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DLP signal receiving system suitable for laser radar and adaptive adjustment method of DLP signal receiving system

An adaptive adjustment and signal receiving technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as inability to fully and effectively receive laser signals, achieve good reception effects, good anti-interference characteristics, and improve search efficiency

Active Publication Date: 2017-11-28
苏州岭纬智能科技有限公司
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Problems solved by technology

When the scanning coverage of the laser radar is large, the traditional coaxial receiver is mainly suitable for the rangefinder, and due to its own limitations, it may not be able to fully and effectively receive the laser signal of the scanning coverage

Method used

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  • DLP signal receiving system suitable for laser radar and adaptive adjustment method of DLP signal receiving system
  • DLP signal receiving system suitable for laser radar and adaptive adjustment method of DLP signal receiving system

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Embodiment Construction

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and 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.

[0041] Such as figure 1 and figure 2As shown, a DLP signal receiving system suitable for laser radar of the present invention, the laser transmitter 10 emits a laser signal through the laser scanning mirror 11 to form a laser scanning area 30; it also includes scanning points for the laser scanning area 30 A DLP signal receiver 20 for signal acquisition, the DLP signal receiver 20 includes a plurality of DLP micromirrors 21 arranged in an array, and the laser reflection signal of each scanning point is obtained by the corresponding DLP micromirrors 21...

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Abstract

The invention discloses a DLP signal receiving system suitable for the laser radar and an adaptive adjustment method of the DLP signal receiving system. A laser emitter emits laser signals outwards through a laser scanning mirror, so laser scanning regions are formed. A DLP signal receiver carries out signal acquisition on scanning points of the laser scanning regions, and comprises multiple DLP micro-mirrors arranged in a matrix manner. The laser reflection signal of each scanning point is tracked and received by more than one DLP micro-mirror in the DLP micro-mirrors arranged in the matrix manner. The laser emitter and the DLP signal receiver are arranged in an integrated manner or in a neighboring manner. The DLP micro-mirrors arranged in the matrix manner are used for synchronously tracking and receiving laser reflection signals of the laser radar scanning regions, deflection of the DLP micro-mirror arrays and synchronization of scanning of the laser radar are controlled, and imaging regions of the scanning target reflection signals are selectively projected to a photoelectric sensor, so the signal to noise ratio for increasing the laser reflection signals of the laser radar scanning regions can be increased and better anti-interference characteristics are achieved simultaneously.

Description

technical field [0001] The invention relates to the technical field of laser radar, in particular to a DLP signal receiving system suitable for laser radar and a corresponding adaptive adjustment method. Background technique [0002] LiDAR (Light Laser Detection and Ranging), short for laser detection and ranging system, is a radar that uses lasers as a radiation source. Lidar is the product of the combination of laser technology and radar technology, including at least a transmitter and a receiver. Transmitters are various forms of lasers, such as carbon dioxide lasers, neodymium-doped yttrium aluminum garnet lasers, semiconductor lasers and wavelength-tunable solid-state lasers, etc.; receivers use various forms of photodetectors, such as photomultiplier tubes, semiconductor photoelectric Diodes, avalanche photodiodes, infrared and visible light multiplex detection devices, etc. [0003] Among them, solid-state lidar has scanning characteristics such as large scanning co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/486
CPCG01S7/4863G01S7/4868
Inventor 林坚黎洪
Owner 苏州岭纬智能科技有限公司
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