Target tracking method and device of binary phase modulation array radar
An array radar and phase modulation technology is applied in the field of array radar target detection to achieve the effects of improving FOV, expanding beam bandwidth and increasing gain
Active Publication Date: 2021-09-17
WHST CO LTD
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[0005] In view of this, the embodiment of the present invention provides a target tracking method and device for a binary phase modulation array radar to solve the problem of increasing the transceiving gain and expanding the field of view FOV in the prior art.
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[0035] 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.
[0036] Millimeter wave radar miniaturization, low cost, long distance, large field of view FOV (field of view), high resolution, and multi-function are the development trend of millimeter wave radar, and it is also the competition among major millimeter wave radar manufacturers. several aspects.
[0037] Usually, when the millimeter-wave radar hardware solution is determined, the transceiver ante...
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The invention is applicable to the technical field of array radar target detection, and provides a target tracking method and device for a binary phase modulation array radar, and the method comprises the steps: receiving v sum beams and v difference beams which are formed by synthesizing u transmitted signals in a space and are arranged at intervals; according to the v sum beams and the v difference beams, obtaining target parameters of each moving target in k moving targets; and carrying out tracking filtering on the target parameter of each moving target, and determining a movement track of each moving target. According to the invention, beam forming is realized by using a binary phase modulation idea that two paths of transmitting signals are transmitted in an in-phase and anti-phase alternating manner, peak gain is improved by using a sum beam, beam broadband is expanded by using a difference beam, and the effect of improving gain and FOV at the same time under the condition of limited transceiving channel scale is realized.
Description
technical field [0001] The invention belongs to the technical field of array radar target detection, and in particular relates to a target tracking method and device of a binary phase modulation array radar. Background technique [0002] With the development of the automobile industry and the maturity of autonomous driving technology, intelligent vehicles rely more and more on various sensor devices, and the requirements for technical indicators of various body sensors are also getting higher and higher. As an all-weather and all-weather sensor, millimeter-wave radar is an indispensable and important part of autonomous vehicles. [0003] In order to effectively detect the target, the following methods can usually be adopted: first, on the basis of millimeter-wave radar hardware, through the effective combination of more effective radar signal processing technology and radar waveform design method, the detection performance of the target can be improved; In limited cases, us...
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IPC IPC(8): G01S13/72G01S13/62
CPCG01S13/726G01S13/62
Inventor 江应怀秦屹
Owner WHST CO LTD