摘要
本文采用一种新的杂波信号实时重构和调制技术 ,研制了三通道多普勒雷达杂波信号实时模拟器 .与简单组合一系列时域数据组相比 ,由于对时域数据组采取了加窗、搭接等处理 ,使得到的杂波信号的信噪比由 30dB提高到 6 0dB以上 .同时 ,由于采用了数字正交调制 。
A three-channel real-time clutter simulator for Doppler radar is developed by applying a real-time signal reconstruction and modulation technology. Windowing and overlapping the series time domain sequence instead of simple combination, the ratio of signal to noise increases from 30 dB to 60 dB. At the same time, mirror frequency is refrained effectively with the method of digital quadrature modulation (DQM).
出处
《电子学报》
EI
CAS
CSCD
北大核心
2003年第9期1330-1333,共4页
Acta Electronica Sinica
