CN104964949A - Space target laser scattering dynamic characteristic test system - Google Patents
Space target laser scattering dynamic characteristic test system Download PDFInfo
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- CN104964949A CN104964949A CN201510292607.6A CN201510292607A CN104964949A CN 104964949 A CN104964949 A CN 104964949A CN 201510292607 A CN201510292607 A CN 201510292607A CN 104964949 A CN104964949 A CN 104964949A
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Abstract
The invention provides a space target laser scattering dynamic characteristic test system. The system comprises a laser emission/reception subsystem, an attitude simulation subsystem, and a low reflection/scattering background and a central management control subsystem. The laser emission/reception subsystem is used for emitting laser to form simulation space far-filed laser for irradiation on an object to be detected and receiving scattered light produced by the object to be detected. The attitude simulation subsystem is used for bearing the object to be detected and adjusting the attitude of the object to be detected relatively to the laser emission/reception subsystem. The low reflection/scattering background is used for reducing reflection/scattering back wave produced in a background area under direct irradiation of laser in a test. The central management control subsystem is used for monitoring of the laser emission/reception subsystem and the attitude simulation subsystem, acquisition, storage and analysis of test data and display of a test result. The test result can provide reasonable suggestion for a space in-orbit test task program.
Description
Technical field
The present invention relates to space test target carries out laser scattering properties test equipment in ground experiment indoor, be specifically related to a kind of extraterrestrial target laser light scattering dynamical property test system.
Background technology
Utilizing laser acquisition sensor to observe extraterrestrial target is one of important means of Space Object Detection, extraterrestrial target laser light scattering dynamic Characteristic Data can provide reliable foundation for the design and evaluation of the making rational planning for of space-orbit experiment process, laser acquisition sensor unit and target acquistion, the research of recognition and tracking algorithm and the setting of revision parameter accurately, for this reason, need to analyze the laser light scattering dynamic perfromance of spatial observation target, and the imaging of observed object is emulated.
Only be difficult to the geometry of complete simulation test target itself and surperficial thermal control state and space-orbit actual motion state by theoretical modeling and simulation analysis, therefore only utilize modeling and software analysis more or less can there is certain deviation.
In order to obtain more reliable laser light scattering dynamic Characteristic Data, need the mock-up of development test observed object, build extraterrestrial target laser light scattering dynamical property test system, the true observing environment of approximate spatial is carried out by the space-orbit running status of simulation test target, carry out simulating to the laser light scattering dynamic perfromance of test objective and test, and then compare analysis with theoretical analysis result, to verify analytical model.Thus more reasonably advise, for the development of laser pointing system provides more reliable foundation for space-orbit test mission planning provides.
Thus, industry needs a kind of new interior space target laser scattering dynamical property test system.
Summary of the invention
For defect of the prior art, the object of this invention is to provide one.
According to a kind of extraterrestrial target laser light scattering dynamical property test system provided by the invention, it is characterized in that, comprise Laser emission/receiving subsystem, attitude-simulating subsystem, low reflect/scatter background and central management control subsystem;
Described Laser emission/receiving subsystem is used for, and forms virtual space far-field laser, thus carries out laser irradiation to measured target and receive the scattered light of described measured target scattering;
Described attitude-simulating subsystem is for carrying described measured target, and the described measured target of adjustment is relative to the attitude of described Laser emission/receiving subsystem;
The reflect/scatter echo that described low reflect/scatter background produces for reducing laser direct irradiation background area in test process;
Described central management control subsystem is used for monitoring described Laser emission/receiving subsystem, attitude-simulating subsystem, and gather, store, analyzing test data and showing test results.
As a kind of prioritization scheme, described Laser emission/receiving subsystem comprises laser beam emitting device, laser receiver, collimating mirror, power supply and bogey;
Described laser beam emitting device and described laser receiver are installed on described bogey, and are connected with described power supply;
Described laser beam emitting device comprises laser instrument and beam expanding lens, and described laser instrument is in order to Emission Lasers, and described laser expands through described beam expanding lens and enters described collimating mirror, is formed described virtual space far-field laser by outgoing after described collimating mirror collimation;
Described laser receiver comprises reception camera lens and return laser beam receiver, described return laser beam receiver receives described scattered light by described reception camera lens, thus acquisition echo data, described return laser beam receiver is also in order to be sent to described central management control subsystem by described echo data.
