DocumentCode :
1564257
Title :
Separation of close sinusoids by cross-coupled phase locked loop
Author :
Wulich, Dov ; Plotkin, E.I. ; Swamy, M.N.S. ; Kashi, E.
Author_Institution :
Dept. of Electr. & Comp. Eng., Concordia Univ., Montreal, Que., Canada
fYear :
1989
Firstpage :
2128
Abstract :
A study is made of a cross-coupled phase-locked loop (CCPLL) used for separation of close sinusoids with slowly varying frequencies. It is assumed that the sinusoids have equal amplitudes, and it is shown that the CCPLL system can effectively separate two sine signals with an observation interval T<1/Δf. An analysis in the presence of noise is also given. It is shown that a satisfactory phase estimation can be achieved for SNR ⩾15 dB. The result has application in fields such as ranging, symbol synchronization, and carrier recovery for coherent demodulation
Keywords :
phase-locked loops; signal detection; carrier recovery; close sinusoids; coherent demodulation; cross-coupled phase locked loop; phase estimation; ranging; separation; signal detection; symbol synchronization; Convergence; Costs; Frequency modulation; Mean square error methods; Phase locked loops; Production facilities; Radio frequency; Signal processing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location :
Glasgow
ISSN :
1520-6149
Type :
conf
DOI :
10.1109/ICASSP.1989.266883
Filename :
266883
Link To Document :
بازگشت