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Radar target solution method and terminal equipment

A target and radar technology, applied in the field of vehicle radar, can solve the problem that the target speed and angular velocity are not accurate enough, and achieve the effect of improving the accuracy and avoiding the coupling relationship.

Active Publication Date: 2021-09-28
WHST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Radar target solution method and terminal equipment
  • Radar target solution method and terminal equipment
  • Radar target solution method and terminal equipment

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Embodiment Construction

[0021] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0022] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

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

[0024] An antenna array with N...

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Abstract

The present invention is applicable to the technical field of vehicle radar, and provides a radar target solving method and terminal equipment. The radar in the method includes a sparse array MIMO antenna, and the receiving channel corresponding to each transmitting antenna is MIMO spliced ​​to two adjacent channels. Overlapping in azimuth space, corresponding to the above-mentioned radar, the method includes: acquiring the data received by each receiving channel of the radar, and determining the peak data and the location of the target in each receiving channel of the radar according to the data received by each receiving channel of the radar The value of the Doppler channel; the angle of the target is determined according to the peak data in each receiving channel of the radar; the speed of the target is determined according to the value of the Doppler channel. The radar target calculation method provided by the present invention effectively avoids the coupling relationship between the measurement of the target speed and the calculation of the target angle, and the accuracy of the calculation of the target speed and angle is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of vehicle radar, and in particular relates to a radar target solving method and terminal equipment. Background technique [0002] With the vigorous development of vehicle-mounted radar systems, millimeter-wave radar has become the main sensor for intelligent driving systems due to its advantages such as long detection distance, low environmental impact, low cost, and mature technology. [0003] In order to achieve higher performance of millimeter-wave radar in a limited volume space, the existing millimeter-wave radar adopts MIMO (Multiple-Input Multiple-Output) technology, using multiple transmitting and receiving antennas to form a virtual The large aperture of the vehicle radar can be virtually expanded to obtain better angle measurement performance. In the prior art, a sparse array antenna is also used to expand the virtual receiving channel. In order to comprehensively obtain the advantages of MIMO t...

Claims

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Application Information

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