Fast implementation of scaled inverse Fourier transform for high‐speed radar target detection

The symmetric autocorrelation function (SAF) has a huge computational complexity, which may limit the practical application of SAF-based scaled inverse Fourier transform (SCIFT). Taking the relationship between SAF and summation into consideration, a frequency-domain method is proposed for the fast implementation of the SCIFT, and the energy integration performance remains unchanged. Mathematic analysis and numerical simulations are provided to...