As a kind of prioritization scheme, described collimating mirror diameter is 1 meter, focal length is 5 meters, the optical axis of described collimating mirror and laser optical path horizontal deflection 8 degree, outgoing after incident laser collimation is formed described virtual space far-field laser, described measured target is arranged on in the light path at described collimating mirror minute surface 27 meters of, and described virtual space far-field laser is 3.2 meters at the hot spot homogeneity range diameter at described measured target place, and the circumscribed enveloping diameter of described measured target is less than 3 meters.
As a kind of prioritization scheme, described attitude-simulating subsystem comprises base, lower circular motion track, slew gear, upper circular motion track, upper motion portion, lower motion portion, measured target bracing frame and for driving some drive motor of described upper operation portion, lower motion portion, slew gear;
Described slew gear comprises chassis and rotating part, and described rotating part rotates relative to the central shaft on described chassis;
Described lower circular motion track is fixedly installed on described base, described chassis is connected with described lower circular motion track by described lower motion portion, described rotating part is fixedly connected with described upper circular motion track, described measured target bracing frame is connected with described upper circular motion track by described upper motion portion, and described lower circular motion track side surfaces is vertical with described virtual space far-field laser;
Described measured target is installed on described measured target bracing frame;
Sliding in described arc lower tracks for being driven by described motor in described lower motion portion, adjusts the roll angle of described measured target;
Described upper motion portion is used for being driven by described motor arcuate movement track sliding on described, adjusts the angle of pitch of described measured target;
Described rotating part is used for being driven by described motor rotating, and adjusts the orientation rotation angle of described measured target.
As a kind of prioritization scheme, described low reflect/scatter background is set at least cover the irradiation hot spot shining directly into when laser irradiates described measured target and laboratory wall is formed.
As a kind of prioritization scheme, described low reflect/scatter background is black light-absorbing cloth.
As a kind of prioritization scheme, described central management control subsystem comprises experimental data base, controlling test administration module, digital sampling and processing and monitoring module;
Described experimental data base be used for the described test data that test process produces typing, browse, delete, associate;
Described controlling test administration module is used for control survey equipment automatization and completes test process;
Described digital sampling and processing be used for setting data acquisition condition, and the collection of test data, process, and test result display;
Described monitoring module is used for carrying out real time monitoring to Laser emission/receiving subsystem and attitude-simulating subsystem.
As a kind of prioritization scheme, described experimental data base comprises equipment library, material depot, object library, model bank.
As a kind of prioritization scheme, described digital sampling and processing comprises collecting device, gathers control module and data processing unit; Described collecting device responds the real-time display that described collection control module completes the collection of measuring-signal, record, process and result,
Described collection control module is used for sending acquisition instructions to described collecting device,
Described data processing unit is used for carrying out secondary coding to the image data received from described collecting device, superposition record test data, and test result display.
As a kind of prioritization scheme, described monitoring module comprises indoor ball-shaped camera.
Compared with prior art, the present invention has following beneficial effect:
The invention solves the laser scattering properties problem in the different attitude situation of analogue measurement extraterrestrial target in laboratory conditions, test result can provide rational suggestion for space-orbit test mission planning, and the development for laser acquisition sensor provides reliable foundation.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is optional a kind of extraterrestrial target laser light scattering dynamical property test system schematic diagram;
Fig. 2 is optional a kind of extraterrestrial target laser light scattering dynamic characteristic test attitude-simulating subsystem schematic diagram;
Fig. 3 is optional a kind of extraterrestrial target laser light scattering dynamical property test system Laser emission/receiving system schematic diagram;
Fig. 4 is optional a kind of extraterrestrial target laser light scattering dynamical property test system central management control subsystem composition schematic diagram.
In figure: 1-attitude-simulating system, 2-Laser emission/receiving system, 3-central management control system, the low reflect/scatter background of 4-, 5-measured target, 6-collimating mirror, circular motion track under 101-, the upper circular motion track of 102-, the upper motion portion of 103-, motion portion under 104-, 105-slew gear, 106-measured target bracing frame.
Embodiment
See the accompanying drawing that the embodiment of the present invention is shown, hereafter in more detail the present invention will be described.But the present invention can realize in many different forms, and should not be construed as by the restriction in the embodiment of this proposition.On the contrary, it is abundant and complete open in order to reach for proposing these embodiments, and makes those skilled in the art understand scope of the present invention completely.In these accompanying drawings, for clarity sake, may be exaggerated size and the relative size in layer and region.
Should be understood that the part of description of the invention/be illustrated as individual unit can be present in the entity that two or more physically independent but cooperation realizes the function of described/diagram.In addition, describe/be illustrated as two or more physically independently part accessible site enter an independent physically entity to carry out described/illustrated function.
