Abstract

In order to accurately measure the target position in the short range, this paper presents a measurement method based on the laser and magnetism composite (LM) mechanism. A single-beam pulsed laser is used to measure the target distance dynamically. The magnetic sensor is used to acquire the scanning period signal, and the azimuth information is calculated by the LM signal. A variable step-size least mean square algorithm with a step memory effect is designed to reduce the interference. The numerical simulation and experimental results show that the method of azimuth measurement has a good measurement accuracy and anti-interference. In addition, this short-range azimuth measurement has a great potential in small moving bodies.

© 2018 Optical Society of America

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