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 --- 1997/CH5/EX5.1/example1.sce | 12 ++++++++++++ 1997/CH5/EX5.4/example4.sce | 18 ++++++++++++++++++ 2 files changed, 30 insertions(+) create mode 100755 1997/CH5/EX5.1/example1.sce create mode 100755 1997/CH5/EX5.4/example4.sce (limited to '1997/CH5') diff --git a/1997/CH5/EX5.1/example1.sce b/1997/CH5/EX5.1/example1.sce new file mode 100755 index 000000000..533310e95 --- /dev/null +++ b/1997/CH5/EX5.1/example1.sce @@ -0,0 +1,12 @@ +//Chapter-5 example 1 +//============================================================================= +clc; +clear; +//input data +mprintf('mathematically ellipsoid is represented by \n((x/a)^2)+((y/b)^2)+((z/c)^2) = 1\n '); +mprintf('\nThe approximate expression for ellipsoid backscattered RCS is given by\n '); +mprintf('\nσ =(π*a^2 b^2 c^2)/[ a^2 (sinθ)^2 (cosɸ)^2+ b^2 (sinθ)^2 (sinɸ)^2+c^2 (cosθ)^2 ]^2\n'); +mprintf('\nif a = b ,the ellipsoid becomes Roll symmetric,above eqn becomes\n'); +mprintf('\nσ = (π* b^4 c^2)/[ a^2 (sinθ)^2 + c^2 (cosθ)^2 ]^2\n'); + +//===============end of the program============================================ diff --git a/1997/CH5/EX5.4/example4.sce b/1997/CH5/EX5.4/example4.sce new file mode 100755 index 000000000..6323e5fbb --- /dev/null +++ b/1997/CH5/EX5.4/example4.sce @@ -0,0 +1,18 @@ +//Chapter-5 example 4 +//============================================================================= +clc; +clear; +//input data +lamda = 0.03;//wavelength in m +Pt = 250*10^3;//transmitter power +G = 2000;//antenna gain +R = 50*10^3;//maximum range +Pr = 10*10^-12;//minimum detectable power +//Calculations +Ae = (lamda*lamda*G)/(4*%pi);//effective aperture area +RCS = (Pr*(4*%pi*R*R)^2)/(Pt*G*Ae);//Radar cross section of the target + +//output +mprintf('Radar cross section of the target is %3.2f m^2',RCS); + +//================end of the program=========================================== -- cgit