Title :
Phase and frequency estimation for PSK packets: bounds and algorithms
Author :
Cowley, William G.
Author_Institution :
Signal Processing Res. Inst., South Australia Univ., Pooraka, SA, Australia
fDate :
1/1/1996 12:00:00 AM
Abstract :
New Cramer-Rao lower bounds (CRBs) are derived for the estimation of phase offset, and frequency offset, from a block of random BPSK or QPSK symbols at low signal-to-noise (SNR) ratios. These bounds are compared to existing bounds which apply to the unmodulated carrier (or to known PSK symbols), and to the performance of some estimation algorithms
Keywords :
frequency estimation; packet switching; phase estimation; quadrature phase shift keying; random processes; Cramer-Rao lower bounds; PSK packets; PSK symbols; SNR; estimation algorithms performance; frequency offset estimation; low signal-to-noise ratios; phase offset estimation; random BPSK symbols; random QPSK symbols; unmodulated carrier; Binary phase shift keying; Demodulation; Feedback; Frequency estimation; Frequency synchronization; Phase estimation; Phase shift keying; Quadrature phase shift keying; Signal to noise ratio; Timing;
Journal_Title :
Communications, IEEE Transactions on
