00000nam 2200000zi 4500 9.942901 CaOODSP 20240918082002 m o d f cr bn||||||||| 240905e198202##nscd ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre D68-21/5-1982E-PDF Walker, R. S., author. The detection performance of FFT processors for narrowband signals / R. S. Walker ; approved by R. F. Brown. Dartmouth, N.S. : Canada Research and Development Branch, Department of National Defence, Defence Research Establishment Atlantic, February, 1982. 1 online resource (x, 98 pages) : graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier D.R.E.A. technical memorandum ; 82/A Cover title. Digitized edition from print [produced by Defence Research and Development Canada]. Includes bibliographical references (pages 94-95). "The report analyses the detection performance of the Fast Fourier Transform (FFT) type signal processor for narrowband signals in white Gaussian noise. Sinusoidal and narrowband Gaussian signals are considered. The signal processor structure is based on the short-time averaged periodogram approach to spectral estimation. Processor parameters considered in the study include time-bandwidth product, data windowing, periodogram overlap, FFT zeroes extension and data normalization. A building-block approach is adopted, whereby the effects of each parameter on the detection threshold can be determined. Results are presented in graphical form. Hence, for a selected set of processor parameters, the appropriate detection threshold can be readily obtained. A thorough mathematical treatment of the problem is presented in the Appendices"--Abstract, page ii. Includes abstracts in English and French. Signal processing Mathematical models. Signal detection. Fourier transformations. Traitement du signal Modèles mathématiques. Détection du signal. Transformations de Fourier rapides. Defence Research Establishment Atlantic, issuing body. D.R.E.A. technical memorandum ; 82/A. (CaOODSP)9.941838 PDF 3.72 MB https://publications.gc.ca/collections/collection_2024/rddc-drdc/D68-21-5-1982-eng.pdf