Effects of cell correlations in a matched-filter PN code acquisition for direct-sequence spread-spectrum systems

In this paper, signed-rank based nonparametric detectors are used for pseudonoise (PN) code acquisition in direct-sequence spread-spectrum (DS/SS) systems. We first derive the locally optimum rank (LOR) detector and then propose the locally suboptimum rank (LSR) and modified signed-rank (MSR) detectors using approximate score functions. We compare the single-dwell scheme without the verification mode using the proposed LSR and MSR detectors with that using the conventional squared-sum (SS) and modified sign (MS) detectors. From the simulation results, it is shown that the proposed LSR and MSR detectors perform better than the MS detector by about 2-3 dB and are nearly optimum. Index Terms-Direct-sequence spread-spectrum systems, nonparametric detectors, PN code acquisition, signed-rank statistics.Hong Gil Kim (S'97-M'01) was born in Daegoo, Korea, on July 20, 1972. He received the B.S. degree (summa cum laude) in electronic communication en-

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An unambiguous detector architecture for Galileo ES signal acquisition

Shivaramaiah

Dempster

2008

2008 42nd Asilomar Conference on Signals, Systems and Computers

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Effects of cell correlations in a matched-filter PN code acquisition for direct-sequence spread-spectrum systems

Cited by 14 publications

References 20 publications

A DS-CDMA code acquisition scheme robust to residual code phase offset variation

A DS-CDMA code acquisition scheme robust to residual code phase offset variation

PN code acquisition using signed-rank-based nonparametric detectors in DS/SS systems

An unambiguous detector architecture for Galileo ES signal acquisition

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