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

fYear

1990

fDate

30 Sep-3 Oct 1990

Firstpage

394

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE

Conference_Location

Monterey, CA

Type

conf

DOI

10.1109/MILCOM.1990.117449

Filename

117449