Methods of Eliminating Doppler Dispersion in Synthetic Wideband Signal
As the technological advances,it is possible to perform wide bandwidth signal processing for high range resolution and target identification in the modern radar systems.In order to prevent the deleterious effects of dispersion for wideband signals,a wideband signal can be synthesized by coherently combining the in dividual narrow band components,meanwhile,clutter mitigation,estimation and discrimination of targets velocity is enabled by performing coherent pulse train in each subband. However,the separate and in dependent processing using conventional Doppler filter bank in a subband can also introduce deleterious effects of target Doppler dispersion among subbands and cause the distortion on synthesized one-dimensional range profile,in this paper,we first analyze the target Doppler dispersion among subbands and deleterious effects of following recombination,and then propose an effective method to eliminate the deleterious effects of target Doppler dispersionInsubbands. The Method is easy to be realized and tractable and do not require an increment of computation. Its good performance is verified by simulation results.
deleterious effects of dispersion subbands Doppler filter bank synthetic wide signal signal loss FFT
Wei PENG Xue-gang Wang Jian-hong Zhao
School of Electronic Engineering,UESTC,Chengdu,China
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
1540-1543
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）