Real-time method for bit-reversal of large size arrays

Details Real-time method for bit-reversal of large size arrays Real-time method for bit-reversal of large size arrays

G - Physics

06

F

G06F 7/38 (2006.01) G06F 7/76 (2006.01)

Patent

CA 2352683

A digital signal processor DSP for bit-reversal of a large data array of a size has a direct memory access (DMA) controller for performing in-place bit reversal routines on an external memory during a first stage, and a central processing unit (CPU) for swapping small sub-arrays on internal memory in a second stage. The two stage method according to the invention importantly reduces the real-time implementation for sorting large size data arrays on uni-processor DSP platforms, by extensively using the external memory and avoiding a random access to the internal memory. As well, the invention provides for improved dense integration and reduced costs when used in dense wavelength division multiplexing (DWDM) systems.

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