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/Δ f. 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.
Original language | English |
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Pages (from-to) | 2128-2131 |
Number of pages | 4 |
Journal | Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing |
Volume | 4 |
State | Published - 1 Dec 1989 |
Externally published | Yes |
Event | 1989 International Conference on Acoustics, Speech, and Signal Processing - Glasgow, Scotland Duration: 23 May 1989 → 26 May 1989 |
ASJC Scopus subject areas
- Software
- Signal Processing
- Electrical and Electronic Engineering