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Viewing changes to src/reflection_coefficient.c

Committer: Bazaar Package Importer
Author(s): Joop Stakenborg
Date: 2005-08-22 20:20:13 UTC
Revision ID: james.westby@ubuntu.com-20050822202013-mhhxp4xirdxrdfx1

Tags: upstream-1.19

Import upstream version 1.19

files added:

AUTHORS

BUGS

COPYING

ChangeLog

INSTALL

Makefile.am

Makefile.in

NEWS

README

TODO

aclocal.m4

config.guess

config.sub

configure

configure.ac

depcomp

doc

doc/Makefile.am

doc/Makefile.in

doc/dipole.1.html

doc/first.1.html

doc/index.html

doc/input.1.html

doc/optimise.1.html

doc/output.1.html

doc/pattern.jpg

doc/yagi.1.html

doc/yagi.jpg

install-sh

man

man/Makefile.am

man/Makefile.in

man/man1

man/man1/Makefile.am

man/man1/Makefile.in

man/man1/dipole.1

man/man1/first.1

man/man1/input.1

man/man1/optimise.1

man/man1/output.1

man/man1/yagi.1

man/man5

man/man5/Makefile.am

man/man5/Makefile.in

man/man5/first.5

man/man5/input.5

man/man5/optimise.5

man/man5/output.5

man/man5/yagi.5

missing

mkinstalldirs

src

src/3-element-yagi

src/Makefile.am

src/Makefile.in

src/auto.c

src/better.c

src/change_max_percentage_changes.c

src/check_flags.c

src/ci.c

src/cin.c

src/cis_hack.c

src/com_hack.c

src/com_hack.h

src/copy_matrix.c

src/dipole.c

src/display_antenna_currents.c

src/dobetter.c

src/dynamic.c

src/end_stop.c

src/error_message.c

src/fill_v_vector.c

src/fill_z_matrix.c

src/first.c

src/fitness.c

src/gain.c

src/gaussian.c

src/genetic.c

src/genetic_algorithm_lib.c

src/get_command_line_options.c

src/get_number_of_elements.c

src/getfiles.c

src/getopt.c

src/globals.h

src/input.c

src/install-sh

src/linear.c

src/lub_hack.c

src/lud_hack.c

src/max_gain.c

src/max_side.c

src/missing

src/mkinstalldirs

src/mpr_hack.c

src/mutual.c

src/new_length.c

src/nr_hack.h

src/nrutil.c

src/nrutil.h

src/optimise.c

src/optimising_for.c

src/output.c

src/perform.c

src/power_input.c

src/print_relavent_performance_data.c

src/print_z_matrix.c

src/random.c

src/randomise.c

src/rantest.c

src/read_header.c

src/read_yagi_data.c

src/reflection_coefficient.c

src/self.c

src/self2.c

src/selftest.c

src/sens.c

src/set_mean_structure.c

src/set_performance_structures.c

src/show_all_optimise_parameters.c

src/solve.c

src/string.c

src/subtract_structures.c

src/test2.c

src/test_stop.c

src/usage_first.c

src/usage_input.c

src/usage_optimise.c

src/usage_output.c

src/usage_yagi.c

src/version.c

src/vswr.c

src/write_coordinates.c

src/write_gain.c

src/write_gnuplot_header.c

src/write_header_to_disk.c

src/write_input_data.c

src/yagi.c

src/yagi.h

src/z_input.c

src/zbr_hack.c

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src/reflection_coefficient.c

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#ifdef HAVE_STDLIB_H

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#include <stdlib.h>

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#endif

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#include <stdio.h>

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#include <math.h>

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#include <errno.h>

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#include "yagi.h"

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extern int errno;

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extern double Zo;

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void reflection_coefficient(struct FCOMPLEX zi, double *magnitude, double *phase)

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{

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struct FCOMPLEX zo, rho;

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/* reflection coefficient rho = (Zi-Zo)/(Zi+Zo) */

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zo.r=Zo;

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zo.i=0;

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rho=Cdiv(Csub(zi, zo), Cadd(zi,zo));

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*magnitude=Cabs(rho);

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*phase=atan2(rho.i,rho.r);

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#ifdef DEBUG

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if(errno)

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{

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fprintf(stderr,"Errno =%d in refco.c \n", errno);

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exit(1);

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}

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#endif

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}

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