多径衰落条件下两种常规测向方法的误差问题  

Error Problem of Two Kinds of Conventional Direction-Finding under Multipath Descent Channel

作　　者：罗冰[1] 郭立[1] 

机构地区：[1]中国科学技术大学电子科学与技术系

出　　处：《航空电子技术》2006年第1期1-5,共5页Avionics Technology

摘　　要：讨论了莱斯多径衰落信道模型在两类常规测向技术中的应用。利用常规测向技术对信噪比的特定要求,分析了具有莱斯分布特性衰落信道对比相、比幅测向误差抖动的影响,给出了其分布函数,并通过仿真指出其应用限制。最后就工程应用中所关心的模型参数获取和采样点数确定等问题作一论述。This paper discusses the application of Rician Distribution multipath descent in two kinds of conventional direction-finding. According to the special demand for SNR of the conventional direction-finding technology, an affection analyses of Rician Distribution multipath descent channel to amplitude-compare and phase-compare direction-finding error is given. The error dithering distribution is deduced, and a simulation is given to show the restriction of the distribution function. In the end, some engineering problems of interest, such as model parameters estimation, sampling number, are discussed.

关 键 词：多径衰落 莱斯分布 比幅测向 比相测向 

分 类 号：TN925[电子电信—通信与信息系统]