采用等效低通法的OQAM信号正交性的分析

Analysis of OQAM Signal Orthogonality Using Equivalent Lowpass Metthod

根据等效低通法,利用复包络的复互相关函数提出了两个实带通信号的等效低通正交条件,即2个复信号的广义正交条件。根据这个条件,从同一子信道和相邻子信道两个方面全面地分析了OQAM信号的正交性。

Based on the equivalent lowpass method,the equivalent lowpass orthogonality condition of two real bandpass signals,i. e. the orthogonality condition of two complex signals in wide-sense, is presented using complex cross-correlation function of complex envelopes. On the basis of this condition, the analysis of QQAM signal orthogonality is completely presented in both sides of the same subchannel and adjacent subchannels.