摘要
在电子对抗系统中,无源定位跟踪系统由于本身不发射电磁波,具有很好的隐蔽性,而提取辐射电磁信号中携带的定位信息的参数,则是实现无源定位的前提和关键。对GPS卫星系统信号加以利用,通过计算出目标反射GPS卫星信号的回波信号相对于直达信号的时延和多普勒频移信息,仿真了一种新的估计算法,为目标的定位提供了基础。
In electronic countermeasure system, passive location tracking system has the best hidden characteristic for eradiating no electromagnetic field itself. And to get the location information parameters from eradiating electromagnetic signal is the premise and the key for realizing passive location. This paper computes delays and Doppler shift between the echo signal and the original one by making use of GPS satellite system signal, and simulates one kind of estimation method. All are the foundation of objective location.
出处
《信息技术》
2009年第4期77-79,111,共4页
Information Technology
