Unequal Code-Length Code Structure for Better Acquisition Performance in Weak Signal Environment
Xiangli Zhang, Xiulin Hu, Zuping Tang · Journal of Communications · 2013
In this paper, a new PRN code optimal design based on unequal-length code modulation is proposed. The better performance of code acquisition in weak signals will be achieved by using this method, because the cross- correlations between different signals have been sliding, thus suppressing multiple access interference effectively. Theoretical analysis and simulation show that this design has predictive power for compressing multi-access interference. Meanwhile, it does not need extra acquisition effort, thus it is convenient, feasible and effective.