6Th International Conference on Signal Processing, Date: AUG 26-30, 2002, Location: BEIJING, PEOPLES R CHINA, Sponsors: Chinese Inst Electr, IEEE Signal Proc Soc, IEE, Union Radio Scientif Int, IEEE Beijing Sect, Natl Nat Sci Fdn China, URSI China Comm, IEEE Comp Soc Beijing Chapter, IEEE SP Soc Beijing Chapter, NO Jiaotong Univ