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Echo Cancellation I: Algorithms Simulation
(Společnost pro radioelektronické inženýrství, 2000-04)
Echo cancellation system used in mobile communications is analyzed. Convergence behavior and misadjustment of several LMS algorithms are compared. The misadjustment means errors in filter weight estimation. The resulting ...
Echo Cancellation II: Double Talk Detection and Environmental Noise Influence
(Společnost pro radioelektronické inženýrství, 2000-04)
Two problems arising in the real-life application of echo cancellation systems are analysed.The first, simultaneous activity of both telephone users (double talk) deteriorates the echo suppression. The second, environmental ...