Title :
DS/SSMA amplitude and phase estimation with unknown bits using a correlation matrix
Author :
Moon, Todd ; Xie, Zhenhua ; Rushforth, Craig ; Short, Robert
Author_Institution :
Dept. of Electr. Eng., Utah Univ., Salt Lake City, UT, USA
fDate :
30 Sep-3 Oct 1990
Abstract :
An algorithm is proposed for the estimation of amplitude and phase in a spread-spectrum multiple-access (SSMA) environment in additive white Gaussian noise (AWGN) without prior knowledge of the data bits. The estimate is obtained from the autocorrelation of the matched filter outputs. Estimator complexity is O(K2) for fixed delay. Convergence is discussed, and simulation results that show that the estimator compares favorably with a maximum likelihood estimator with known bits are presented
Keywords :
correlation theory; filtering and prediction theory; matched filters; multi-access systems; parameter estimation; spread spectrum communication; white noise; AWGN; DS/SSMA; additive white Gaussian noise; amplitude estimation; autocorrelation; convergence; correlation matrix; estimator complexity; matched filter outputs; phase estimation; spread-spectrum multiple-access; unknown data bits; AWGN; Additive white noise; Amplitude estimation; Autocorrelation; Convergence; Delay estimation; Matched filters; Maximum likelihood estimation; Phase estimation; Spread spectrum communication;
Conference_Titel :
Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE
Conference_Location :
Monterey, CA
DOI :
10.1109/MILCOM.1990.117449
