Title :
Synthesis of high-resolution narrow-band Fourier spectra from low-resolution transforms
Author_Institution :
Comput. Devices Co., Ottawa, Ont., Canada
fDate :
7/1/1988 12:00:00 AM
Abstract :
The practical limit to fast Fourier transform (FFT) size imposed by available computer memory limits the achievable spectral resolution. However, it is pointed out, the coefficients of a large transform can be directly synthesized from the coefficients of successive smaller transforms over the same frequency range
Keywords :
fast Fourier transforms; FFT; available computer memory; coefficients; fast Fourier transform; frequency range; high-resolution narrow-band Fourier spectra; large transform; low-resolution transforms; spectral resolution; Baseband; Fast Fourier transforms; Filtering; Flexible printed circuits; Fourier transforms; Frequency synthesizers; Low pass filters; Narrowband; Sampling methods; Time domain analysis;
Journal_Title :
Proceedings of the IEEE
