实时响应的多普勒信号抗干扰处理方法和微波探测装置
By using a Doppler signal processing method based on differential signal morphology, the problem of unstable feedback in Doppler microwave detection devices under environmental interference was solved, enabling accurate and real-time detection of human motion characteristics and enhancing the device's anti-interference capability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN MERRYTEK TECHNOLOGY CO LTD
- Filing Date
- 2022-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing Doppler microwave detection devices suffer from unstable feedback and poor accuracy under environmental interference, making it difficult to accurately detect human micro-movements, breathing, and heartbeats. Filtering processes also suffer from delay and signal distortion.
The Doppler signal processing method using differential signal form generates a differential signal through a mixer, and then converts it into a single-ended signal form using differential amplification and common-mode interference suppression techniques to suppress interference and ensure signal integrity and timeliness.
It improves the accuracy and stability of Doppler signal feedback, enables accurate detection of human movement, micro-movements, breathing, and heartbeat, reduces delay and signal distortion, and enhances the device's anti-interference capability.
Smart Images
Figure CN115236751B_ABST