Below in conjunction with accompanying drawing, in the mode of specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
In embodiment as shown in Figure 1, a kind of extraterrestrial target laser light scattering dynamical property test system, is characterized in that, comprises Laser emission/receiving subsystem, attitude-simulating subsystem, low reflect/scatter background and central management control subsystem.
Described Laser emission/receiving subsystem is used for, and forms virtual space far-field laser, thus carries out laser irradiation to measured target and receive the scattered light of described measured target scattering.Laser emission and laser pick-off are with standing, and the relative attitude simultaneously simulated between space laser detector and test objective changes.
Described attitude-simulating subsystem is for carrying described measured target, and the described measured target of adjustment is relative to the attitude of described Laser emission/receiving subsystem.
The reflect/scatter echo that described low reflect/scatter background produces for reducing laser direct irradiation background area in test process.
Described central management control subsystem is used for monitoring described Laser emission/receiving subsystem, attitude-simulating subsystem, and gather, store, analyzing test data and showing test results.
Described central management control system is arranged on laboratory, described test macro place not by laser transmitting system irradiation position.
Attitude-simulating subsystem 1, Laser emission/receiving subsystem 2, central management control subsystem 3 and low reflect/scatter background 4 are combined, can the virtual space test objective laser scattering properties that test platform receives in the different attitude situation in space, echo data under laser pick-off subsystem 2 acquisition test target different conditions, processed by central management control subsystem 3, the laser scattering properties of observed object under acquisition different situations.
As a kind of embodiment, described Laser emission/receiving subsystem comprises laser beam emitting device, laser receiver, collimating mirror, power supply and bogey.
Described laser beam emitting device and described laser receiver are installed on described bogey, and are connected with described power supply.
Described laser beam emitting device comprises laser instrument and beam expanding lens, and described laser instrument is in order to Emission Lasers, and described laser expands through described beam expanding lens and enters described collimating mirror, is formed described virtual space far-field laser by outgoing after described collimating mirror collimation.
Described laser receiver comprises reception camera lens and return laser beam receiver, described return laser beam receiver receives described scattered light by described reception camera lens, thus acquisition echo data, described return laser beam receiver is also in order to be sent to described central management control subsystem by described echo data.
As a kind of preferred embodiment, described collimating mirror diameter is 1 meter, focal length is 5 meters, the optical axis of described collimating mirror and laser optical path horizontal deflection 8 degree, outgoing after incident laser collimation is formed described virtual space far-field laser, described measured target is arranged on in the light path at described collimating mirror minute surface 27 meters of, and described virtual space far-field laser is 3.2 meters at the hot spot homogeneity range diameter at described measured target place, and the circumscribed enveloping diameter of described measured target is less than 3 meters.Processed by the process software in optical calibration and central management control system 4, obtain the laser scattering properties of measured target under different attitude.
As a kind of embodiment, as shown in Figure 2, described attitude-simulating subsystem 1 comprises base, lower circular motion track 101, slew gear 105, upper circular motion track 102, upper motion portion 103, lower motion portion 104, measured target bracing frame 106 and for driving some drive motor of described upper operation portion, lower motion portion 104, slew gear 105.
Described slew gear 105 comprises chassis and rotating part, and described rotating part rotates relative to the central shaft on described chassis.
Described lower circular motion track 101 is fixedly installed on described base, described chassis is connected with described lower circular motion track 101 by described lower motion portion 104, described rotating part is fixedly connected with described upper circular motion track 102, described measured target bracing frame 106 is connected with described upper circular motion track 102 by described upper motion portion 103, and described lower circular motion track 101 side is vertical with described virtual space far-field laser.
Described measured target 5 is installed on described measured target bracing frame 106.
Sliding in described arc lower tracks for being driven by described motor in described lower motion portion 104, adjusts the roll angle of described measured target 5.
Arcuate movement track sliding on described for being driven by described motor in described upper motion portion 103, adjusts the angle of pitch of described measured target 5;
Described rotating part is used for being driven by described motor rotating, and adjusts the orientation rotation angle of described measured target 5.
The subsystem of attitude-simulating shown in Fig. 21 is made up of base, lower circular motion track, slew gear, upper circular motion track and model support bar etc., the lower arc orbit of attitude-simulating subsystem 1, slew gear, upper circular motion track can allow test objective do orientation rotation, pitching and rolling rotation around its barycenter, coordinate with Laser emission/receiving subsystem 2, virtual space laser is to the irradiation position angle of test objective, the angle of pitch and roll angle change.
