摘要
介绍了通过采集接收信号的相位参数,利用对采集信号的相位参数进行双回路解调和选用高速率数字信号处理器(DSP)构成的瞬时测频技术,适用于雷达侦察测频系统。讨论了随机相位波动产生频率误差,给出了在测量频率范围内随机相位波动产生的频率误差的最大均方根值误差。
Through collecting phase parameter of the received signal, using double loop demodulator of the phase signal parameter and selecting high -speed Digital Signal Processor （DSP） tO constitute the instantaneous frequency measurement technology, It can be applied to radar reconnaissance frequency monitoring system. The paper discusses frequency error generated by random phase undulation and gives Max. Root mean square error of frequency error in the range of measured frequency. In the frequency range from random phase fluctuations in the biggest root.
出处
《现代电子技术》
2008年第15期168-170,共3页
Modern Electronics Technique
关键词
采集相位
频率误差
瞬时测频
双回路解调
collecting phase
frequency error
instantaneous frequency measurement
double loop demodulator
