Improved Method of Pre-Weighed Zoom FFT

摘要：

This paper presents a method to improve preweighed Zoom FFT (ZFFT) for fast computation of ambiguity function.The method retains the advantages of pre-weighed ZFFT while at the same time enhances it.By dividing the pre-weighing into cascade,it decreases the sample rate gradually.As a result,no filter with sharp transition band at each step is necessary.The method dominantly reduces the burden of the filtering procedure and accommodates the preweighed ZFFT to applications with more strict constraints.Analysis is detailed in this paper and simulations prove that the method markedly improves the efficiency of the pre-weighed ZFFT.

作者: Kui Wang Ran Tao Tao Shan

作者单位: Dept.of Electronic Engineering,Beijing Institute of TechnologyBeijing,China Dept.of Electronic Engineering,Beijing Institute of Technology Beijing,China

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）