A wavefront array for URV decomposition updating

The rank revealing URV decomposition is a useful tool in many signal processing applications that require the computation of the noise subspace of a matrix. In this paper, we look at the problem of updating the URV decomposition and consider its implementation on a wavefront array. We propose a wavefront array for efficient VLSI implementation of the URV decomposition. The array provides a mechanism for accumulating the null space of the matrix as well as for handling rank changes during updating