psk,fsk,ask matlab 程序不懂求助

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psk,fsk,ask matlab 程序不懂求助
PSK系统程序：clear all; M=4;Fd=1;Fs=32; SNRperBit=5; adjSNR=SNRperBit-10*log10(Fs/Fd)+10*log10(log2(M));%原始信号 x=randint(5000,1,M); tone=0.5; randn('state',1945724); w1=dmodce(x,Fd,Fs,'psk',M,tone); y1=awgn(w1,adjSNR,'measured',[],'dB'); z1=ddemodce(y1,Fd,Fs,'psk',M,tone); PSKser=symerr(x,z1); 运行结果显示：FSK系统程序:clear all; M=4;Fd=1;Fs=32; SNRperBit=5; adjSNR=SNRperBit-10*log10(Fs/Fd)+10*log10(log2(M));%原始信号 x=randint(5000,1,M); tone=0.5; randn('state',1945724); w1=dmodce(x,Fd,Fs,'fsk',M,tone); y1=awgn(w1,adjSNR,'measured',[],'dB'); z1=ddemodce(y1,Fd,Fs,'fsk',M,tone); FSKser=symerr(x,z1); 运行结果显示：ASK系统程序:clear all; M=4;Fd=1;Fs=32; SNRperBit=5; adjSNR=SNRperBit-10*log10(Fs/Fd)+10*log10(log2(M));%原始信号 x=randint(5000,1,M); tone=0.5; randn('state',1945724); w1=dmodce(x,Fd,Fs,'qask',M,tone); y1=awgn(w1,adjSNR,'measured',[],'dB'); z1=ddemodce(y1,Fd,Fs,'qask',M,tone); ASKser=symerr(x,z1); 运行结果显示：

psk,fsk,ask matlab 程序不懂求助 m'西西沃人气 1 回答 0 提问时间 2008-01-17 14:47 PSK系统程序： clear all; M=4;Fd=1;Fs=32; SNRperBit=5; adjSNR=SNRperBit-10*log10(Fs/Fd)+10*log10(log2(M));%原始信号 x=randint(5000,1,M); tone=0.5; randn('state',1945724); w1=dmodce(x,Fd,Fs,'psk',M,tone); y1=awgn(w1,adjSNR,'measured',[],'dB'); z1=ddemodce(y1,Fd,Fs,'psk',M,tone); PSKser=symerr(x,z1); 运行结果显示： FSK系统程序: clear all; M=4;Fd=1;Fs=32; SNRperBit=5; adjSNR=SNRperBit-10*log10(Fs/Fd)+10*log10(log2(M));%原始信号 x=randint(5000,1,M); tone=0.5; randn('state',1945724); w1=dmodce(x,Fd,Fs,'fsk',M,tone); y1=awgn(w1,adjSNR,'measured',[],'dB'); z1=ddemodce(y1,Fd,Fs,'fsk',M,tone); FSKser=symerr(x,z1); 运行结果显示： ASK系统程序: clear all; M=4;Fd=1;Fs=32; SNRperBit=5; adjSNR=SNRperBit-10*log10(Fs/Fd)+10*log10(log2(M));%原始信号 x=randint(5000,1,M); tone=0.5; randn('state',1945724); w1=dmodce(x,Fd,Fs,'qask',M,tone); y1=awgn(w1,adjSNR,'measured',[],'dB'); z1=ddemodce(y1,Fd,Fs,'qask',M,tone); ASKser=symerr(x,z1); 运行结果显示：

介绍一下fm am fsk ask psk 都是啥数字信号11010 fsk方式 psk方式 ask方式该如何表示啊.. 一、选择题（每小题2分,共40分） 2．QAM 调制技术等于：A．ASK+FSK B．FSK+PSK C．PSK+ASK 通信按调制方式分类：线性：AM,SSB,DSB,VSB.非线性：FM,PM 数字：ASK,FSK,PSK,DPSK,脉冲 matlab初学者,程序不懂! 一个matlab简单程序求助有关matlab程序的求助. 求助MATLAB中最小二乘法拟合程序求助Matlab程序,用plot画图~ 求助正则化算法的Matlab程序求助：leslie 数学建模程序（MATLAB）求助一段关于信号傅里叶变换的matlab程序