Method for determining calibration parameters, frequency calibration method and device and storage medium
By setting the target in the radar to obtain the frequency difference and determining the spectrum scaling parameters, the problem of multi-channel frequency deviation of radar is solved, and frequency consistency and ranging accuracy are improved.
CN120214706APending Publication Date: 2025-06-27BEIJING TUSEN ZHITU TECH CO LTD
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Patent Information
- Application Number
- CN202311811419.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-06-27
AI Technical Summary
Technical Problem
There is a deviation in the frequency between the radar channels, which affects the processing performance of target detection, angle measurement, distance measurement and other functions.
Method used
By setting targets at multiple locations, the frequency difference between C-1 channel and reference channel in the receiving channel is obtained, and the spectrum scaling parameters are determined using these frequency differences to perform frequency calibration.
Benefits of technology
Improves frequency consistency between radar multiple channels to ensure good frequency calibration results can be achieved at all distances.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a method for determining calibration parameters, a frequency calibration method and device and a storage medium. According to the main technical scheme, the method comprises the steps that first echo signals received by C receiving channels of a radar are obtained, each receiving channel receives M first echo signals, the M first echo signals are signals obtained by reflecting transmitting signals of the radar through M targets, the M targets and the radar are spaced by different distances, and M and C are integers larger than 2; frequency differences between C-1 channels except the reference channel in the C receiving channels and the reference channel are determined by using the first echo signals received by the C receiving channels; frequency spectrum scaling parameters of the C-1 channels are determined through the frequency difference, and the frequency spectrum scaling parameters are used for conducting frequency calibration on the C-1 receiving channels. According to the invention, the frequency consistency among multiple channels of the radar can be improved.
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