Title :
Modified CRLB on the modulation parameters of a PSK signal
Author_Institution :
Dept. of Electr. Eng., Missouri Univ., Columbia, MO, USA
fDate :
6/21/1905 12:00:00 AM
Abstract :
PSK is a common modulation format in digital communications. The estimation of modulation parameters is necessary for emitter interception in support of numerous military applications. This paper develops the Cramer-Rao lower bound (CRLB) for the modulation parameters of a PSK signal. The modulation parameters considered are the carrier frequency, the symbol time and the signal amplitude. The results show that the CRLBs for the modulation parameters are the same for M-ary PSK signals when M>2. The CRLBs between BPSK and M-ary PSK with M>2 are very close, although they are not exactly identical. The effect of pulse shaping on the CRLB of modulation parameters are also investigated
Keywords :
digital communication; digital signals; military communication; parameter estimation; phase shift keying; pulse shaping; BPSK; M-ary PSK; PSK signal; carrier frequency; digital communications; emitter interception; military applications; modified Cramer-Rao lower bound; modulation parameters; pulse shaping effect; signal amplitude; symbol time; Amplitude modulation; Binary phase shift keying; Digital modulation; Filters; Frequency; Parameter estimation; Phase shift keying; Pulse modulation; Pulse shaping methods; Signal processing;
Conference_Titel :
Military Communications Conference Proceedings, 1999. MILCOM 1999. IEEE
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-5538-5
DOI :
10.1109/MILCOM.1999.822639
