Title :
Joint acquisition of PN code and adaptive beam-forming weight with reduced complexity
Author :
Zhang, Yingguang ; Xiong, Hui ; Li, Baoguo ; Xi, Yong
Author_Institution :
Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
A generalized structure of the spatial-temporal correlator (STC) is proposed for joint acquisition of PN code and adaptive beamforming weight in direct-sequence spread-spectrum (DSSS) systems with antenna array. Detection performance of the generalized STC is theoretically analyzed under Gaussian jamming. Analysis results show that the generalized STC retains the important features of the original STC such as effective jammer suppression and constant false alarm rate (CFAR), and it can reduce the computation complexity significantly only with negligible performance loss.
Keywords :
antenna arrays; array signal processing; correlation methods; jamming; pseudonoise codes; spread spectrum communication; Gaussian jamming; PN code; adaptive beamforming weight; antenna array; computation complexity; constant false alarm rate; direct-sequence spread-spectrum systems; jammer suppression; spatial-temporal correlator; Adaptive arrays; Antenna arrays; Array signal processing; Correlators; Jamming; Matched filters; Performance analysis; Performance loss; Receiving antennas; Spread spectrum communication; Antenna array; Code acquisition; Pseudo-noise (PN) codes; Spread spectrum communication;
Conference_Titel :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Print_ISBN :
978-1-4244-4856-2
Electronic_ISBN :
978-1-4244-5668-0
DOI :
10.1109/WCSP.2009.5371548
