The Design and Implementation of a High Performance Frequency-hopping Signal Source
Xianbin Li · Yuhang jice jishu · 2010
A frequency-hopping signal based on FPGA and AD9777 is designed.The signal source's control circuit core is FPGA,the realization of circuit digital part is based on FPGA.It uses the high-performance AD9777 to achieve digital-analog converter and controls AD9777′s operating mode through the SPI serial communication interface;the frequency-hopping signal source uses the improved L-G model circuit as the frequency hopping sequence generator and direct frequency sine wave generator as frequency-hopping signal source basis.Experimental tests prove that the signal source has good performance and can meet practical engineering requirements.