摘要
提出了一种基于二次差频测距的新方法。对其测距原理进行了详细推导,提出了简化发射机设计与便于后续信号处理的频点选取准则,理论分析了正确解模糊对信噪比的要求。通过与参差多频测距方法进行比较,分析了该方法的优越性。仿真结果验证了该方法的有效性。
A new ranging method based on quadric difference fr equency is presented. The principle of ranging is deduced in details. The rules for frequency selection are proposed,which make convenient the design of transm itter and lat er signal processing. The need for SNR is analyzed when solving ambiguity correc tly. Compared with the uneven ranging method, its advantages are proved. Simulat ion results verify the validity of the method.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2005年第2期56-60,共5页
Journal of National University of Defense Technology
关键词
多频测距
二次差频
信噪比
multiple frequency ranging
quadric difference freque ncy
SNR
