一种扩频信号三级捕获方法、系统、设备及介质
By performing three-stage acquisition of the spread spectrum signal, the search range and step size are gradually reduced, solving the problems of long acquisition time, low accuracy and high hardware resource requirements in the existing technology, and realizing high-precision signal acquisition with low resource consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIDIAN UNIV
- Filing Date
- 2024-02-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing spread spectrum signal acquisition methods suffer from problems such as long acquisition time, low accuracy, and high hardware resource requirements, especially when using long spreading codes, which place a heavy hardware load.
A three-level acquisition method is adopted, which models the received spread spectrum signal and gradually narrows the search range, including first-level, second-level and third-level acquisition, and gradually reduces the search step size. The third-level acquisition is performed using the frame synchronization header sequence of the spread spectrum signal to achieve accurate signal acquisition.
It improves the accuracy and completeness of signal acquisition, shortens the acquisition time, and reduces the hardware resource requirements, thus achieving efficient signal acquisition.
Smart Images
Figure CN117938199B_ABST