CN106896497A - The calculation method of adjustable storehouse moral mirror pilot angle in high precision - Google Patents

The calculation method of adjustable storehouse moral mirror pilot angle in high precision Download PDF

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Publication number
CN106896497A
CN106896497A CN201611232485.2A CN201611232485A CN106896497A CN 106896497 A CN106896497 A CN 106896497A CN 201611232485 A CN201611232485 A CN 201611232485A CN 106896497 A CN106896497 A CN 106896497A
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CN
China
Prior art keywords
mirror
formula
angle
moral
storehouse moral
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Pending
Application number
CN201611232485.2A
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Chinese (zh)
Inventor
薛乐堂
姜润强
王红宣
陈健
杜璧秀
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Application filed by Changchun Institute of Optics Fine Mechanics and Physics of CAS filed Critical Changchun Institute of Optics Fine Mechanics and Physics of CAS
Priority to CN201611232485.2A priority Critical patent/CN106896497A/en
Publication of CN106896497A publication Critical patent/CN106896497A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0012Optical design, e.g. procedures, algorithms, optimisation routines

Abstract

The calculation method of adjustable storehouse moral mirror pilot angle, is related to fields of measurement in high precision, can obtain accurate adjustable storehouse moral mirror pilot angle expression formula.The method is:In laser transmitting system, shoot laser of the incident laser after multiple storehouse moral mirrors and adjustable storehouse moral mirror reflect is oriented parallel to boresight direction, eventually points to the extraterrestrial target being located on imaging optical system optical axis extended line;When the azimuth that extraterrestrial target deviates the optical axis is A, deviates the angle of pitch of the optical axis for E, by adjusting adjustable storehouse moral mirror around its own azimuth axis rotation β angle, after rotating γ angles further around its own pitch axis, make shoot laser pointing space target again;The β angles, the solution formula such as formula (2) at γ angles, formula (3) are shown, and A, E are known: The pilot angle of adjustable storehouse moral mirror is solved with formula (2), (3), high shoot laser pointing accuracy can be obtained under any turntable tracking error.

