GPS signal acquisition using the repeatability of successive code phase measurements |
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| Authors: | Zhen Zhu Frank van Graas Janusz Starzyk |
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| Institution: | (1) School of Electrical Engineering and Computer Science, Ohio University, Athens, OH 45701, USA |
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| Abstract: | This paper introduces a new method for GPS signal acquisition, which is based on the repeatability of successive code phase
measurements and the M-of-N search algorithm. The performance of the proposed method in terms of probability of signal detection
is similar to that of traditional methods, except that the calculation of the probability of detection does not rely on the
noise distribution or the Carrier-to-Noise ratio (C/N0). The code phase repeatability-based method is presented along with equations for probability of detection and probability
of false detection. If the distribution of the noise is known, it also provides an estimate of the C/N0. The proposed method is illustrated for coherent and non-coherent acquisition and C/N0 estimation. |
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| Keywords: | GPS signal acquisition M-of-N search Code phase repeatability |
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