Title :
Closed form expressions for computing the occupied bandwidth of PCM/PSK/PM signals
Author :
Nguyen, Tien Manh
Author_Institution :
Jet Propulsion Lab., Pasadena, CA, USA
Abstract :
A computational technique to determine the occupied bandwidth for a class of PCM/PSK/PM signals is presented. The signals considered use either a squarewave or sinewave subcarrier. Closed-form expressions for the occupied bandwidth as a function of the subcarrier frequency-to-bit-rate ratio with modulation index as a parameter are derived using linear-fitting techniques. It is found that the occupied bandwidth for squarewave subcarrier at low modulation index is about 10 to 15 times larger than the sinewave
Keywords :
phase modulation; phase shift keying; pulse-code modulation; PCM signals; PM signals; PSK signals; closed form expressions; linear-fitting techniques; modulation index; occupied bandwidth; sinewave subcarrier; squarewave subcarrier; subcarrier frequency-to-bit-rate ratio; Bandwidth; Chirp modulation; Frequency; Laboratories; Optical signal processing; Phase change materials; Phase shift keying; Propulsion; Telemetry; Voltage;
Conference_Titel :
Electromagnetic Compatibility, 1991. Symposium Record., IEEE 1991 International Symposium on
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-7803-0158-7
DOI :
10.1109/ISEMC.1991.148266
