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Title Anti-interterence Techniques in Communication System
Abstract
Today, the communication technology is developed rapidly and the research of anti-interference technology has already become an important content in communication.Through research and analysis to the various anti-interference technology in communications systems, transform domain communication systems (TDCS) has higher anti-interference performance, analyze and research the principal algorithms about basis function generation.Beeause AR estimation can bring to false spectrum peaks and fission of spectrum regions£¬a new algorithm based on adaptive multi-threshold is proposed and applied to TDCS.Utilizing the new algorithm threshold can be generated without the influence of interferenee¡¯s power ,therefor estimate interference signal more effectively.At the same time,the simulation to transform domain communication system(TDCS) is carried out based on the Matlab . The simulation results show that the TDCS based on a new algorithm has a good ability to narrow-band interference suppression, compared with the original algorithm, the system greatly reduce the bit error rate, have a stronger anti-interference capability and stronger adaptability.
Keywords transform domain communication system adaptive multi-threshold narrowband interference Matlab Simulation