Laser radar analog signal acquisition device
By designing signal conditioning and low-pass filtering circuits in lidar, converting analog signals into differential voltages, and performing accumulation processing in FPGA processing unit, the problem of low signal-to-noise ratio when lidar collects signals is solved, and data inversion is improved Performance accuracy.
Patent Information
- Application Number
- CN202420218949.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-01-29
AI Technical Summary
When lidar collects rapidly changing analog signals, it is difficult to accurately collect and accumulate in real time, resulting in low signal-to-noise ratio and affecting data quality.
An analog signal acquisition device including a signal conditioning unit, a high-speed AD conversion unit, a high-speed FPGA processing unit and a synchronous signal processing unit is designed. Through signal conditioning, a reverse op amp circuit and a low-pass filtering circuit, the analog current signal is converted into Differential voltage is performed in the high-speed FPGA processing unit to improve the signal-to-noise ratio.
Accumulation processing of thousands of times per second is achieved, significantly improving radar data inversion accuracy and signal-to-noise ratio.
Smart Images
Figure CN222280833U_ABST