Title :
A high speed 880 channel digital interpolator network
Author :
Carty, C.A. ; Jamali, M.M. ; Eldin, A.G. ; Kwatra, S.C. ; Jones, R.E.
Author_Institution :
Dept. of Electr. Eng., Toledo Univ., OH, USA
fDate :
30 Apr-3 May 1995
Abstract :
A high speed 800 channel digital interpolator network has been designed. The interpolator network accepts data from the demultiplexer onboard a satellite which separates 800 telephone channels from ground stations in an FDMA format into individual channels in a TDM format at 45 ksamples/sec/ch. The interpolator then changes the sampling rate of the data input to 64 ksamples/sec/ch so that the demodulator onboard the satellite can correctly demodulate all of the 800 channels with a requirement of two samples/symbol data rate. An interpolator network has been implemented using 0.8 micron CMOS technology and is suitable for real time processing
Keywords :
demodulators; demultiplexing equipment; digital communication; frequency division multiple access; interpolation; satellite communication; telecommunication networks; time division multiplexing; transmultiplexing; 0.8 micron; CMOS technology; FDMA; TDM; ground stations; high speed 880 channel digital interpolator network; onboard demultiplexer; real time processing; sampling rate; satellite; telephone channels; CMOS technology; Costs; Demodulation; Frequency division multiaccess; Interpolation; NASA; Sampling methods; Satellite ground stations; Telephony; Time division multiplexing;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.521457
