00000nam 2200000zi 4500 9.892618 CaOODSP 20250527073549 m o d f cr bn||||||||| 201020s1984 onca ob f000 0 eng d CaOODSP eng rda CaOODSP Co24-3/8-722-1984E-PDF Keightley, Robert Joseph, 1951- author. A simulation of frequency dehopped binary and 4-ary NCFSK signals / by R.J. Keightley. Ottawa : Communications Research Centre, 1984. 1 online resource (iii, 40 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CRC technical note ; no. 722 "April 1984." "This work was sponsored by the Department of National Defence, Research and Development Branch, under Project No. 32A56." Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. Some pages rotated in this copy. Includes bibliographical references (pages 29-31). "This report describes the simulation of frequency dehopped binary and 4-ary non-coherent frequency shift keyed signalling (NCFSK) over a Gaussian channel. Orthogonal FSK signals and a hopping rate of one hop per FSK symbol were simulated. Simulations were performed with and without forward error correction. Rate 1/3, constraint length 8 and rate 1/2, constraint length 7 convolutional codes with hard decision Viterbi decoding were used. A family of curves showing the probability of bit error versus Eb/No was produced. Coding gains of about 2 dB at an error rate of 1 in 10⁵ were observed for binary NCFSK and a coding gain of less than 1.0 dB was observed at the same error rate for 4-ary NCFSK. Some extensions of the work are suggested for future study"--Abstract, page 1. Issued also in print format. Phase shift keying Simulation methods. Signal processing Digital techniques. Modulation par déplacement de phase Méthodes de simulation. Traitement du signal Techniques numériques. Communications Research Centre (Canada), issuing body. CRC technical note ; no. 722. (CaOODSP)9.882494 PDF 1.09 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-8-722-1984-eng.pdf