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*****2.矩形波****************% fs=10;%设定采样频率 t=-5:0.1:5; x=rectpuls(t,2); x=x(1:99); figure(2); subplot(231); plot(t(1:99),x);%作矩形波的时域波形 xlabel('t'); ylabel('y'); title('矩形波时域波形'); grid; %进行F

function fm_tap(flag) % FM_TAP define tap changer on voltage dependent load % % FM_TAP(FLAG) % FLAG = 1 algebraic equations % FLAG = 2 algebraic Jacobians % FLAG = 3 differential equ

function fm_lf(flag) % FM_LF compute power flow equations and Jacobian for % transmission lines. % % FM_LF(FLAG) % FLAG = 1: power flow equations % FLAG = 2: power flow Jacobian matrix

function [snrdB,ptotdB,psigdB,pnoisedB] = calcSNR(vout,f,fBL,fBH,w,N) % SNR calculation in the time domain (P. Malcovati, S. Brigati) % % [snrdB,ptotdB] = calcSNR(vout,f,fBL,fBH,w,N) % [snrdB,ptot

function [snrdB,ptotdB,psigdB,pnoisedB] = calcSNR(vout,f,fB,w,N,Vref) % SNR calculation in the time domain (P. Malcovati, S. Brigati) % vout: Sigma-Delta bit-stream taken at the modulator output %

function [snrdB,ptotdB,psigdB,pnoisedB] = calcSNRBP(vout,f,fBL,fBH,w,N,Vref) % function [snrdB,ptotdB,psigdB,pnoisedB] = calcSNR(vout,f,fB,w,N,Vref) 25/09/99 FF Removed % SNR calculation in the time

function v=undbm(p,z) % v=undbm(p,z=50) = sqrt(z*10^(p/10-3)) rms voltage equivalent to a power p indBm if nargin

function y=dbm(x) % dbm(x) = 10*log10(x*1000) The equivalent in dBm of a power x in W y = -Inf*ones(size(x)); if isempty(x) return end nonzero = x~=0; y(nonzero) = 10*log10(abs(x(nonzero)))+30;

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