
doi: 10.1109/dcc.2008.86
There are two main classes of decoding algorithms for "compressed sensing," those which run in time polynomial in the signal length and those which use sublinear resources. Most of the sublinear algorithms focus on signals which are compressible in either the Euclidean domain or the Fourier domain. Unfortunately, most practical signals are not sparse in either one of these domains. However, many are sparse (or nearly so) in the Haar wavelet system. We present a modified sublinear recovery algorithm which utilizes the recursive structure of Reed-Muller codes to recover a wavelet-sparse signal from a small set of pseudo-random measurements. We also discuss an implementation of the algorithm to illustrate proof-of-concept and empirical analysis.
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