initial commit / add all books

3 files changed, 28 insertions, 0 deletions

diff --git a/40/CH6/EX6.8/Exa_6_8.sce b/40/CH6/EX6.8/Exa_6_8.sce
new file mode 100755
index 000000000..811691ac4
--- /dev/null
+++ b/40/CH6/EX6.8/Exa_6_8.sce
@@ -0,0 +1,28 @@
+//Digital Resonator design with peak gain 50 HZ 

+//and 3 db bandwidth of 6HZ at sampling of 300 HZ

+clf();

+s=%s;

+F=0:150;

+f=F/300;

+s=exp(%i*2*%pi*f);

+for i=1:151

+    H1(i)=(0.1054*(s(i)^2))/(s(i)^2-0.9372*s(i)+0.8783);

+end

+H1=abs(H1);

+H2=H1(40:60);

+F1=40:60;

+f1=F1/300;

+a=gca();

+a.x_location="origin";

+a.y_location="origin";

+plot2d(F,H1)

+xlabel('Analog frequency F');

+ylabel('magnitude');

+xtitle('Magnitude spectrum of digital resonator with peak 50HZ');

+xset('window',1);

+a.x_location="origin";

+a.y_location="origin";

+plot2d(F1,H2)

+xlabel('Analog frequency F');

+ylabel('magnitude');

+xtitle('passband detail');
\ No newline at end of file
diff --git a/40/CH6/EX6.8/Exa_6_8_0.jpg b/40/CH6/EX6.8/Exa_6_8_0.jpg
new file mode 100755
index 000000000..87a34442c
--- /dev/null
+++ b/40/CH6/EX6.8/Exa_6_8_0.jpg
diff --git a/40/CH6/EX6.8/Exa_6_8_1.jpg b/40/CH6/EX6.8/Exa_6_8_1.jpg
new file mode 100755
index 000000000..e6e818d46
--- /dev/null
+++ b/40/CH6/EX6.8/Exa_6_8_1.jpg