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Target resolving method of radar, and terminal equipment

A target and radar technology, which is applied in the field of vehicle radar, can solve the problem of insufficient accuracy of target velocity and angular velocity calculation, and achieve the effect of improving accuracy and avoiding coupling relationship

Active Publication Date: 2020-03-06
WHST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a radar target calculation method and terminal equipment to solve the problem in the prior art that the target velocity and angular velocity calculation accuracy of the radar based on the sparse array MIMO technology is not high enough

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  • Target resolving method of radar, and terminal equipment
  • Target resolving method of radar, and terminal equipment
  • Target resolving method of radar, and terminal equipment

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Embodiment Construction

[0021] In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are proposed for a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obstructing the description of the present invention.

[0022] In order to illustrate the technical solution of the present invention, specific embodiments are used for description below.

[0023] The embodiment of the present invention provides a target solving method for radar, wherein the radar includes a sparse array MIMO antenna, and the sparse array MIMO antenna includes m transmitting antennas and n receiving antennas.

[0024] After n rece...

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Abstract

The invention is suitable for the technical field of vehicle-mounted radars, and provides a target calculation method of a radar, and terminal equipment. The radar in the method comprises sparse arrayMIMO (multiple input multiple output) antennas, two adjacent channels are overlapped on an azimuth space when receiving channels corresponding to all transmitting antennas are subjected to MIMO splicing, and corresponding to the above radar, the method comprises the following steps of acquiring data received by each receiving channel of the radar, and determining peak data in each receiving channel of the radar and a value of a Doppler channel at which a target is located according to the data received by each receiving channel of the radar; determining an angle of the target according to peak data in each receiving channel of the radar; and determining the velocity of the target according to the value of the Doppler channel. The radar target resolving method provided by the invention effectively avoids a coupling relation between the measurement of the target velocity and the resolving of the target angle, and the resolving accuracy of the target velocity and angle is effectively improved.

Description

Technical field [0001] The invention belongs to the technical field of vehicle-mounted radars, and particularly relates to a radar target solution method and terminal equipment. Background technique [0002] With the vigorous development of vehicle-mounted radar systems, millimeter-wave radars have become the main sensors of intelligent driving systems due to their long detection distance, low environmental impact, low cost, and mature technology. [0003] In order to enable millimeter-wave radar to achieve higher performance in a limited volume, the existing millimeter-wave radar adopts MIMO (Multiple-Input Multiple-Output) technology, which uses multiple transmitting and receiving antennas to form a virtual The large aperture of the vehicle, the virtual expansion of the actual aperture of the vehicle radar to obtain better angle measurement performance. In the prior art, a sparse array antenna form is also used to expand the virtual receiving channel. In order to comprehensivel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/58G01S13/50
CPCG01S13/50G01S13/58
Inventor 江应怀秦屹高援朝
Owner WHST CO LTD