bits2nec.m

在一个任意的天线方向图下

#!/usr/bin/octave -qH

% -q causes Octave to run in 'quiet' mode, -H prevents the commands we use
% from being added to Octave's command history.

if (nargin ~= 3)
	fprintf (stderr, 'Usage: bits2nec.m horiz | vert x1 x2\n');
	exit (-1);
end

max_length = 1;
n_segments = 100;
diameter = 0.002;
frequency = 150;

hv = nth (argv, 1);
x1 = sscanf (nth (argv, 2), '%f');
x2 = sscanf (nth (argv, 3), '%f');

if (~strcmp (hv, 'horiz') && ~strcmp (hv, 'vert'))
	fprintf (stderr, 'Usage: bits2nec.m horiz | vert x1 x2\n');
	exit (-2);
end

if (x1 == 0)
	x1 = 1;
end

if (x2 == 0)
	x2 = 1;
end

printf ('CM Automatically-generated NEC script (from bits2nec.m)\n');
printf ('CE\n');

p1 = -x1 * max_length / 256;
p2 = x2 * max_length / 256;

segment = floor (x1 / (x1 + x2) * n_segments) + 1;

printf ('GW 1 %i 0 0 %f 0 0 %f %f\n', n_segments, p1, p2, diameter);
printf ('GE\n');
printf ('LD 5 1 0 0 3.767E+07\n');
printf ('EX 0 1 %i 0 100\n', segment);
printf ('FR 0 1 0 0 %f\n', frequency);

if (strcmp (hv, 'horiz'))
	printf ('RP 0 1 360 0000 90 0 0 1\n');
else
	printf ('RP 0 360 1 0000 0 0 1 0\n');
end

printf ('EN\n');