Performance Analysis of Feedforward Adaptive Noise Canceller Using Nfxlms Algorithm

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Provided by: International Journal of Innovative Research in Electrical, Electronics, Instrumentation and Control Engineering (IJIREEICE)
Topic: Hardware
Format: PDF
The adaptive filter operates by estimating the statistics of the incoming signal and adjusting its own response in such a way as to minimize some cost-function. The Active Noise Control (ANC) uses a primary input containing the corrupted signal and a reference input containing noise correlated in some unknown way with primary noise. The reference input is adaptively filtered and subtracted from the primary input to obtain the signal estimate. Adaptive filtering before subtraction allows the treatment of inputs that are deterministic or stochastic, stationary or time variable.
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