As a kind of embodiment, described low reflect/scatter background is set at least cover the irradiation hot spot shining directly into when laser irradiates described measured target and laboratory wall is formed.
Alternatively, described low reflect/scatter background is black light-absorbing cloth.Low reflect/scatter background, by by the extinction black cloth of test with alternative, is made up of bilayer, and institute's layout area covers laser and shines directly into the irradiation hot spot that laboratory wall is formed.
As a kind of embodiment, as shown in Figure 4, described central management control subsystem comprises experimental data base, controlling test administration module, digital sampling and processing and monitoring module.
Described experimental data base be used for the described test data that test process produces typing, browse, delete, associate.
Described controlling test administration module is used for control survey equipment automatization and completes test process.Described controlling test administration module needs to control drive motor according to test, changes the attitude of measured target, so control measured target be observed angle.
Described digital sampling and processing be used for setting data acquisition condition, and the collection of test data, process, and test result display.
Described monitoring module is used for carrying out real time monitoring to Laser emission/receiving subsystem and attitude-simulating subsystem.
As a kind of embodiment, described experimental data base comprises equipment library, material depot, object library, model bank.
Described equipment library, for storing the relevant information of device therefor, comprises device numbering, model, date of manufacture, attribute classification, such as the laser instrument of multiple spectrum width and centre frequency, in order to alternative during test.Material depot for storing the numbering of adopted material and corresponding attribute, as the camera lens of different focal or collimating mirror numbering.Object library, for storing different targets to be measured, may need the target to be measured of difformity or the material used according to test request.Information needed for extracting according to the equipment changed in test process and current experiment data correlation, record experimentation.
As a kind of embodiment, as shown in Figure 4, described digital sampling and processing comprises collecting device, gathers control module and data processing unit; Described collecting device responds the real-time display that described collection control module completes the collection of measuring-signal, record, process and result,
Described collection control module is used for sending acquisition instructions to described collecting device,
Described data processing unit is used for carrying out secondary coding to the image data received from described collecting device, superposition record test data, and test result display.
Described digital sampling and processing has acquisition and processing two parts function.Described collecting device comprises Visible-light CCD, nitometer, illumination tester as shown in Figure 4.Gather control module and acquisition instructions is sent to the collecting device of test data, for setting acquisition time interval, selecting acquisition target etc.Data processing unit is used for carrying out secondary coding, the process such as superposition record test data, finally optional then result display to gathering the experimental data obtained.
As a kind of embodiment, described monitoring module comprises indoor ball-shaped camera.This monitoring module is used for the situation of operating personnel observation experiment position intuitively in pulpit, extremely first can check the video recording of video camera, checking whether the obvious fault occurring such as measured target overturning as there is experimental data.
Described central management control system is made up of experimental data base, controlling test ADMINISTRATION SUBSYSTEM, digital sampling and processing, data processing module and monitoring module, wherein said experimental data base is used for all data that storing process produces, comprising equipment library, material depot, object library, model bank etc., the typing of database can be completed, browse, delete, association etc.; Described controlling test administration module is made up of management software and corresponding hardware platform, and control survey equipment automatization completes test process; Described digital sampling and processing comprises collecting device and gathers control software design, completes the real-time display of the collection of measuring-signal, record, process and result, and carries out secondary coding to collection echo data, superposition test data sheet information; Described monitoring module adopts indoor ball-shaped camera, carries out real time monitoring to testing equipment and operational process thereof, for the protection of the analysis of equipment and abnormal data.Described digital sampling and processing can also carry out the analysis of abnormal data.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.In addition, obviously " comprising " one word do not get rid of other unit or step, odd number does not get rid of plural number.Multiple unit of stating in system claims or device also can be realized by software or hardware by a unit or device.
The invention solves the laser scattering properties problem in the different attitude situation of analogue measurement extraterrestrial target in laboratory conditions, test result can provide rational suggestion for space-orbit test mission planning, and the development for laser acquisition sensor provides reliable foundation.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. an extraterrestrial target laser light scattering dynamical property test system, is characterized in that, comprises Laser emission/receiving subsystem, attitude-simulating subsystem, low reflect/scatter background and central management control subsystem;
Described Laser emission/receiving subsystem is used for, and forms virtual space far-field laser, thus carries out laser irradiation to measured target and receive the scattered light of described measured target scattering;
Described attitude-simulating subsystem is for carrying described measured target, and the described measured target of adjustment is relative to the attitude of described Laser emission/receiving subsystem;
The reflect/scatter echo that described low reflect/scatter background produces for reducing laser direct irradiation background area in test process;
Described central management control subsystem is used for monitoring described Laser emission/receiving subsystem, attitude-simulating subsystem, and gather, store, analyzing test data and showing test results.
