Ds/ss Code Acquisition Using a Locally Suboptimum Rank Detector
نویسندگان
چکیده
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 a locally suboptimum rank (LSR) detector and a modified signed-rank (MSR) detector 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 theMS detector by about 2 3dB and are nearly optimum.
منابع مشابه
PN code acquisition using signed-rank-based nonparametric detectors in DS/SS 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 verificatio...
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