An offset-Z search strategy for spread spectrum systems

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1995Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Transactions on Communications, volume 43, pages 2,900-2,902 (issn: 0090-6778,

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Authors: Si-Ming Pan; Howard A. Grant; David E. Dodds; Surinder Kumar;

doi: 10.1109/26.477489 , 10.1109/milcom.1991.258434

An offset-Z search strategy for spread spectrum systems

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Abstract

A new Z search method is proposed which can significantly improve mean acquisition time when compared with the best previous Z search strategy. The codephase search starts from a position offset from centre of a range which has been determined from a priori information. The proposed search method includes previous Z search strategies as special cases. The distribution and mean of acquisition time have been developed for the proposed search strategies. With minimum mean acquisition time as objective, optimization of the starting position offset has been investigated.

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