Distance Measurement using Active-Pulse Television Measuring Systems with Automatic Scanning of Space by Depth

This article is devoted to the development and research of special methods for measuring the distance to objects that are used in active-pulse television measuring systems. The principles of distance measurement in such systems are based on working with the active vision area - the observed layer of space. The principle of distance measurement using automatic scanning of space by depth is described. The principle described in this paper, due to the use of a larger number of independent measurement sections, makes it possible to use these sections with a greater steepness level. The resulting independent local measurement sections are combined into one measurement section with a large number of brightness levels, which leads to increased resolution by distance. The simulation results of the automatic method of space scanning by depth using the combination of two measuring sections obtained using a multi-area distance measuring method with and without reducing of the photodetector’s gating pulse duration, and a multi-area distance measuring method with modulation involved are presented. Normalized measuring functions were obtained (for shifted and unbiased pairs of active vision areas for each method considered, as well as measuring functions obtained after the calibration and combining stage, also graphs of the method’s absolute errors in distance measuring were obtained. As a result, simulation showed the consistency of the proposed distance measurement principles.