00000nam 2200000zi 4500 9.879430 CaOODSP 20221107165518 m o d f cr |n||||||||| 191126e198002##oncad|| obt f000 0|eng d CaOODSP eng rda CaOODSP n-cn--- Co24-212/1980E-PDF Wittke, P. H.‏ ‎ (Paul H.)‏, author. Band efficient digital angle modulation signals : final report / by P.H. Wittke, G.S. Deshpande. Ottawa : [Department of Communications], February 1980. 1 online resource (ix, 161 pages) : charts, figures text txt rdacontent computer c rdamedia online resource cr rdacarrier Research report ; No. 80-1 Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. Includes bibliographical references (pages 135-140). "The increasing demand for communications has put the allocation of bandwidth in radio systems at a premium. The problem can be alleviated by the following techniques [1,2]: i) New allocations at higher frequencies ii) Frequency reuse techniques iii) Data compression by source encoding iv) Spectrally efficient modulation. The last technique as applied to data transmission is studied in this report. The primary objective of spectrally efficient data transmission is to transmit data at a specified rate and error performance in as small a channel bandwidth as possible. The investigation is further restricted to constant envelope signais. Constant envelope signals are desirable in communication systems due to their immunity to fading and non-linear distortion"--Introduction, page 1. Angle modulation. Radio frequency modulation Testing. Modulation d'angle. Modulation de fréquence. Canada. Department of Communications. Queen's University (Kingston, Ont.). Dept. of Electrical Engineering. PDF 7.22 MB https://publications.gc.ca/collections/collection_2019/isde-ised/Co24/Co24-212-1980-eng.pdf