The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Apr. 24, 2023
Calterah Semiconductor Technology (Shanghai) Co., Ltd., Shanghai, CN;
Yanqun Zhang, Shanghai, CN;
Yan Zhu, Shanghai, CN;
Calterah Semiconductor Technology (Shanghai) Co., Ltd., Shanghai, CN;
Abstract
The radar signal processing method includes: after an echo signal is mixed based on a local oscillator signal, and digital signal processing is performed to obtain a signal to be processed, the signal to be processed is subtracted based on a datum difference frequency signal to obtain a target signal, and a travelling speed of a target relative to a radar and/or a distance of the target relative to the radar is determined according to the target signal. Since the datum differential frequency signal is a signal obtained by mixing a leakage signal based on the local oscillator signal and performing the digital signal processing in a target free environment. Therefore, subtracting the signal to be processed based on the datum differential frequency signal can effectively reduce the content of the leakage signal in the signal to be processed, thereby improving the accuracy of the measurement results.