Multi microphone techniques for noise reduction in speech recognition devicesD. ChazanY. Medanet al.1990ICASSP 1990
Congruential frequency hop signals for multi-user environments: A comparative analysisJerome R. Bellegarda1990ICASSP 1990
Joint maximum likelihood estimation of pitch and AR parameters using the EM algorithmD. Burshtein1990ICASSP 1990