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A GLONASS signal simulator is a necessity for the research of GLONASS navigation system. This paper presents a high fidelity signal simulator. To achieve the fidelity, six transmission channel errors and earth rotation caused transmission time error are particularly considered in the design and implementation of the signal simulator. This paper also provides comprehensive details of its design and...
Acquisition is one of the essential stages in the DSSS signal processing. The conventional acquisition methods may degrade when there is a code phase offset which in the worst case may be a quarter of one chip in this stage. A new acquisition method by using weighting adjustment is proposed to solve this problem. In this paper, we take GPS C/A code as an example to introduce this method. The performance...
Due to different requirements of Global Positioning System (GPS) applications, performances of GPS receiver vary greatly. In order to evaluate a GPS receiverpsilas performances, a simulation platform build on Matlab has been developed by this research. This platform includes four elements: user interface, GPS signal simulator (intermediate frequency, IF), civilian (C/A) software receiver and noise...
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