Double-wedge prism imaging tracking device based on the adaptive boresight adjustment principle

Abstract

A double-wedge prism device has been used in various imaging detection applications due to its high precision and strong anti-disturbance capability. In this paper, a self-adaptation double-wedge prism boresight adjustment principle suitable for both far-field and near-field target tracking is proposed. In order to realize this application, an adaptive variable boresight imaging tracking device is designed specifically. Then a tracking error model is established, and dynamic simulation, error evaluation, and sensitivity analysis are carried out according to the design objective. The experimental results show that the pitch angle deviation and azimuth angle deviation of the device are less than 6′, and the blind zone can be eliminated by adding a third wedge prism, thus achieving high-precision boresight adjustment and tracking.