Solution of uncertainties in mixed interference suppression for DSSS
直扩系统复合干扰抑制不确定性解决方案

This paper proposed two algorithms: bandwidth and frame recognition, for solving the disorder arrangement and uncertain symbols caused by suppressing the multiple interferences using FICA in direct sequence spread spectrumDSSS systems. The bandwidth recognition realized interference suppression by using the signal sorting ability of FICA, and to ensure the accuracy of the demodulated data . The theoretical analysis and simulation results verify the effectiveness of the algorithms. When Eb/No=4dB, the rate of signal separation is above 99% and the rate of signal recognition is above 99. 4%.