00000nam 2200000zi 4500 9.915277 CaOODSP 20250428143107 m o d f cr mn||||||||| 220909e199811##oncad ob f000 0 eng d CaOODSP eng rda CaOODSP eng eng fre Co24-3/7-98-006E-PDF Sychaleum, David, author. Analysis and experiments on the frequency-independent strong-signal suppressor (FISSS) / by David Sychaleum, E. Barry Felstead and Gilbert A. Morin. Ottawa : Industry Canada, Communications Research Centre, November 1998. 1 online resource (viii, 50 pages) : illustrations, graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier CRC report ; no. 98-006 Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. "This work was supported by the Canadian Department of National Defence through the Defence Research and Development Branch." Includes bibliographical references (pages 47-48). "The frequency-independent strong-signal suppressor (FISSS) uses nonlinear processing plus cancellation techniques to provide substantial interference suppression. However, only laboratory proof of its operation existed. Although considerable effort went into trying to determine the principle of operation, this principle was not found. In this report, some analytical and simulation attacks on this problem are described. Extensive laboratory measurements were made on devices operating at 1.5 GHz and 10 GHz. The 10 GHz device was combined with direct-sequence spread spectrum, and had measured processing gains of about 12 dB against CW and frequency-modulated single tones. The experimental highlight was the successful suppression of noise interference of between 6 and 12 dB, depending upon the noise bandwidth"--Abstract, page iii. Includes abstracts in English and French. Spread spectrum communications. Radio Interference. Communications par étalement du spectre. Brouillage électromagnétique. Radio Brouillage. Electromagnetic interference. Communications Research Centre (Canada), issuing body. Canada. Defence Research and Development Branch, sponsoring body. CRC report ; no. 98-006. (CaOODSP)9.882492 PDF 1.35 MB https://publications.gc.ca/collections/collection_2022/isde-ised/co24/Co24-3-7-98-006-eng.pdf