Improved Noise Cancellation in Discrete Cosine Transform Domain Using Adaptive Block Lms Filter
نویسندگان
چکیده
This paper illustrates the advantages of Discrete Cosine Transform (DCT) when it is used in Block least mean square (BLMS) adaptive filter. DCT provides very good energy compaction in speech signals, image signals. So the signal to noise (SNR) is improved. Noise cancellation, Echo cancellation, System identification are the application of adaptive filter. We have proposed the Noise cancellation in DCT Domain and also compare with exist Fast Block LMS (FBLMS). The simulation result shows better signal to noise ratio (SNR) in DCT Domain rather than FFT Domain.
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