clear;clc;x = rand(1,100)>0.5;%產生信號ovsf = [1,1,-1,-1];%擴品碼%串并轉換，一路變兩路xi = x(1:2:length(x))xq = x(2:2:length(x))%QPSK調制I_Symbols = 2*xi-1;Q_Symbols = 2*xq-1;%ovsf擴頻muxi = kron(I_Symbols,ovsf);muxq = kron(Q_Symbols,ovsf);%信號復數化Tx = complex(muxi,muxq)%Eb是如何計算的？如何使發送信號功率歸一化的？