现代电子技术2011，Vol.34Issue(11)：9-12,4.
多重频解模糊中降低频道量化误差的新方法
A New Method to Reduce Channel Quantization Error in Resolving Velocity Ambiguity by PRF Varied Method
聂胜猛 1张泽建 2欧建平 1夏胜平1
作者信息
- 1. 国防科学技术大学ATR重点实验室,湖南长沙410073
- 2. 解放军71834部队,河南荥阳450100
- 折叠
摘要
Abstract
PRF varied method of improving the accuracy of frequency estimation is adopted to resolve the problem of velocity ambiguity of low repetition rate pulse Doppler radar. However, the PRF varied method in engineering applications exists a channel quantization error. In order to reduce channel quantization error, a new approach to improve the estimation accuracy is proposed. The accumulated data in the range bin where target exists is inversely transformed to be raw data, and then zero-pad FFT is performed. On this basis, the quadratic function fitting is conducted. It effectively combines the advantages between zero-padding FFT and quadratic function fitting, and makes up for their shortcomings. Simulation results show that the method can reduce the channel quantization error in the case of little computation.关键词
速度模糊/重频参差/频道量化误差/二次函数拟合Key words
velocity ambiguity/ repetition frequency variety/ channel quantization error/ quadratic function fitting分类
信息技术与安全科学引用本文复制引用
聂胜猛,张泽建,欧建平,夏胜平..多重频解模糊中降低频道量化误差的新方法[J].现代电子技术,2011,34(11):9-12,4.
