00000nam 2200000zi 4500 9.894567 CaOODSP 20221107173756 m o d f cr bn||||||||| 201210s1978 onca ob f000 0 eng d CaOODSP eng rda CaOODSP Co24-3/7-1312-1978E-PDF Rook, B. J., author. Study of the behavior and stability of phase fronts on short time scales / by B.J. Rook. Ottawa : Communications Research Centre, 1978. 1 online resource (iii, 34 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CRC report ; no. 1312 "Radio and Radar Branch." "February 1978." "This work was sponsored by the Department of National Defence, Research and Development Branch under Project No. 3833G." Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. Includes bibliographical references (page 28). "Measurements have been made over an 1181-metre antenna-aperture of the phase of radio waves received after propagation via the ionosphere. Data were obtained for two paths: the first a 453 km, mid-latitude link, the second a 1950 km, sub-auroral link. In both cases, the signals from the individual elements in the array were sampled at intervals of about 20 milliseconds. The decorrelation of phase-front shape with increasing time displacement was then calculated. For the mid-latitude path data, it was found that the mean time for the wave front to decorrelate to 0.7 was about 5 seconds, while for the longer, higher-latitude path, the corresponding time was approximately 1.1 seconds"--Abstract, page 1. Issued also in print format. Ionospheric radio wave propagation. Radio Interference. Ondes radioélectriques Propagation dans l'ionosphère. Radio Brouillage. Communications Research Centre (Canada), issuing body. CRC report ; no. 1312. (CaOODSP)9.882492 PDF 1.89 MB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-7-1312-1978-eng.pdf