CN106646454A - Target fast searching and recognizing method of space-based alarm monitoring system - Google Patents
Target fast searching and recognizing method of space-based alarm monitoring system Download PDFInfo
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- CN106646454A CN106646454A CN201611059589.8A CN201611059589A CN106646454A CN 106646454 A CN106646454 A CN 106646454A CN 201611059589 A CN201611059589 A CN 201611059589A CN 106646454 A CN106646454 A CN 106646454A
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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
- G01S13/86—Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
- G01S13/867—Combination of radar systems with cameras
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
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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
- G01S13/886—Radar or analogous systems specially adapted for specific applications for alarm systems
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- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
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- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a target fast searching and recognizing method of a space-based alarm monitoring system, which comprises the following steps: S1, an optical camera scans a field of view in the space to obtain an alarm image; S2, preprocessing the obtained alarm image, acquiring a star point center of mass position and an image star point position by using a convolution template, performing star map matching according to the relative position of the star point center of mass to obtain the pointing phase of a current optical axis; S3 calculating a fixed star position should be imaged in the current image according to the pointing phase of the current optical axis, comparing the image star point position with the fixed star position, finding out the target and obtaining the angle information if the star point is not at the fixed star position of the star target; S4, using a microwave radar to perform false confirmation on the detected target and detecting the distance and speed information of the true target.
Description
Technical field
The present invention be more particularly directed to a kind of target fast search recognition methods of space-based alarm monitoring system.
Background technology
Space-based alarm monitoring system is on a large scale the threat target in spatial domain carries out fast search knowledge around spacecraft
Not, relative distance, sight angle and the relative velocity for threatening target is obtained, the anti-collision early warning work(of spacecraft is realized
Energy.At present, space-based alarm monitoring technology is also in technological development and Qualify Phase on probation, mainly using microwave or optical detection
Equipment.Microwave radar possess ranging and range rate high accuracy, all weather operations ability, but cannot realize quick scanner uni high-resolution into
Picture；Optical detection devices have angle measurement high accuracy feature, but cannot provide distance and velocity information, and in space application, by
Many in background celestial body, solar irradiation affects big, processes acknowledging time to target long.Therefore, the present invention proposes a kind of phased array thunder
Up to the space-based alarm monitoring system being combined with optics, target search, confirmation, the recognition strategy of a set of Microwave Optics fusion are designed,
Solve the problems, such as the fast search and recognition and verification of space alarm monitoring system.
By patent retrieval, related invention patent 5 is retrieved altogether, wherein《Railway roadblock based on Echo Characteristics
Detection and alarm method and device》(number of patent application：201210566891.8 patent publication No.s：CN103033808) it is belonging to
Technical field of intelligent traffic management, its alarm method is used based on the method for Echo Characteristics, by by real-time millimetre
Ripple Echo Characteristics are compared with historical statistics echo character, realize the round-the-clock detection to railway roadblock with alarm.《Side
Position rotating phased array radar targeted surveillance and meteorological detection compatibility method and system》(number of patent application：201410111837.3 is special
Sharp publication number：CN103869309 phased array technology field) is belonged to, its targeted surveillance uses orientation rotation phased array
Radar target is monitored, for realizing meteorological detection.This two patents are to carry out targeted surveillance detection using radar, its direction with this
The research contents of patent is simultaneously differed.《A kind of target comprehensive parameters tracking measurement method shown based on radar warning situation map》
(number of patent application：201410407365.6 patent publication No.s CN104166137) it is related to field of photoelectric technology, its target following is surveyed
Amount method is that target is passively found by visible ray, then carries out the tracking measurement of target using radar, and this method is application
It is a kind of passive measurement device in the civilian detecting devices such as small boat, naval vessel, it is found that target is not quick enough, should with the present invention
Use the method in space and differ.《A kind of optics and the common aperture compound detection system of millimetre-wave radar》(number of patent application：
201410796336.3 patent publication No.s：CN104502909) it is related to optics and the common aperture compound detection system of millimetre-wave radar,
Belong to the crossing domain of optics and the radar exploration technique, be an innovation to optics and the common aperture hybrid system of millimeter wave, and
The innovative point of the present invention is that optics and microwave are combined a kind of strategy process for carrying out the quick scanning recognition of target, the two not phase
Together.《For the Pillarless caving localization method and device of space optical camera》(number of patent application：201510394011 patents
Publication number：CN105157700) be Pillarless caving with regard to space optical camera localization method, be only optical camera side
Face, it is not high with this patent degree of correlation.
The content of the invention
It is an object of the invention to provide a kind of target fast search recognition methods of space-based alarm monitoring system, flies to space
Remote, the threat target that on a large scale spatial domain is likely to occur carries out fast search capture around row device, and in field range
Threaten target independently measured and move contrail fitting, by measurement data be supplied to satellite system carry out target identification analysis,
Early warning judgement and anticollision are evaded.
