diff options
Diffstat (limited to '2279/CH7/EX7.10')
| -rw-r--r-- | 2279/CH7/EX7.10/Ex7_10.sce | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/2279/CH7/EX7.10/Ex7_10.sce b/2279/CH7/EX7.10/Ex7_10.sce new file mode 100644 index 000000000..67708d051 --- /dev/null +++ b/2279/CH7/EX7.10/Ex7_10.sce @@ -0,0 +1,22 @@ +//x[n] = 0.5+0.5*cos(2*%pi/N)n
+clear;
+close;
+clc;
+N = 8;
+n = 0:0.01:N;
+Wo = 2*%pi/N;
+xn =0.5*ones(1,length(n))+0.5*cos(Wo*n);
+for k =0:N-2
+ C(k+1,:) = exp(-sqrt(-1)*Wo*n.*k);
+ a(k+1) = xn*C(k+1,:)'/length(n);
+ if(abs(a(k+1))<=0.1)
+ a(k+1)=0;
+ end
+end
+a =a';
+a_conj =conj(a);
+ak = [a_conj($:-1:1),a(2:$)];
+Mag_ak = abs(ak);
+k = -(N-2):(N-2);
+plot2d3('gnn',k,Mag_ak,5)
+xtitle('abs(ak)','k','ak')
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