The Research Of NBI Suppression Using AET In DSSS

DSSS has abilities of resisting Gauss noises and WBI because of its DS communication mode, and has large communication capabilities because of its multi address communication characters, and has well abilities of measuring space and orientation because of the well space resolving power of pseudo-noise, so DSSS has been well used in martial communication, civil communication, orientation, navigation and remote sensing. Despite of the well abilities of resisting Gauss noises and WBI, DSSS can't resist the NBI very well.The thesis puts forward the SAET algorithm and the CCB algorithm for DS signals' character color on the bases of analyses of the general adaptive notch filter in frequency domain of DSSS, then modeling and analyzing for the two algorithms for resisting NBI.