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Speed determination method and device based on phase peak value, radar and storage medium

A technology for determining the method and speed, applied in the field of radar, it can solve the problem that the range resolution and speed resolution cannot be obtained and the optimal design can be achieved at the same time.

Pending Publication Date: 2021-05-14
中山联合汽车技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a velocity determination method, device, radar and storage medium based on the phase peak value, aiming to solve the anti-correlation relationship between the distance resolution and the velocity resolution in the prior art using fuzzy function design, which cannot be obtained The technical problem of optimal design of distance resolution and velocity resolution at the same time

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  • Speed determination method and device based on phase peak value, radar and storage medium
  • Speed determination method and device based on phase peak value, radar and storage medium
  • Speed determination method and device based on phase peak value, radar and storage medium

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Embodiment Construction

[0047] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0048] refer to figure 1 , figure 1 It is a schematic diagram of the structure of the implementation of the hardware operating environment in the vehicle related to the solution of the embodiment of the present invention.

[0049] Such as figure 1 As shown, the vehicle may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a button, and the optional user interface 1003 may also include a standard wired interface and a wireless interface. Optionally, the network interface 1004 may inc...

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Abstract

The invention relates to the technical field of radars, and discloses a speed determination method and device based on a phase peak value, a radar and a storage medium. The speed determination method based on the phase peak value comprises the following steps: calculating a signal echo, a first emission period, a second emission period and a preset target radial motion speed to obtain a motion phase, compensating the motion phase to obtain a compensation result, performing Fourier transform on the compensation result to obtain a target peak value, and obtaining the real speed value of the target according to the target peak value, so that the distance resolution and the speed resolution corresponding to the real speed value can meet the optimal condition at the same time, and the technical problem that distance resolution and speed resolution cannot be optimized at same time due to inverse correlation between distance resolution and speed resolution designed by fuzzy function is solved.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a phase peak-based velocity determination method, device, radar and storage medium. Background technique [0002] Millimeter-wave radar is a radar that works in the millimeter-wave band. The ranging principle of millimeter-wave radar is the same as that of general radar. It transmits radio waves, then receives the reflected waves, and measures the position data of the target according to the time difference between sending and receiving. The millimeter-wave radar can be used as a vehicle-mounted radar, and the vehicle-mounted millimeter-wave radar can detect the distance, speed, azimuth, elevation angle and other information of the target. [0003] At present, high-speed running vehicles need a higher speed range when detecting relative moving targets. When the cycle design of the signal is shorter, a larger speed range can be obtained, but the speed resolution is larger. At the sa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/08G01S13/62G01S7/41
CPCG01S7/415G01S13/08G01S13/62
Inventor 祁鹏辉王珂胡春文
Owner 中山联合汽车技术有限公司