摘要
到达时间差定位因为其系统简单,定位精度高等优点成为目前定位技术中的研究热点。目前,TDOA测量技术仅应用于对脉冲信号的测量中,研究将此技术扩展应用于AM,FM调制信号的测量,扩大了其应用范围。简要介绍了TDOA测向定位技术和TDOA的互相关算法,并搭建了试验平台,通过脉冲、AM,FM调制信号对算法进行了测试,证实了此算法对AM及FM信号的测量同样是可行、有效的。
Time Different of Arrival （TDOA） location technology has become current research focus by the merits of simply system and high precision location. TODA technology only used in pulse modulate signal measure. This research extends the technology in AM,FM modulate signal, enlarges the application range. The technology of TDOA location technology and correlation arithmetic are introduced. Then an experimentation is built, pulse FM AM radio is used to test the arithmetic, it proves that this arithmetic is also feasible and available in AM and FM signal measurement.
出处
《现代电子技术》
2009年第1期7-10,共4页
Modern Electronics Technique
关键词
无线电定位
TDOA定位
相关算法
时间差估计
radio location
TDOA location
correlation algorithm
time difference estimation
