High-precision adjustable Kuder mirror control angle solving method

Abstract

The method for solving the control angle of the high-precision adjustable Kudt mirror relates to the field of measurement, and can obtain an accurate expression of the control angle of the adjustable Kudd mirror. The method is as follows: in the laser emitting system, the incident laser light is reflected by multiple Kudd mirrors and adjustable Kudd mirrors, and the outgoing laser direction is parallel to the direction of the visual axis, and finally points to the space target located on the extension line of the visual axis of the imaging optical system. ; When the azimuth angle of the space object deviated from the visual axis is A, and the pitch angle deviated from the visual axis is E, by adjusting the adjustable Kudd mirror to rotate β angle around its own azimuth axis, and then rotate γ angle around its own pitch axis, Make the outgoing laser point to the space target again; the solution formulas of the β angle and γ angle are shown in formula (2) and formula (3), and A and E are known: Using formulas (2) and (3) to solve the control angle of the adjustable Kudt mirror can achieve extremely high pointing accuracy of the outgoing laser light under any turntable tracking error.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a method for calculating the control angle of a high-precision adjustable Coud mirror. Background technique [0002] In the photoelectric countermeasure system, the deflecting mirror group and the Coud mirror group are commonly used to change the direction of the laser beam, and finally make the laser beam exit in a direction parallel to the visual axis. In the laser emitting system, the incident laser light passes through the Kudt mirror 1, the Kudt mirror 2 2, the Kudt mirror 3 3, the Kudt mirror 4 4, and the adjustable Kudt mirror 5 in sequence before being emitted. The principle is as follows figure 1 shown. After the visual axis of the tracking and aiming turntable deviates from the tracked target, the pointing error of the outgoing laser caused by the tracking error of the following and aiming turntable can be corrected by adjusting the adjustable Kudt mirror 5, so tha...

AI Technical Summary

Problems solved by technology

[0003] At present, the method of measuring the control angle of the adjustable Coud mirror 5 and the pointing error of the outgoing laser and fitting the obtained data is generally used to obtain the functional relationship describing the relationship between the two. The results obtained by this method are not accurate enough, and there are certain errors. Unable to achieve high pointing accuracy of the outgoing laser beam under any turntable tracking error

Images