Track Acquisition Method of Short Path Moving Target Based on Single Observation Post Digital Telescope

Abstract

The invention provides a method for obtaining the track of a moving target with a short route on a single observation post based on a single observation post digital telescope, which solves the problem of locating a low-altitude, ultra-low-altitude, short-range maneuvering target and compensates for a low-altitude radar detection blind spot. The "observation post" hand-held digital telescope records the original air situation, which only contains two coordinate information of azimuth and elevation angle, and there are large errors in the information data. The present invention first utilizes the azimuth angle information to judge the target of the small route shortcut, and then establishes the mathematical model of the change law of the height angle of the target of the small route shortcut, utilizes the observation value of the height angle, and adopts a non-linear function fitting algorithm to estimate the change parameter of the target height angle. Based on this, the true elevation angle of the target is estimated, and the target distance is further estimated to obtain the target track. The invention is applicable to the air situation system of the ground observation post and provides target indication for the ground radar.

Description

technical field [0001] The invention relates to a method for obtaining the track of a moving target with a short-range short-range route based on a single-observation post digital telescope, which belongs to the field of low-altitude target detection, solves the positioning problem of low-altitude and ultra-low-altitude short-range short-range short-range flight maneuvering targets, and makes up for low-altitude radar detection blind spots. Applicable to ground observation post air situation system, providing target indication for ground radar. Background technique [0002] Low-altitude target detection is mainly dominated by technically complex high-end products such as low-altitude radar and photoelectric composite detection equipment. Such products are expensive, technically complex, and limited in use and promotion. Due to various factors such as electromagnetic interference, earth curvature, and complex terrain, ground-based radars have a short detection range for low-...

Images