Anti-aliasing Filter in Hybrid Filter Banks

Abstract : Hybrid Filter Banks allow wide-band, high frequency conversion. All existing design methods suppose that the input signal is band-limited and that each sub-band signal is sampled at 1/M times the effective Nyquist frequency of the input signal 1/T . To avoid aliasing in the sampling process, an analog anti-aliasing filter should be used in order to eliminate noise in frequency bands in which there is no signal (or a few signal) . In this paper, it is shown that this pre-filtering operation is critical and has to be done taking into account the respective power spectral densities of signal and noise due to the spectral aliasing with the sampling rate compressor. Results will be demonstrated for the design of a realistic 8 channel Hybrid Filter Bank.
Complete list of metadatas

Cited literature [11 references]  Display  Hide  Download

https://hal-supelec.archives-ouvertes.fr/hal-00253904
Contributor : Karine El Rassi <>
Submitted on : Wednesday, February 13, 2008 - 12:04:29 PM
Last modification on : Thursday, March 29, 2018 - 11:06:03 AM
Long-term archiving on : Tuesday, May 18, 2010 - 12:38:29 AM

File

isccsp2006v4.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-00253904, version 1

Collections

Citation

Daniel Poulton. Anti-aliasing Filter in Hybrid Filter Banks. International Symposium on Communications, Control and Signal Processing, Mar 2006, Marrakech, Morocco. pp.CD ROM Proccedings. ⟨hal-00253904⟩

Share

Metrics

Record views

238

Files downloads

106