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In this paper, a new architecture to compute 1-D Discrete Wavelet Transform (DWT) based on Folding Number System (FNS) is introduced. Numbers for FNS are extracted directly from analog input without any forward converter like in the Residue Number System (RNS) based DWT. The large Dynamic Range makes the FNS DWT more efficient than those implemented using RNS systems. The proposed 1D DWT architecture...
This paper proposes a novel method for constructing UWB pulses based on Daubechies wavelets. The constructed pulse, while meeting the FCC mask requirements insures minimum interference with WLAN by introducing a notch at 5GHz in its spectrum and provides good performance in the presence of timing jitter. The proposed pulse shaping method is based on linear combination of Daubechies wavelets. The performance...
Synthetic aperture radar (SAR) is a two dimensional imaging system that processes reflected radar signals into an image of the reflecting object without recourse to large antennas. Excessively high data rates are encountered in SAR processing due to the fact that contributions to a single image point are from several echoes. This results in computational loads beyond the capability of existing processors...
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