISAR imaging test high-precision indicator device according to claim 1, it is characterised in that: the promotion branch
Frame (9) using can two-way assembly model, be respectively used to ISAR test high-precision indicator device horizontal direction is positive and reflex angle
Degree adjustment.
5. a kind of ISAR imaging test high-precision indicator device according to claim 1, it is characterised in that: the rotary shaft
(3) there are two groups, bidirectional rotation cooperation can be realized with rotary shaft rack (4).
6. a kind of ISAR imaging test high-precision indicator device according to claim 2, it is characterised in that: the overturning is carved
Scale (10), overturning suspending hammer pointer (11) are fixed on aerial panel bracket (1), each 1 group of two sides.
7. a kind of ISAR imaging test high-precision indicator device according to claim 1, it is characterised in that: the vertical side
Include bottom bracket (12), steering bearing device (13), caster wheel (14), circular arc (15), adjust lower margin to rotary body
(16), steering dial (17), rotating electric machine (20), fine tuning locking system (21)；The steering bearing device (13) is located at
ISAR tests high-precision indicator device bottom center, and couples with ground fastening, and rotation center is as in package unit rotation
The heart；Steering dial (17) is mounted on bottom bracket (12), and bottom bracket (12) one end is connected with steering bearing device (13),
The other end is equipped with caster wheel (14)；By adjusting lower margin (16), to adjust circular arc (15) horizontal, and guarantee SAR antenna with
Aerial panel bracket (1) is horizontal, realizes that antenna measurement original state is horizontal；Rotating electric machine (20) pushes caster wheel (14) along circle
Arc sliding rail (15) rolls, and carries out angle adjustment by the fine tuning locking system (21) on circular arc (15), and turning to scale
Disk (17) reads setting registration, is locked finally by the fine tuning locking system (21) on circular arc (15), and it is vertical to realize
The angle in direction adjusts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138003.5A CN106932775B (en) | 2017-03-09 | 2017-03-09 | A kind of ISAR imaging test high-precision indicator device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138003.5A CN106932775B (en) | 2017-03-09 | 2017-03-09 | A kind of ISAR imaging test high-precision indicator device |
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| Publication Number | Publication Date |
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| CN106932775A CN106932775A (en) | 2017-07-07 |
| CN106932775B true CN106932775B (en) | 2019-05-24 |
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| CN111029720B (en) * | 2019-11-29 | 2021-06-08 | 北京计算机技术及应用研究所 | RFID antenna radiation performance reinforcing device |
Citations (4)
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|---|---|---|---|---|
| KR100932383B1 (en) * | 2009-05-25 | 2009-12-16 | 한국지질자원연구원 | Arc synthetic aperture radar system capable of acquisition of high resolution image |
| CN102426355A (en) * | 2011-09-14 | 2012-04-25 | 北京航空航天大学 | Device and method for compensating laser emission pointing disturbance of airborne LADAR (Laser Detection and Ranging) |
| CN105659919B (en) * | 2011-12-12 | 2014-06-04 | 北京空间飞行器总体设计部 | A kind of spaceborne servomechanism system |
| CN106291557A (en) * | 2016-08-30 | 2017-01-04 | 西安空间无线电技术研究所 | A kind of satellite platform attitude maneuver method realizing satellite-borne SAR ultrahigh resolution slip beam bunching mode |
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2017
- 2017-03-09 CN CN201710138003.5A patent/CN106932775B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100932383B1 (en) * | 2009-05-25 | 2009-12-16 | 한국지질자원연구원 | Arc synthetic aperture radar system capable of acquisition of high resolution image |
| CN102426355A (en) * | 2011-09-14 | 2012-04-25 | 北京航空航天大学 | Device and method for compensating laser emission pointing disturbance of airborne LADAR (Laser Detection and Ranging) |
| CN105659919B (en) * | 2011-12-12 | 2014-06-04 | 北京空间飞行器总体设计部 | A kind of spaceborne servomechanism system |
| CN106291557A (en) * | 2016-08-30 | 2017-01-04 | 西安空间无线电技术研究所 | A kind of satellite platform attitude maneuver method realizing satellite-borne SAR ultrahigh resolution slip beam bunching mode |
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