基于FPGA的无人机SAR天线稳定平台控制系统设计

为了满足无人机SAR成像对天线波束指向平稳性的要求,设计了一种基于FPGA的天线稳定平台控制系统。FPGA接收姿态传感器和DGPS/INS组合系统输出的姿态信息,采用数字滤波、数字PID控制实现对SAR天线指向的平稳控制。该系统具有实时性好、集成度高、小型化、低成本、低功耗等特点。通过大量实验验证,实验结果表明该系统性能良好,满足设计要求。

Design of UAV-SAR Antenna Stable Platform Control System Based on FPGA

In order to satisfy the pointing stability demand of antenna beam for UAV-SAR imaging,an antenna stable platform control system based on FPGA is designed.FPGA is responsible for collecting and processing the information from attitude sensor and DGPS/INS system,and the steady control for SAR antenna pointing is realized by digital filtering and digital PID algorithm.Large number of experiments and flight tests show that the designed system has good performance,which meets the design requirement.