LI Da-jun. Study on anti-interference of spread-spectrum communications system[J]. Journal of Light Industry, 2011, 26(6): 107-111. doi: 10.3969/j.issn.1004-1478.2011.06.028
Citation:
LI Da-jun. Study on anti-interference of spread-spectrum communications system[J]. Journal of Light Industry, 2011, 26(6): 107-111.
doi:
10.3969/j.issn.1004-1478.2011.06.028
Study on anti-interference of spread-spectrum communications system
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Received Date:
2011-03-31
Available Online:
2011-11-15
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Abstract
Because of the spectrum leakage and transient effects of BPSK demodulation technology,in order to improve the communication system of anti-interference capability,aiming at direct sequence spread spectrum communication system interference,BPSK modulation and demodulation techniques were optimizated using Shannon formula and the improved DFT(RT-DFT) algorithm.From the RT-DFT algorithms optimized mathematical model of the BPSK modulation and demodulation technology,anti-interference feasibility of the theory was analyzed.Simulation analysis proved that the algorithm was effective after the demodulation of BPSK narrowband interference suppression and improved error performance and enhance anti-interference ability.
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Proportional views
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