一种分布式微波光子高精度测距装置
By using a distributed microwave photonic high-precision ranging device and real-time calibration via fiber optic links and a multi-antenna network, the phase error problem caused by antenna jitter in distributed multi-antenna systems under extreme weather conditions was solved. This enabled high-precision measurement of multi-antenna spacing and position calculation, improving the system's synchronization and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
- Filing Date
- 2024-12-31
- Publication Date
- 2026-07-17
AI Technical Summary
In distributed multi-antenna systems, phase errors caused by antenna jitter under extreme weather conditions cannot be corrected in real time with high precision, affecting signal time-frequency synchronization and system performance.
A distributed microwave photonic high-precision ranging device is adopted, which is connected to a distributed multi-antenna network, a fiber optic transmission delay control module, a broadband signal modulation and demodulation module, an analog-to-digital conversion module, and a digital signal processing module through an optical fiber link to achieve high-precision, real-time multi-antenna spacing measurement and position calculation.
It achieves sub-millimeter-level high-precision multi-antenna spacing measurement, improves system synchronization and reliability, reduces system cost, and enhances the dynamic access and real-time transmission capabilities of broadband signals.
Smart Images
Figure CN119861360B_ABST