摘要
AD9910是ADI公司最近生产的一款宽频带、低杂散具有捷变频优点的频率合成器,可应用于雷达信号源,产生高性能的雷达信号;AD9910与一般通用的微控制器具有良好的兼容性,使用FPGA作为AD9910的控制器,采用自顶向下的设计方法设计系统控制软件;最终设计的用于脉冲调制多普勒雷达的信号源可实现线性扫频(330～365MHz)与点频信号(320 MHz)之间的快速切换;输出信号杂散可达到≤-50 dBc,相噪优于-80 dBc/Hz@10KHz。
AD9910 is a frequency synthesizer with wider band and lower spur, which is made by ADI. It is always used in radar signal source to generate high-quality radio signal. AD9910 is compatible with MCU. Hhere, we use FPGA as controller and top-down soft system. The pulse Doppler radar designed can realize quickly switch between sweep frequency （330 -365 MHz） source and single frequency source（320 MHz）, the spur of output signal is not lower than -50 dBc, and phase noise is better than 80 dBc/Hz @ 10KHz.
出处
《四川兵工学报》
CAS
2013年第7期19-21,共3页
Journal of Sichuan Ordnance
