The Application Of Liner Mode Estimation Theory In The Smart-antenna And Decision & Estimation Theory In The Anti-jamming Of DSSS System

Recently, as the development of military communication, especially, thetechnology of jamming and anti-jamming, it is significant to utilize more thanone technique to countermine the hostile interference. In this paper, we focus onthe applications of liner model estimation theory in the smart-antenna and deci-sion & estimation theory in the anti-jamming of DSSS(Direct Sequence SpreadSpectrum) system. First, a linear model was proposed to represent the relationof angle-gap of channels, and then we estimate the model parameterse by LeastSquare algorithm. In the second part of this paper, we briefly introduced a newmethod that the signal was demodulated and despreaded in the MF(MediumFrequence) simultaneously. The simulation result demonstrated the BER(BitError Ratio) is less than 0.00001 when the SNR is-20dB.