... ans = A(PBSK) = 0.03361 ans = Cong suat cua tin hieu PBSK la :0.00056 ans = A(ASK) = 0.04753 ans = Cong suat cua tin hieu ASK la :0.00113 ans = A(FSK) = 0.03006 ans = Cong suat cua tin hieu FSK ... mot Tb ve z chu ky tin hieu hinh sin function wave(x,y,z,t,u) %x la toa ma ham wave se ve tin hieu sin %y la dich pha cua tin hieu %z la so chu ky tin hieu sin mot Tb %t la so chu ky Tb %u la bien...
... polar_RZ'); -4- disp('30: ma Manchester'); disp('40: ma CMI'); linecode = input('chon dang ma se phan tich: '); switch linecode %%Truong hop cac ma don bit day du case {1} data3 = data2; TenDoThi='NRZ'; ... ylabel(['Bien do']); axis([0 bits+1 -1.2 1.2]); grid off; %Enconding using NRZ-L% %Mo rong khong gian lay mau% sampleRate = 2; if mod(linecode,10)==0 Y1 = reshape(ones(sampleRate, 1)*data3, 1, sampleRate*bits*2); ... sampleRate*bits); end %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %tinh FFT va ve thi cong suat% N=sampleRate*bits; if mod(linecode,10) == FFT_Y1 = abs(fft(Y1, N*2))/N/2; FFT_Y1 = fftshift(FFT_Y1); subplot(3,...
... } Bài (30 điểm) Viết lại chương trình C sau ASSEMBLY (cho 80486): #include #include void toupper(char *s) { int i = 0; while (s[i] != 0) { if (s[i] >= ‘a’ && s[i]
... ans = A(PBSK) = 0.03361 ans = Cong suat cua tin hieu PBSK la :0.00056 ans = A(ASK) = 0.04753 ans = Cong suat cua tin hieu ASK la :0.00113 ans = A(FSK) = 0.03006 ans = Cong suat cua tin hieu FSK ... mot Tb ve z chu ky tin hieu hinh sin function wave(x,y,z,t,u) %x la toa ma ham wave se ve tin hieu sin %y la dich pha cua tin hieu %z la so chu ky tin hieu sin mot Tb %t la so chu ky Tb %u la bien...