摘要
介绍了一种采用直接数字合成(DOS)技术的雷达目标多普勒频率模拟器。通过数字控制,该模拟器可以在中频上相参地产生分辨率为0.012Hz的多普勒频率信号(fd=0~55kHz)。该模拟器采用±5V电源,功耗仅3.5W。
A DDS—based radar target doppler frequency simulator is introduced. By means of digital control, the simulator can produce coherently the doppler frequency signals ( f d =0~55kHz) with a resolution of 0.012Hz in IF frequency. The simulator uses ±5V power supply, and power dissipation is only 3.5W.
出处
《现代雷达》
CSCD
北大核心
1997年第1期101-104,共4页
Modern Radar
关键词
雷达
目标模拟
多普勒频率
直接数字合成
radar target simulation, doppler frequency, direct digital synthesis (DDS)