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== PERIODIC AND NON-PERIODIC DT SIGNALS FROM A CT SIGNAL == | == PERIODIC AND NON-PERIODIC DT SIGNALS FROM A CT SIGNAL == | ||
+ | |||
+ | <pre> | ||
+ | %ECE 301 | ||
+ | %Daniel Barjum | ||
+ | %HW 2A | ||
+ | |||
+ | clear | ||
+ | clc | ||
+ | |||
+ | %periodic CT signal | ||
+ | |||
+ | f = 1; | ||
+ | t = 0:0.001:10; | ||
+ | x = real(exp(j*2*pi*f*t)); | ||
+ | subplot(3,1,1); | ||
+ | plot(t,x) | ||
+ | title('e^{(j*2\pi*f*)t} periodic CT signal'); | ||
+ | |||
+ | %periodic DT signal | ||
+ | |||
+ | f = 1/(2*pi); | ||
+ | n = 0:1:10; | ||
+ | x = real(exp(j*2*pi*f*n)); | ||
+ | subplot(3,1,2); | ||
+ | stem(n,x) | ||
+ | title('e^{(j*2\pi*f*)t} periodic DT signal'); | ||
+ | |||
+ | %non - periodic DT signal | ||
+ | |||
+ | f = pi/2; | ||
+ | n = 0:1:10; | ||
+ | x = real(exp(j*2*pi*f*n)); | ||
+ | subplot(3,1,3); | ||
+ | stem(n,x) | ||
+ | title('e^{(j*2\pi*f*)t} non-periodic DT signal'); | ||
+ | |||
+ | </pre> | ||
+ | |||
+ | [[Image:HW_2B PLOTS_ECE301Fall2008mboutin.jpg|center]] | ||
+ | |||
+ | == PART 2 == | ||
+ | |||
+ | '''MAKING A NON PERIODIC SIGNAL PERIODIC''' | ||
+ | |||
+ | algorithm was borrowed from a friend. | ||
+ | |||
+ | <pre> | ||
+ | |||
+ | clear | ||
+ | clc | ||
+ | |||
+ | t=0.0001:.01:1; | ||
+ | y=exp(3*t*j/17); | ||
+ | subplot(2,1,1); | ||
+ | plot(t,y) | ||
+ | |||
+ | x=[] | ||
+ | for lcv=1:10 | ||
+ | x=[x,y]; | ||
+ | end | ||
+ | |||
+ | t=[0.01:.01:10]; | ||
+ | subplot(2,1,2); | ||
+ | plot(t,x) | ||
+ | </pre> | ||
+ | |||
+ | [[Image:plot for part 2_ECE301Fall2008mboutin.jpg|center]] |
Latest revision as of 18:26, 12 September 2008
PERIODIC AND NON-PERIODIC DT SIGNALS FROM A CT SIGNAL
%ECE 301 %Daniel Barjum %HW 2A clear clc %periodic CT signal f = 1; t = 0:0.001:10; x = real(exp(j*2*pi*f*t)); subplot(3,1,1); plot(t,x) title('e^{(j*2\pi*f*)t} periodic CT signal'); %periodic DT signal f = 1/(2*pi); n = 0:1:10; x = real(exp(j*2*pi*f*n)); subplot(3,1,2); stem(n,x) title('e^{(j*2\pi*f*)t} periodic DT signal'); %non - periodic DT signal f = pi/2; n = 0:1:10; x = real(exp(j*2*pi*f*n)); subplot(3,1,3); stem(n,x) title('e^{(j*2\pi*f*)t} non-periodic DT signal');
PART 2
MAKING A NON PERIODIC SIGNAL PERIODIC
algorithm was borrowed from a friend.
clear clc t=0.0001:.01:1; y=exp(3*t*j/17); subplot(2,1,1); plot(t,y) x=[] for lcv=1:10 x=[x,y]; end t=[0.01:.01:10]; subplot(2,1,2); plot(t,x)