A digital modulation system provides enhanced multipath performance by using modified orthogonal codes with reduced autocorrelation sidelobes while maintaining the cross-correlation properties of the modified codes. For example, the modified orthogonal codes can reduce the autocorrelation level so as...http://www.google.es/patents/US6404732?utm_source=gb-gplus-sharePatente US6404732 - Digital modulation system using modified orthogonal codes to reduce autocorrelation
Digital modulation system using modified orthogonal codes to reduce ...
