摘要
对诸多文献资料关于调频测距信号的理论进行了分析,认为对差频信号的分析方法存在严重缺欠,得出的结论存在若干错误。文中得出锯齿波调频和三角波调频时差频信号频谱是连续的,测距是连续的,锯齿波调频时差频不存在不规则区,而是由于观测时间的随机性而使同一距离对应两个差频;三角波调频时差频存在不规则区等结论。
According to the analysis of the FM ranging theory presented in a large number of references, there are some mistakes in the theory and some serious deficiencies in the analysis of difference frequency signals. In this paper, it is concluded that the spectrums of difference frequency signals and the ranging suredly exists in triangular FM.
出处
《探测与控制学报》
CSCD
北大核心
2006年第5期1-3,共3页
Journal of Detection & Control
关键词
调频测距
差频
信号分析
frequency modulation ranging
difference frequency
signal analysis
