摘要
文中首先介绍了雷达测距的两种常用方法,通过分析,调频连续波(FMCW)雷达更具有优势,然后阐述了调频连续波(FMCW)雷达测距系统的基本组成原理,再后本文论述了测频中最常用的FFT算法。接着分析研究了由此衍生出的距离谱,根据距离谱本文重点论述了其估计算法,说明了距离谱最大采样点法的问题,提出距离谱最大值二分估值法,又经过进一步改进得到距离谱最大值的拟合法。通过计算机仿真的结果确定距离谱最大值的拟合法提高了测距的精度。
This paper Introduces two common methods of radar range, by analyzing the frequency modulated continuous wave （FMCW） radar has an advantage, and then describes the principle of the basic components of the frequency-modulated continuous wave （FMCW） radar ranging system, and the most commonly used frequency measurement FFT algorithm. followed by analysis of the distance spectrum coming from FFT, this paper focuses on spectrum estimation algorithm, the method of distance spectrum maximum sampling points is not good enough, raised the dichotomy estimated based on maximum sampling points method, further to get the distance spectrum maximum point fitting. Results of computer simulation determines the distance spectrum maximum point fitting to improve the accuracy of the distance measurement.
出处
《电子设计工程》
2013年第1期103-106,共4页
Electronic Design Engineering
关键词
雷达测距
距离谱
二分估值
最大值的拟合
radar range
distance spectrum
dichotomy estimated
maximum point fitting
