Laser radar orthogonal receiving and transmitting array

A laser radar and array technology, applied in the field of laser radar orthogonal transceiver array, can solve the problems of unfavorable mass production, difficulty in manufacturing and signal configuration, and high cost, and achieve the goal of reducing production costs, reducing the number of phase shifters, and improving integration. Effect

Pending Publication Date: 2021-11-23
长沙思木锐信息技术有限公司
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Problems solved by technology

Traditional mechanical scanning is expensive and not conducive to mass production; the existing LiDAR solid-state two-dimensional scanning requires an N×N phase shifter array, and with the improvement of measurement accuracy and area, the number of phase shifters will be significantly increased. increases, which can cause difficulties in manufacturing and signal configuration

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  • Laser radar orthogonal receiving and transmitting array
  • Laser radar orthogonal receiving and transmitting array
  • Laser radar orthogonal receiving and transmitting array

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] refer to figure 1 , figure 1 It is a schematic diagram of the basic principle of a laser radar orthogonal transceiver array provided by an embodiment of the present invention.

[0060] The laser radar ortho...

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Abstract

The invention provides a laser radar orthogonal receiving and transmitting array. The laser radar orthogonal receiving and transmitting array comprises a transmitting unit and a receiving unit, wherein the transmitting unit transmits light wave signals in a specific far-field radiation pattern along a first direction, and scans along a second direction; the receiving unit receives an optical detection signal which is transmitted by the transmitting unit and is reflected by an object to be detected along the second direction, and scans along the first direction; the first direction is perpendicular to the second direction. The laser radar orthogonal receiving and transmitting array is based on the quadrature receiving and transmitting principle, the number of needed phase shifters can be reduced to a great extent, the production cost is reduced, the integration level can be improved, and the control difficulty of the laser radar quadrature receiving and transmitting array can be reduced.

Description

technical field [0001] The invention relates to the technical field of laser radar, and more specifically, to a laser radar orthogonal transceiver array. Background technique [0002] Lidar technology is widely used in fields such as ground exploration, archaeology, and autonomous driving. [0003] At present, lidar scanning technology can be roughly divided into two categories: mechanical scanning and solid-state scanning. Traditional mechanical scanning is expensive and not conducive to mass production; the existing LiDAR solid-state two-dimensional scanning requires an N×N phase shifter array, and with the improvement of measurement accuracy and area, the number of phase shifters will be significantly increased. Increase, will cause difficulties in manufacturing and signal configuration. [0004] Then, how to provide a novel lidar scanning technology to overcome the problems existing in the prior art is a technical problem to be solved urgently by those skilled in the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481G01S17/88
CPCG01S7/481G01S17/88
Inventor 张璟
Owner 长沙思木锐信息技术有限公司
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