摘要
根据某距离自动跟踪系统设计的实际情况 ,分析了系统中模拟数字 (AD)转换电路、动目标显示 (MTI)与求模运算、波形分析和α -β滤波器所引入的测距误差 ,得出AD采样率和波形分析的内插点数决定了系统引入测距误差大小的结论。对实际工作参数的计算及校飞试验的结果证明 ,此距离自动跟踪系统引入的测距误差较小 ,满足雷达系统的要求。
This paper analyzed the ranging errors brought about by AD circuit, MTI, module operation, waveform analysis and α β filter in one automatic range tracking system, and gave the conclusion that the AD sample rate and the number of interinsert points have important effect on the errors. The calculation result of practical parameters proved this system has better range measurement accuracy.
出处
《上海航天》
2000年第4期22-28,共7页
Aerospace Shanghai
关键词
距离自动跟踪系统
测距误差
波形分析
Automatic range tracking system
Ranging error
Waveform analysis
α β filter
