Processor and Methods Configured to Provide a Low-Complexity Input/Output Pruning Fast Fourier Transform

摘要

In some embodiments, a circuit may include an input configured to receive a signal and a radix-r input/output pruning fast Fourier transform (FFT) processing element coupled to the input. The radix-r input/output pruning FFT processing element may be configured to remove FFT operations on input values of zero within the signal and to determine a discrete Fourier Transform (DFT) output having fewer output values than a number of input values of the signal.