Research On The Attitude Measurement System Of Spatial Moving Target

In the testing task of shooting range, we need to track the flying target, survey its moving parameters and then register them. Spatial flying target's attitude reflect its moving state in the sky, and by which we used to judge the state of the flying target and improve the tracking system. As a result, the survey of the target's attitude has a very important sense. In order to carry out this aim, this paper designs a complete system which was used to test the attitude of the flying target quickly and steady.This paper advanced a scheme to survey the attitude of the flying target at the beginning of the launch refer to the technic of photographic measurement. This scheme first filter the spectrum which embarrass the quality of image-forming. Then take photos of the flying target with vidicon. Finally, design proper arithmetic to calculate the attitude of the target.First of all, we designed a system to test the spectrum of the flying target and its circumstance. Based on the spectrum we surveyed, we choose proper spectral filter on the principle that"filter the spectrum which embarrass the quality of image-forming and permeate the spectrum which is propitious to the image-forming". Then we can obtain an image with right contrast, brightness and in which the profile of the flying target is obviously.In the next place, we made a device to filter the spectrum. In this device, we proposes a auto-switch system of spectral filter which use stepper-motor to drive the turnplate with several spectral filters. We achieve the goal that the switch of the spectral filter steady, rapidly and conveniently.The third, we use image-processing technology to improve the quality of the image, and then pick the target up from the image. After that, we design a proper arithmetic to calculate the attitude parameters from the image. All of those works are real-time, and so we attained our goal to survey the attitude of the flying target on the beginning of the launch quickly and with high precision.Finally, according to the testing task of shooting range, we proved the correctness and effectiveness of our scheme.