andTemporal Smoothing Technology
HongJiang Shu-Xun Wang · 2005
Thetwo-dimensional (2-D) multipath direction of characteristics ofnoise andinterference areoften unknown. In arrival (DOA)estimation algotithm using a planar array is order toimprove thecapability ofnoise suppression andsignal provided exploiting higher order cyclostationarity (HOCS) and selectivity, cyclostationarity property ofcommunication signals (9) temporal smoothing technology. Basedon realmobile canbeexploited toimprove theperforrnance. communication channel characteristics, in' which themultipath Inthepaper, an algorithm oftwo-dimensional (2-D) reflection coefficient changes morerapidly thantheir DOAs,the mutipath DOA estimation usinga planar array isprovided temporal smoothing isapplied toresolve 2-DDOAsofcoherentexploiting higher order cyclostationarity (HOCS)andtemporal signals. Comparedwithallthe previous multipathsmoothing. According to mobilecommunication channel azimuthlelevation angle estimation methods, theproposed method characteristics, inwhichthemultipath reflection coefficient achieves fusther array aperture extension, aswell asits powerfulchanges morerapidly thantheir DOAs,mobile terminal signal capability ofnoise-suppression andsignal-selectivi ty duetothe takes ontime-variant phase andamplitude ofmultipath reflection useofHOCS. coefficient (complex attenuation). Therefore, temporal smoothing