西安电子科技大学学报（自然科学版）2013，Vol.40Issue(2)：82-88,7.DOI:10.3969/j.issn.1001-2400.2013.02.014
一种新的高速多目标检测及参数估计方法
Novel detection and parameters estimation of a high-speed multi-target
摘要
Abstract
A novel algorithm for high-speed multi-target detection and parameters estimation with narrowband radar is proposed. Firstly, velocity and acceleration are roughly estimated with the combination of compensating range migration in the frequency domain and fractional Fourier transform. And then, based on the coarse estimation, keystone transform and fractional Fourier transform are employed to estimate the fold factor and acceleration accurately. In the case of multi-target, range migration, Doppler spread and velocity ambiguity, this algorithm is suitable, and the performance of the targets detection and parameters estimation is improved owing to the utilization of the coherent integration in a low signal-to-noise ratio. The computational load is greatly reduced by combination of coarse and accurate estimation. The validity of the proposed algorithm is demonstrated by computer simulation.关键词
距离徙动/分数阶傅里叶变换/Keystone变换/多普勒扩散/速度模糊/相参积累Key words
range migration/ fractional Fourier transform/ Keystone transform/ Doppler spread/ velocity ambiguity/coherent integration分类
信息技术与安全科学引用本文复制引用
郑纪彬,符渭波,苏涛,朱文涛..一种新的高速多目标检测及参数估计方法[J].西安电子科技大学学报（自然科学版）,2013,40(2):82-88,7.基金项目
国家自然科学基金资助项目(61001204) （61001204）
中央高校基本科研业务费专项资金资助项目(JY0000902020) （JY0000902020）
陕西省"13115"科技创新工程资助项目(2009ZDKG-26) （2009ZDKG-26）
