README change

1 files changed, 46 insertions, 0 deletions

diff --git a/gnuradio-core/src/utils/read_xambi.m b/gnuradio-core/src/utils/read_xambi.m
new file mode 100644
index 000000000..5adb94264
--- /dev/null
+++ b/gnuradio-core/src/utils/read_xambi.m
@@ -0,0 +1,46 @@
+#
+# Copyright 2001,2005 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+function v = read_xambi (filename)
+
+  ## usage: read_xambi (filename)
+  ##
+  ## read binary cross-ambiguity data from radar tools.
+  ## The file has an 8 float header, the first word of which specifies
+  ## the number of doppler bins.
+  ## returns a matrix
+
+  if ((m = nargchk (1,1,nargin)))
+    usage (m);
+  endif;
+
+  f = fopen (filename, "rb");
+  if (f < 0)
+    v = 0;
+  else
+    header = fread(f, 8, "float");
+    ndoppler_bins = header(1)
+    min_doppler = header(2)
+    max_doppler = header(3)
+    v = fread (f, [ndoppler_bins, Inf], "float");
+    fclose (f);
+  endif;
+endfunction;