Shao-lei Yi1 Hui2 LI
1.College of Information & Electric Engineering Shandong University of Science & Technology Qingdao, China, 266510
2.Institute of Information Engineering China University of Mining & Technology Beijing, China, 100083
Abstract—An algorithm for GPS receiver performing to mitigate cross correlations between weak satellite signal and strong satellite signals is presented. By using the tracking result of strong signal, the cross-correlation and cross correlation sequence between weak signals and strong signal can be computed, further modifying the local generate C/A code to drive the cross correlation to zero. The advantage of this method is that it does not require estimation of the strong signal amplitude and it partially independent of the data bit value. Simulation result shows it can eliminate the interference of 75%, and this method is at the cost of sensitivity loss of 0.28dB.
Keywords- cross correlation; relative doppler frequency shift; code phase difference
Manuscript Number: 1674-8042(2010)supp.-0005-06
dio: 10.3969/j.issn1674-8042.2010.supp..02
References
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