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The advantage of circular correlation based on FFT is getting a large searching range, less time for processing and making the speed of acquisition much faster. The parameters such as the data points, segments and the ratio of sampling all effect the capability of the acquisition in the process of the circular correlation. The key parameters of the process based on FPGA can be designed and optimized...
General acquisition algorithms for GPS signals in time domain and frequency domain have some advantages and disadvantages. A new modified averaging circular correlation algorithm based on FFT is proposed and its realization process is given in this paper. Compared with the general algorithms its performance is improved. This novel algorithm is demonstrated using actual sampling data of GPS signals...
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