In order to realize object above, the present invention is achieved by the following technical solutions：
A kind of target fast search recognition methods of space-based alarm monitoring system, is characterized in, the method includes following step
Suddenly：
S1, carries out visual field scanning and obtains alerting image in space using optical camera；
S2, the alerting image to obtaining is pre-processed, and using convolution mask asterism centroid position and image asterism are obtained
Position, according to the relative position of asterism barycenter star pattern matching is carried out, and the sensing phase place of current optical axis is obtained after the completion of matching；
S3, the star place that should be imaged in present image is calculated according to the sensing phasometer of described current optical axis, will
Image asterism position is contrasted with star place, if asterism is not in the star place of asterisk, finds its angle of Target Acquisition
Degree information；
S4, microwave radar carries out false confirmation to the target for detecting, and determines the distance and velocity information of real goal.
Also include after described step S4：
S5, in next round universe search procedure, using the movable information for having confirmed that target flight path is set up, by flight path outside
Push away, timesharing multi-beam continues track and localization, simultaneously scans for new threat target, and information is supplied in real time spacecraft.
Find that the target for obtaining is marked as first object～the N targets after target in described step S3.
Need to reject false target in described step S4.
The present invention compared with prior art, with advantages below：
1. alarm monitoring system in space combines optical camera and phased-array radar, works independently relative to microwave radar, tool
There is quick space non-cooperative target to track down and arrest ability.
2. optical camera uses wide visual field supervision camera, can on a large scale, remote field range it is directly fast
Speed search identification target.
3. optical camera scanning is obtained after alerting image, background rejecting is carried out using star pattern matching, using intelligent variable-gain
Technology, it is possible to reduce the consumption of invalid computation process.
4. optical camera measures guiding phased-array radar after target angle information and carries out target range, speed judgement, improves
The accuracy rate of target detection.
5. optical camera and microwave radar associated working, can recognize target with fast search, obtain angle on target, away from
From High Accuracy Parameters such as, speed, reach and fast and accurately alert purpose.
Description of the drawings
Fig. 1 is 80 ° × 160 ° of alarm visual field schematic diagram；
Fig. 2 obtains alerting image for optical camera, the schematic diagram obtained after star pattern matching；
Fig. 3 is the flow chart of the target fast search recognition methods of space-based alarm monitoring system of the present invention；
Specific embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
The present invention is that space alarm monitoring system combines optical system and microwave system associated working, carries out the quick of target
Scanning recognition, its specific embodiment is as follows：
As shown in figure 3, a kind of target fast search recognition methods of space-based alarm monitoring system, comprises the steps of：
S1, visual field scanning is carried out in space using optical camera, field range as shown in figure 1, alarm visual field be 80 ° ×
160 °, it is considered to the protection of in-orbit solar irradiation, based on the Integral small-sized product of 40 ° × 20 ° visual fields, field stitching is
80 ° × 20 °, with single step 18 ° are entered, 9 stepping realizations alert visual field all standing, obtain alerting image, and the target in image is entered
Row background rejects analysis；
S2, the alerting image to obtaining is pre-processed, and using convolution mask asterism centroid position and image asterism are obtained
Position, according to the relative position of asterism barycenter star pattern matching is carried out, and the sensing phase place of current optical axis is obtained after the completion of matching；
S3, the star place that should be imaged in present image is calculated according to the sensing phasometer of described current optical axis, will
Image asterism position is contrasted with star place, if asterism is not in the star place of asterisk, finds its angle of Target Acquisition
Degree information, finds that the target for obtaining is marked as first object～the N targets (N >=1) after target；
S4, optical camera is obtained after first object～the N targets after star pattern matching, target of the microwave radar to detection
False confirmation is carried out, false target is rejected, the distance and velocity information of real goal is determined.
In a particular embodiment, also include after above-mentioned step S4：S5, in next round universe search procedure, using
The movable information for confirming target sets up flight path, and by course extrapolation, timesharing multi-beam track and localization is continued, and simultaneously scans for new prestige
Side of body target, and information is supplied in real time spacecraft.
Specifically, carry out large-scale visual field scanning first with optical camera, for example, an azimuth be -40 °～
40 °, the angle of pitch is -80 °～80 °, and distance is in the visual field of alarm on a large scale of 200km, it is contemplated that the protection of in-orbit solar irradiation,
Based on 40 ° × 20 ° of visual field miniaturized products, field stitching is 80 ° × 20 °, such as Fig. 1, realizes covering entirely for alarm visual field
Lid, wherein set ▲ it is sets target, △ is fixed star or other objects.
Being set in field range has a target to be located at (- 10 °, -35 °), and in alarm background more than one bright spot is found,
Background rejecting is carried out to bright spot using star pattern matching, in order to improve acquisition probability, using intelligent variable-gain technology, in target acquistion
Afterwards, if true magnitude is higher, camera detectivity can be reduced, just can reduces the consumption of invalid computation process, be increased
The region of big target acquisition.The target that obtains after star pattern matching is drawn as shown in Fig. 2 be marked as 1～target of target 3
Lead microwave system to be determined three targets, in Fig. 2 ▲ it is suspicious object, △ is the fixed star of matching.