Description

The calculation method of adjustable storehouse moral mirror pilot angle in high precision
Technical field
The present invention relates to field of measuring technique, and in particular to a kind of calculation method of the adjustable storehouse moral mirror pilot angle of high accuracy.
Background technology
In electro-optical countermeasure svstem, conventional turn back microscope group and storehouse moral microscope group change laser beam direction finally make laser light Beam is along the direction outgoing parallel to the optical axis.In laser transmitting system wherein, incident laser passes sequentially through storehouse moral mirror one 1, storehouse Moral mirror 22, storehouse moral mirror 33, storehouse moral mirror 44, adjustable storehouse moral mirror 5 turn back after outgoing, its principle is as shown in Figure 1.Pointing turntable After the optical axis deviates tracked target, can just correct what is caused by the tracking error of pointing turntable by adjusting adjustable storehouse moral mirror 5 Shoot laser error in pointing, makes outgoing laser alignment tracked target, so as to improve the pointing accuracy of shoot laser.Adjustable storehouse moral Mirror 5 has the advantages that small volume, compact conformation, fast response time, high precision, bandwidth are high, and size and the tracking of its pilot angle turn The tracking error of platform carries out the high precision solution core that adjustable storehouse moral mirror 5 is controlled at last to pilot angle and asks into certain functional relation Topic.
At present, it is general using the pilot angle of the adjustable storehouse moral mirror 5 of actual measurement and the error in pointing of shoot laser and to the data obtained The method being fitted obtains the functional relation of description both sides relation, and this method acquired results are not accurate enough, there is certain mistake Difference, it is impossible to shoot laser pointing accuracy higher is all obtained under any turntable tracking error.
The content of the invention
In order to obtain accurate adjustable storehouse moral mirror pilot angle expression formula, the present invention provides a kind of adjustable storehouse moral mirror control of high accuracy The calculation method at angle processed.
The present invention is as follows to solve the technical scheme that technical problem is used:
The calculation method of the adjustable storehouse moral mirror pilot angle of high accuracy of the invention, comprises the following steps:
Step one, in imaging optical system, extraterrestrial target images in CCD target surfaces, when extraterrestrial target deviate the optical axis side When parallactic angle is A, the angle of pitch of the deviation optical axis is E, the picture of extraterrestrial target deviates MDa, center of CCD target surfaces picture in the azimuth direction Unit, in the pitch direction MDe, center of deviation CCD target surfaces pixel, relation such as formula (1) institute between described MDa, MDe and A, E Show:
In formula (1):The unit of A, E is rad, and the unit of pixel dimension is micron, the unit of imaging optical system focal length It is millimeter;
Step 2, in laser transmitting system, incident laser is anti-through turn back mirror, storehouse moral microscope group and adjustable storehouse moral mirror of multiple After penetrating, along the direction outgoing parallel to the optical axis, and the extraterrestrial target being located on imaging optical system optical axis extended line is eventually pointed to; When extraterrestrial target deviate the optical axis azimuth for A, deviate the optical axis the angle of pitch be E when, by adjust adjustable storehouse moral mirror around its from Body azimuth axis rotation β angle, after rotating γ angles further around its own pitch axis, makes shoot laser pointing space target again;The β Angle, the solution formula such as formula (2) at γ angles, formula (3) are shown:
The beneficial effects of the invention are as follows:The present invention in order to obtain accurate adjustable storehouse moral mirror pilot angle expression formula, by building The Mathematical Modeling of relation between the vertical adjustable storehouse moral mirror pilot angle of description and shoot laser direction, and be analyzed, derive form The analytic equation formula (2) and formula (3) of succinct adjustable storehouse moral mirror pilot angle.Asked using formula (2) and formula (3) by facts have proved The pilot angle of adjustable storehouse moral mirror is solved, high shoot laser pointing accuracy can be obtained under any turntable tracking error.
Brief description of the drawings
Fig. 1 is laser transmitting system schematic diagram.
Fig. 2 is that tracking error A, E resolves schematic diagram in imaging optical system.
Fig. 3 resolves schematic diagram for adjustable storehouse moral mirror pilot angle of the invention.
Fig. 4 is adjustable storehouse moral mirror reflex schematic diagram.
In figure:1st, storehouse moral mirror one, 2, storehouse moral mirror two, 3, storehouse moral mirror three, 4, storehouse moral mirror four, 5, adjustable storehouse moral mirror, 6, CCD targets Face.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
In order to obtain the expression formula of the accurate adjustable pilot angle of storehouse moral mirror 5, the present invention derives the succinct adjustable storehouse of form The analytic equation of the pilot angle of moral mirror 5.As shown in Figure 3 and Figure 4, the resolving side of the adjustable storehouse moral mirror pilot angle of high accuracy of the invention Method, its detailed process is as follows:
Step one, the tracking error for calculating tracking table
As shown in Fig. 2 in imaging optical system, extraterrestrial target P2It is imaged on CCD target surfaces 6.As extraterrestrial target P2 When on the optical axis extended line of imaging optical system, the center of CCD target surfaces 6 will be imaged in, if extraterrestrial target P2Deviate optical axis δ angles I.e. the tracking error of tracking table is A (extraterrestrial target P2Deviate the optical axis azimuth), E (extraterrestrial target P2Deviate the pitching of the optical axis Angle) when, extraterrestrial target P2Picture deviate MDa, 6 center of CCD target surfaces pixel in the azimuth direction, deviate CCD in the pitch direction MDe, 6 center of target surface pixel.Described MDa and MDe is respectively orientation miss distance and pitching miss distance, and each moment Orientation miss distance MDa, pitching miss distance MDe are known, therefore conventional orientation miss distance MDa, pitching miss distance MDe are represented Tracking error A, E of tracking table.Orientation miss distance MDa, between pitching miss distance MDe and tracking error A, E of tracking table Relation such as formula (1) shown in:
In formula (1):The unit of tracking error A, E of tracking table is rad, and the unit of pixel dimension is micron (μm), into As the unit of optical system focal length is millimeter (mm).
Step 2, the pilot angle for calculating adjustable storehouse moral mirror 5
As shown in Figure 1 and Figure 4, in laser transmitting system, debug using multiple storehouse moral mirrors and by optics, made incident sharp Light is incided in initial position (i.e. a in Fig. 3 along the direction parallel to trunnion axis1Place) adjustable storehouse moral mirror 5 on, through adjustable Shoot laser after storehouse moral mirror 5 reflects is oriented parallel to boresight direction, points to and is located on imaging optical system optical axis extended line Extraterrestrial target P2.Extraterrestrial target P2After deviateing optical axis δ angles, adjustable storehouse moral mirror 5 needs to adjust its own pilot angle, so that parallel Shoot laser after the incident laser of trunnion axis reflects through adjustable storehouse moral mirror 5 being capable of pointing space target P again2
As shown in figure 3, setting up space coordinates, in space coordinates, Z axis are trunnion axis, are also incident laser Incident direction, X-axis is the optical axis, is also the exit direction of shoot laser.
When adjustable storehouse moral mirror 5 is in initial position a1During place, the pitch axis ab and trunnion axis of adjustable storehouse moral mirror 5 are into 45 degree Angle, pitch axis ab is located on straight line z1, straight line z1In XOZ planes;Azimuth axis cd overlaps with Y-axis, and azimuth axis cd is located at straight Line y1On, straight line y1In Y-axis;Normal oe is located at straight line x1On, straight line x1In XOZ planes.
Adjustable storehouse moral mirror 5 is adjusted first around its own azimuth axis cd rotation βs angle, and now, adjustable storehouse moral mirror 5 is in position a2 Place, the pitch axis ab of adjustable storehouse moral mirror 5 is located at straight line z2On, straight line z2In XOZ planes;Azimuth axis cd overlaps with Y-axis, side Position axle cd is located at straight line y2On, straight line y2In Y-axis, straight line y2With straight line y1Overlapped with Y-axis;Normal oe is located at straight line x2 On, straight line x2In XOZ planes.Now, straight line x1With straight line x2Between angle be β angles, straight line z1With straight line z2Between Angle is also β angles.
Then adjustable storehouse moral mirror 5 is adjusted again around its own pitch axis ab rotation γ angles, and now, adjustable storehouse moral mirror 5 is in position Put a3Place, the pitch axis ab of adjustable storehouse moral mirror 5 is located at straight line z3On, straight line z3With straight line z2Overlap, straight line z3Positioned at XOZ planes It is interior;Azimuth axis cd is located at straight line y3On;Normal oe is located at straight line x3On.Now, straight line x2With straight line x3Between angle be γ Angle, straight line y3Angle between Y-axis is also γ angles.
By adjusting adjustable storehouse moral mirror 5 first around its own azimuth axis cd rotation βs angle, γ is rotated further around its own pitch axis ab Behind angle, shoot laser can be made to be directed away from the extraterrestrial target P at optical axis δ angles again2.Above-mentioned β angles solution formula such as formula (2) institute Show, shown in the solution formula such as formula (3) at γ angles:
In formula (2) and formula (3):A and E are respectively extraterrestrial target P2Deviate azimuth and the angle of pitch of the optical axis, the value of A and E Can be solved according to formula (1).
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (1)

