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On coefficient-quantization and computational roundoff effects in lossless multirate filter banks

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1 Author(s)
Vaidyanathan, P.P. ; Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA

It is shown that FIR lossless transfer matrices in multirate analysis/synthesis systems having the perfect reconstruction property can be implemented such that the lossless property (and hence perfect reconstruction) can be retained regardless of coefficient quantization. Such a result was previously shown to be true only for two-channel filter banks. A noise gain result is presented for lossless systems which finds application in analyzing roundoff noise in multirate filter banks

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Signal Processing, IEEE Transactions on  (Volume:39 ,  Issue: 4 )