From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 40/CH7/EX7.11/Exa_7_11.sce | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100755 40/CH7/EX7.11/Exa_7_11.sce (limited to '40/CH7/EX7.11') diff --git a/40/CH7/EX7.11/Exa_7_11.sce b/40/CH7/EX7.11/Exa_7_11.sce new file mode 100755 index 000000000..6df3d2b96 --- /dev/null +++ b/40/CH7/EX7.11/Exa_7_11.sce @@ -0,0 +1,14 @@ +//Anti Aliasing filter considerations +//minimum stop band attenuation As +B=input('enter no. of bits');//no. of samples +n=input('enter band width in KHZ'); +As=20*log10(2^B*sqrt(6)) +//nomalised frequency +Vs=(10^(0.1*As)-1)^(1/(2*n)) +fp=4;//pass edge frequency +fs=Vs*fp//stop band frquency +S=2*fs//sampling frequency +fa=S-fp//aliaed frequency +Va=fa/fp; +//Attenuation at aliased frequency +Aa=10*log10(1+Va^(2*n)) \ No newline at end of file -- cgit