1. the calculation method of the adjustable storehouse moral mirror pilot angle of high accuracy, it is characterised in that comprise the following steps:
Step one, in imaging optical system, extraterrestrial target (P2) CCD target surfaces (6) are imaged in, as extraterrestrial target (P2) deviate regard When the azimuth of axle is A, the angle of pitch of the deviation optical axis is E, extraterrestrial target (P2) picture deviate CCD target surfaces in the azimuth direction (6) MDa, center pixel, in the pitch direction deviation CCD target surface (6) MDe, center pixel, between described MDa, MDe and A, E Relation such as formula (1) shown in:
In formula (1):The unit of A, E is rad, and the unit of pixel dimension is micron, and the unit of imaging optical system focal length is milli Rice;
Step 2, in laser transmitting system, incident laser is anti-through turn back mirror, storehouse moral microscope group and adjustable storehouse moral mirror (5) of multiple After penetrating, along the direction outgoing parallel to the optical axis, and the extraterrestrial target being located on imaging optical system optical axis extended line is eventually pointed to (P2);As extraterrestrial target (P2) deviate the optical axis azimuth for A, deviate the optical axis the angle of pitch be E when, by adjusting adjustable storehouse moral Mirror (5) after rotating γ angles further around its own pitch axis, makes shoot laser pointing space again around its own azimuth axis rotation β angle Target (P2);The β angles, the solution formula such as formula (2) at γ angles, formula (3) are shown:
CN201611232485.2A 2016-12-28 2016-12-28 The calculation method of adjustable storehouse moral mirror pilot angle in high precision Pending CN106896497A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109471252A (en) * 2018-11-02 2019-03-15 北京仿真中心 A kind of complexity optical scene spatial movement simulator
CN114755818A (en) * 2022-05-19 2022-07-15 中国科学院长春光学精密机械与物理研究所 Device and method for adjusting German optical path of large-aperture telescope warehouse

Citations (2)

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US5115355A (en) * 1990-11-27 1992-05-19 Thermo Electron Technologies Corp. Compact coude optics system
US20070229994A1 (en) * 2006-03-30 2007-10-04 Raytheon Company Pointable optical system with coude optics having a short on-gimbal path length

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115355A (en) * 1990-11-27 1992-05-19 Thermo Electron Technologies Corp. Compact coude optics system
US20070229994A1 (en) * 2006-03-30 2007-10-04 Raytheon Company Pointable optical system with coude optics having a short on-gimbal path length

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
乔健 等: ""水平式两轴转台中库德光路的快速装调"", 《光学 精密工程》 *
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109471252A (en) * 2018-11-02 2019-03-15 北京仿真中心 A kind of complexity optical scene spatial movement simulator
CN109471252B (en) * 2018-11-02 2021-09-10 北京仿真中心 Complex optical scene space motion simulation device
CN114755818A (en) * 2022-05-19 2022-07-15 中国科学院长春光学精密机械与物理研究所 Device and method for adjusting German optical path of large-aperture telescope warehouse

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