典型文献
Time and phase synchronization using clutter observations in airborne distributed coherent aperture radars
文献摘要：
Airborne Distributed Coherent Aperture Radar (ADCAR) is one of the most promising next-generation radars to significantly improve target detection and discrimination abilities.How-ever,time and phase synchronization among unit radars should be done before an ADCAR is intended to cohere on a potential target.To address this problem,a time and phase synchronization technique using clutter observations is proposed in this paper.Clutter returns from different azi-muths and elevations on the surface of the earth are employed to calibrate system uncertainties.Two stages are mainly considered:a scene registration among range-Doppler units from different transmit/receive pairs is performed to enhance the clutter coherence in the first stage,followed by a joint estimation of those synchronization errors in the second stage.To relieve the computa-tional burden,a novel Separable and Sequential Estimation (SSE) method is provided to separate the unknowns at the sacrifice of a range-Doppler unit.Moreover,performance analyses including the clutter coherence ability,estimation lower bound,and signal coherence loss are also performed.Finally,simulation results indicate that ADCAR time and phase synchronization is realized by using our methods.
文献关键词：
中图分类号：
作者姓名：
Jinming CHEN;Tong WANG;Xiaoyu LIU;Jianxin WU
作者机构：
National Laboratory of Radar Signal Processing,Xidian University,Xi'an 710071,China;School of Electronics and Communication Engineering,Sun Yat-sen University,Guangzhou 510006,China
文献出处：
引用格式：
[1]Jinming CHEN;Tong WANG;Xiaoyu LIU;Jianxin WU-.Time and phase synchronization using clutter observations in airborne distributed coherent aperture radars)[J].中国航空学报（英文版）,2022(03):432-449
A类：
ADCAR,cohere,azi,muths
B类：
Time,phase,synchronization,using,clutter,observations,airborne,distributed,coherent,aperture,radars,Airborne,Distributed,Coherent,Aperture,Radar,most,promising,next,generation,significantly,improve,target,detection,discrimination,abilities,How,ever,among,should,done,before,intended,potential,To,address,this,problem,technique,proposed,paper,Clutter,returns,from,different,elevations,surface,earth,are,employed,calibrate,system,uncertainties,Two,stages,mainly,considered,scene,registration,range,Doppler,units,transmit,receive,pairs,performed,enhance,coherence,first,followed,by,joint,estimation,those,errors,second,relieve,computa,tional,burden,novel,Separable,Sequential,Estimation,SSE,provided,separate,unknowns,sacrifice,Moreover,performance,analyses,including,ability,lower,bound,signal,loss,also,Finally,simulation,results,indicate,that,realized,our,methods
AB值：
0.605376
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