PERFORMANCE EVALUATION OF MAXIMAL SEQUENCES IN PRESENCE OF BROADBAND JAMMER FOR BAND PASS BFSK SYSTEM OVER AWGN CHANNEL Mrs
نویسندگان
چکیده
Spread spectrum modulation techniques ensure protection against externally generated interfering signals i.e. signals generated from jammers, developed initially for military applications. This protection against jamming waveforms is achieved by forcing the information signal to occupy bandwidth many times greater than the signal bandwidth, this makes the transmitted signal to appear as noise, making impossible to detect for unintended user, listening to the channel [1].The objective of this paper is to evaluate the Bit Error Rate performance of maximal sequences as spreading codes in presence of broadband jammer for binary phase shift keying modulation under additive white Gaussian channel conditions. The effect of the broadband jammer i.e. BER versus SNR is shown using graphical approach using MATLAB ® .
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