000 01939nam  2200325zi 4500
006m     o  d f      
007cr |n|||||||||
008190719e19750327oncd|||#ob   f000 0|eng d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn---
0861 |aCo24-127/1975E-PDF
24500|aFinal technical report on high speed continuous data modem / |cby Canadian Marconi Company, Telecommunications Division.
264 1|a[Ottawa] : |b[Department of Communications], |cMarch 27, 1975.
300 |a1 online resource (1 volume (various pagings)) : |bfigures
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
500 |aDigitized edition from print [produced by Innovation, Science and Economic Development Canada].
504 |aIncludes bibliographical references (page 59-60).
516 |aElectronic monograph in PDF format.
520 |a"Modulation schemes for application to continuous high bit rate digital transmission in terrestrial and satellite communication systems were studied, and their practical implementations. The major system limitation is the linearity ofthe high power amplifiers used in the transmitter. It is concluded that with present day technology QPSK (quadrature phaseshift keying) is optimum for satellite systems and QPR (quadrature partial response) is optimum for terrestrial systems.The report includes an assessment of parameters causing degradation from ideal system performance. A companion report under separate cover discusses market aspects"--Abstract.
7101 |aCanada. |bDepartment of Communications.
7102 |aCanadian Marconi Company.
85640|qPDF|s9.29 MB|uhttps://publications.gc.ca/collections/collection_2019/isde-ised/Co24/Co24-127-1975-eng.pdf