Title :
Realization of O-QPSK IF receiver for small and medium capacity digital radio relay systems
Author :
P. Manojlovic;M. Peric;D. Simic
Author_Institution :
Inst. of Microwave Techniques & Electron., Novi Beograd, Serbia
fDate :
6/23/1905 12:00:00 AM
Abstract :
We describe the receiver for O-QPSK modulation with coherent detection for small and medium capacity digital radio relay systems (DRRS). Its characteristics are: large dynamic range (from -70 dBm to 0 dBm), large carrier recovery pull in range (at least /spl plusmn/700 kHz) and resistance to cochannel, adjacent channel and continuous wave interference according to ETSI standards. Very important is that the receiver is designed for an extended temperature range from -30/spl deg/C to +55/spl deg/C. This receiver is used in Institute IMTELs DRRS RRU13A and RRU23A.
Keywords :
"Receivers","Digital communication","Digital relays","Frequency","Dynamic range","Band pass filters","Microwave filters","Radio transmitters","Digital modulation","Interference"
Conference_Titel :
Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2001. TELSIKS 2001. 5th International Conference on
Print_ISBN :
0-7803-7228-X
DOI :
10.1109/TELSKS.2001.955882
