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A Two Stage Hybrid Embedded SpeechAudio Coding Structure I337
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adaptive algorithm amplitude analysis antenna approach array assume asymptotic bandwidth beamforming blind channel blind equalization CDMA channel estimation coefficients communication complexity computational convergence correlation cost function decoder decorrelating deﬁned delay denotes detection diversity DS-CDMA eigenvalue equation error fading channels Figure filter ﬁrst ﬁxed frequency fuzzy Gaussian Hellinger distance identiﬁcation IEEE IEEE Trans implementation impulse response input interference iteration linear matrix Maximum Likelihood method minimize MMSE modulation multipath multiple multiuser detectors near-far noise nonlinear obtained OFDM optimal orthogonal output parameters performance phase PN sequence precoding problem Proc proposed quantizer RAKE receiver received signal robust samples scheme sensor shown Signal Processing simulation results space spread spectrum statistics structure subspace symbol synchronization techniques Technology time-frequency time-varying tion training sequence transmission transmitted type-based University vector waveform wireless WPDM zero