After optical camera detects target, microwave system according to the target angle information of optical system measuring, by radar
System is pointing directly at the angle on target of optical system measuring and points to, and just can confirm that 1～target of target 3 whether there is, to measuring
Target label apart from velocity information is real goal, and search routine is as shown in Figure 3.
It is calculated by parameter setting, during using optical system with microwave system associated working, the full volume-search coverage time
For 90s, compared with the 1280s that radar system works independently, effectively shorten and directly search for the time of target using microwave system,
Realize the fast search identification of target.
In sum, the target fast search recognition methods of a kind of space-based alarm monitoring system of the invention, to space flight
Remote, the threat target that on a large scale spatial domain is likely to occur carries out fast search capture around device, and to the prestige in field range
Side of body target is independently measured and move contrail fitting, is supplied to satellite system to carry out target identification analysis, pre- measurement data
It is alert to judge to evade with anticollision.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (4)
1. the target fast search recognition methods of a kind of space-based alarm monitoring system, it is characterised in that the method includes following step
Suddenly：
S1, carries out visual field scanning and obtains alerting image in space using optical camera；
S2, the alerting image to obtaining is pre-processed, and using convolution mask asterism centroid position and image asterism position are obtained,
Star pattern matching is carried out according to the relative position of asterism barycenter, the sensing phase place of current optical axis is obtained after the completion of matching；
S3, the star place that should be imaged in present image is calculated according to the sensing phasometer of described current optical axis, by image
Asterism position is contrasted with star place, if asterism is not in the star place of asterisk, finds Target Acquisition its angle letter
Breath；
S4, microwave radar carries out false confirmation to the target for detecting, and determines the distance and velocity information of real goal.
2. the target fast search recognition methods of space-based alarm monitoring system as claimed in claim 1, it is characterised in that described
The step of S4 after also include：
S5, in next round universe search procedure, using the movable information for having confirmed that target flight path is set up, by course extrapolation,
Timesharing multi-beam continues track and localization, simultaneously scans for new threat target, and information is supplied in real time spacecraft.
3. the target fast search recognition methods of space-based alarm monitoring system as claimed in claim 1, it is characterised in that described
The step of S3 in find target after the target for obtaining is marked as first object ~ the N targets.
4. the target fast search recognition methods of space-based alarm monitoring system as claimed in claim 1, it is characterised in that described
The step of S4 in need reject false target.
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Cited By (7)
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|---|---|---|---|---|
| CN107656246A (en) * | 2017-08-18 | 2018-02-02 | 上海无线电设备研究所 | A kind of space-based air-sea moving-target wide area detection system |
| CN108008375A (en) * | 2017-10-30 | 2018-05-08 | 中国人民解放军92232部队 | A kind of photoelectricity millimeter wave searching/tracking apparatus and method |
| CN109282799A (en) * | 2018-11-29 | 2019-01-29 | 上海航天控制技术研究所 | Method is quickly tracked down and arrested in a kind of classification for target |
| CN109541584A (en) * | 2018-12-29 | 2019-03-29 | 中国人民解放军空军工程大学 | A kind of low flyer reconnaissance warning system and method based on intelligent terminal |
| CN109559293A (en) * | 2018-12-03 | 2019-04-02 | 上海航天控制技术研究所 | A kind of step-by-step movement whole day domain scanning searcher and method |
| CN112505795A (en) * | 2020-10-19 | 2021-03-16 | 北京航天长征飞行器研究所 | Photoelectric detection system and method for GEO satellite omnidirectional alarm |
| CN115096285A (en) * | 2022-05-30 | 2022-09-23 | 中国人民解放军63660部队 | Atmospheric coherence length instrument star searching method based on cloud picture comparison |
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Cited By (12)
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| CN107656246A (en) * | 2017-08-18 | 2018-02-02 | 上海无线电设备研究所 | A kind of space-based air-sea moving-target wide area detection system |
| CN108008375A (en) * | 2017-10-30 | 2018-05-08 | 中国人民解放军92232部队 | A kind of photoelectricity millimeter wave searching/tracking apparatus and method |
| CN109282799A (en) * | 2018-11-29 | 2019-01-29 | 上海航天控制技术研究所 | Method is quickly tracked down and arrested in a kind of classification for target |
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| CN112505795A (en) * | 2020-10-19 | 2021-03-16 | 北京航天长征飞行器研究所 | Photoelectric detection system and method for GEO satellite omnidirectional alarm |
| CN112505795B (en) * | 2020-10-19 | 2023-08-01 | 北京航天长征飞行器研究所 | Photoelectric detection system and method for GEO satellite omnidirectional alarm |
| CN115096285A (en) * | 2022-05-30 | 2022-09-23 | 中国人民解放军63660部队 | Atmospheric coherence length instrument star searching method based on cloud picture comparison |
| CN115096285B (en) * | 2022-05-30 | 2024-04-23 | 中国人民解放军63660部队 | Star searching method of atmospheric coherence length instrument based on cloud image comparison |
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Application publication date: 20170510 |