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Bionic compound eye type laser radar system and method

A bionic compound eye and lidar technology, which is applied in the radio wave measurement system, electromagnetic wave re-radiation, utilization of re-radiation, etc., can solve the problems of limited field of view for distance image reception, complex front-end optical components, and limited array pixels.

Inactive Publication Date: 2021-03-09
TIANJIN UNIV
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Problems solved by technology

Although this method is simple in principle and structure, it needs to complete the correction of aberrations, which makes the front-end optical components tend to be complicated and limits the field of view of the distance image receiving
In addition, due to factors such as limited array pixels and devices susceptible to environmental stray light, it is difficult to guarantee the quality of distance images

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  • Bionic compound eye type laser radar system and method
  • Bionic compound eye type laser radar system and method
  • Bionic compound eye type laser radar system and method

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] The invention provides a bionic laser radar device system based on insect compound eyes, which is mainly composed of a planar pulse array laser emitting system, an echo receiving system and a signal processing unit, wherein the planar pulse array laser emitting system contains a pulse laser, and is used for Optical devices for collimation, beam splitting, beam expansion and beam splitting; the echo receiving system includes structures such as curved microlens arrays, fiber optic cones, and discrete avalanche diode arrays (discrete APD arrays); the signal processing units are set in parallel, and a single avalanche diode The processing circuit mainly includes logic units such as...

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Abstract

The invention discloses a bionic compound eye type laser radar system and method, and the system comprises a plane pulse array laser transmitting system, an echo receiving system, and a signal processing unit. The planar pulse array laser emission system consists of a pulse laser, a collimating lens, a spectroscope, a beam expanding lens group, an aperture diaphragm array and a planar micro lens array which are sequentially arranged according to a light path sequence, and is used for modulating parallel array light from a single-point pulse laser light source; the echo receiving system consists of a curved surface micro lens array, an optical fiber light cone and a photoelectric detector which are arranged in sequence, and is used for outputting a spatial distance image of wide-angle distance measurement; and the signal processing unit obtains a required spatial distance image through processing.

Description

technical field [0001] The invention belongs to the field of laser large-scale length measurement, in particular to a bionic compound eye laser radar system and method. Background technique [0002] Lidar technology is an active detection technology that can accurately and quickly obtain target three-dimensional space information. Compared with passive imaging systems and microwave imaging systems, it has strong line angle resolution, high measurement accuracy, strong anti-interference ability, and is not affected by light. Due to the advantages of limited conditions and easy lightweight, it is widely used in military, aerospace and civilian fields such as environmental science, laser guidance, automatic driving, and intelligent transportation. [0003] Lidar can be divided into scanning imaging and area array snapshot imaging according to the basic method of laser coverage. The former includes three types: mechanical, MEMS and OPA, respectively using mechanical scanning op...

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Application Information

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IPC IPC(8): G01S17/894G01S17/14G01S7/4865G01S7/481
CPCG01S7/481G01S7/4865G01S17/14G01S17/894
Inventor 宋乐岳钧百侯宇鹏房丰洲
Owner TIANJIN UNIV
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