2. a kind of extraterrestrial target laser light scattering dynamical property test system according to claim 1, it is characterized in that, described Laser emission/receiving subsystem comprises laser beam emitting device, laser receiver, collimating mirror, power supply and bogey;
Described laser beam emitting device and described laser receiver are installed on described bogey, and are connected with described power supply;
Described laser beam emitting device comprises laser instrument and beam expanding lens, and described laser instrument is in order to Emission Lasers, and described laser expands through described beam expanding lens and enters described collimating mirror, is formed described virtual space far-field laser by outgoing after described collimating mirror collimation;
Described laser receiver comprises reception camera lens and return laser beam receiver, described return laser beam receiver receives described scattered light by described reception camera lens, thus acquisition echo data, described return laser beam receiver is also in order to be sent to described central management control subsystem by described echo data.
3. a kind of extraterrestrial target laser light scattering dynamical property test system according to claim 2, it is characterized in that, described collimating mirror diameter is 1 meter, focal length is 5 meters, the optical axis of described collimating mirror and laser optical path horizontal deflection 8 degree, outgoing after incident laser collimation is formed described virtual space far-field laser, described measured target is arranged on in the light path at described collimating mirror minute surface 27 meters of, described virtual space far-field laser is 3.2 meters at the hot spot homogeneity range diameter at described measured target place, and the circumscribed enveloping diameter of described measured target is less than 3 meters.
4. a kind of extraterrestrial target laser light scattering dynamical property test system according to claim 1, it is characterized in that, described attitude-simulating subsystem comprises base, lower circular motion track, slew gear, upper circular motion track, upper motion portion, lower motion portion, measured target bracing frame and for driving some drive motor of described upper operation portion, lower motion portion, slew gear;
Described slew gear comprises chassis and rotating part, and described rotating part rotates relative to the central shaft on described chassis;
Described lower circular motion track is fixedly installed on described base, described chassis is connected with described lower circular motion track by described lower motion portion, described rotating part is fixedly connected with described upper circular motion track, described measured target bracing frame is connected with described upper circular motion track by described upper motion portion, and described lower circular motion track side surfaces is vertical with described virtual space far-field laser;
Described measured target is installed on described measured target bracing frame;
Sliding in described arc lower tracks for being driven by described motor in described lower motion portion, adjusts the roll angle of described measured target;
Described upper motion portion is used for being driven by described motor arcuate movement track sliding on described, adjusts the angle of pitch of described measured target;
Described rotating part is used for being driven by described motor rotating, and adjusts the orientation rotation angle of described measured target.
5. a kind of extraterrestrial target laser light scattering dynamical property test system according to claim 1, it is characterized in that, described low reflect/scatter background is set at least cover the irradiation hot spot shining directly into when laser irradiates described measured target and laboratory wall is formed.
6. a kind of extraterrestrial target laser light scattering dynamical property test system according to claim 5, is characterized in that, described low reflect/scatter background is black light-absorbing cloth.
7. a kind of extraterrestrial target laser light scattering dynamical property test system according to claim 1, it is characterized in that, described central management control subsystem comprises experimental data base, controlling test administration module, digital sampling and processing and monitoring module;
Described experimental data base be used for the described test data that test process produces typing, browse, delete, associate;
Described controlling test administration module is used for control survey equipment automatization and completes test process;
Described digital sampling and processing be used for setting data acquisition condition, and the collection of test data, process, and test result display;
Described monitoring module is used for carrying out real time monitoring to Laser emission/receiving subsystem and attitude-simulating subsystem.
8. a kind of extraterrestrial target laser light scattering dynamical property test system according to claim 7, it is characterized in that, described experimental data base comprises equipment library, material depot, object library, model bank.
9. a kind of extraterrestrial target laser light scattering dynamical property test system according to claim 7, is characterized in that, described digital sampling and processing comprises collecting device, gathers control module and data processing unit; Described collecting device responds the real-time display that described collection control module completes the collection of measuring-signal, record, process and result,
Described collection control module is used for sending acquisition instructions to described collecting device,
Described data processing unit is used for carrying out secondary coding to the image data received from described collecting device, superposition record test data, and test result display.
10. a kind of extraterrestrial target laser light scattering dynamical property test system according to claim 7, it is characterized in that, described monitoring module comprises indoor ball-shaped camera.
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Application publication date: 20151007 |