Novel area array laser radar

Abstract

The invention discloses a novel area array laser radar. The area array laser radar comprises a laser array, a detector array, a laser light path adjusting device and a signal light light path adjusting device. The laser array is a linear array, and the laser array is arranged in the first direction. The laser light path adjusting device comprises multiple planar lightwave circuits PLCs stacked inthe first direction, the laser light path adjusting device is arranged in front of the laser array, the detector array is arranged in the second direction, the signal light light path adjusting devicecomprises multiple planar lightwave circuits PLCs stacked in the second direction, and the first direction is perpendicular to the second direction.

Description

technical field [0001] The invention relates to the field of optics, in particular to a novel area array laser radar. Background technique [0002] Lidar is a radar system that emits laser beams to detect characteristic quantities such as the position and speed of targets. In terms of working principle, there is no fundamental difference from microwave radar: the detection signal (laser beam) is sent to the target, and then the received signal (target echo) reflected from the target is compared with the transmitted signal, and after appropriate processing , the relevant information of the target can be obtained, such as target distance, azimuth, height, speed, attitude, and even shape parameters, so as to detect, track and identify aircraft, missiles and other targets. [0003] Lidar can be generally divided into two parts: laser ranging technology and scanning technology. Among them, laser ranging technology mainly solves the problem of distance measurement, while imaging...

AI Technical Summary

Problems solved by technology

Mems are similar to mechanical scanning, the lens size is small, the mechanical properties are good, but there are still rotating parts, which will still be affected

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