A Novel Complete Set of Walsh and Inverse Walsh Transforms for Signal Processing
Zulfikar Zulfikar, Shuja Ahmad Abbasi, A.R.M. Alamoud · 2011
In this paper, we design and implement a novel complete set of Walsh and inverse Walsh transforms for signal processing. The system consists of Walsh Transforms (WT), Digital Signal Processing (DSP) block, inverse Walsh transform (IWT) and a dividing block. The Walsh and inverse Walsh transforms are designed to produce correct results for any input data combinations. A DSP block is designed to perform addition, subtraction and dyadic convolution of Walsh coefficients of two signals. It is found that the proposed Walsh transform structure is superior to many of the reported results when it is implemented on FPGAs.