【摘要】 本文针对空间环境下摆幅扫描机构的频率跟踪和摆幅控制问题,提出了一种具有频率跟踪的自适应控制算法。基于模块化设计方法,用FPGA对该算法进行了硬件设计和实现。实验测试结果表明,所设计的数字式自适应控制器具有频率跟踪和摆幅控制精度高的特点。更多还原

【Abstract】 A new adaptive frequency-tracking control algorithm for the swing scan mechanism has been presented in the aerospace environment. Considering the disturbance of the swing scan, a new digital filter is presented. Using module design method, the adaptive control algorithm has been implemented in the hardware design with FPGA (Field Programmable Gate Array) device and some VHDL functional blocks have been given in detail. The testing data from simulated aerospace environment show that the adaptive controller has a characteristic of high accuracy of frequency-tracking as well as high accuracy of swing scan control.更多还原