Wideband high-precision single-channel direction finding device and method based on time division multiplexing phase shift technology
Through a single-channel direction finding device based on time division multiplexing phase shift technology, the problems of high hardware complexity, high cost and insufficient real-time performance of traditional multi-channel direction finding systems are solved, and high precision, low cost and high real-time direction finding of wireless communication signals is achieved.
Patent Information
- Application Number
- CN202510940108.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2045-07-09
AI Technical Summary
In the existing wireless communication signal direction finding technology, traditional multi-channel direction finding systems have problems such as high hardware complexity, expensive cost, difficult to guarantee channel consistency and insufficient real-time performance.
A single-channel direction finding device based on time division multiplexing phase shift technology includes an antenna array, an antenna signal processing unit, a radio frequency front end and a direction finding receiver. The signal is preprocessed through the antenna signal processing unit and centrally transmitted to the single-channel radio frequency front end. The superheterodyne receiver is used for secondary frequency conversion, and the algorithm is used for algorithm processing using a 16-bit high-precision ADC and FPGA, and then output to the display control computer.
Significantly reduce hardware complexity and cost, improve direction finding accuracy and real-time processing capabilities, enhance anti-interference capabilities, achieve direction finding accuracy of ≤1.5° RMS in the frequency band of 20MHz~1GHz, adapt to complex electromagnetic environments and support portable and on-board applications.