Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-examples / python / channel-coding / fsm_utils.py

diff --git a/gnuradio-examples/python/channel-coding/fsm_utils.py b/gnuradio-examples/python/channel-coding/fsm_utils.py
deleted file mode 100755 (executable)
index c5968e8..0000000
--- a/gnuradio-examples/python/channel-coding/fsm_utils.py
+++ /dev/null
@@ -1,144 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2004 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.
-#
-
-
-import re
-import math
-import sys
-import operator
-
-
-
-
-######################################################################
-# Decimal to any base conversion.
-# Convert 'num' to a list of 'l' numbers representing 'num'
-# to base 'base' (most significant symbol first).
-######################################################################
-def dec2base(num,base,l):
-    s=range(l)
-    n=num
-    for i in range(l):
-        s[l-i-1]=n%base
-        n=int(n/base)
-    if n!=0:
-        print 'Number ', num, ' requires more than ', l, 'digits.'
-    return s
-
-
-######################################################################
-# Conversion from any base to decimal.
-# Convert a list 's' of symbols to a decimal number
-# (most significant symbol first)
-######################################################################
-def base2dec(s,base):
-    num=0
-    for i in range(len(s)):
-        num=num*base+s[i]
-    return num
-
-
-
-
-
-######################################################################
-# Automatically generate the lookup table that maps the FSM outputs
-# to channel inputs corresponding to a channel 'channel' and a modulation
-# 'mod'. Optional normalization of channel to unit energy.
-# This table is used by the 'metrics' block to translate
-# channel outputs to metrics for use with the Viterbi algorithm. 
-# Limitations: currently supports only one-dimensional modulations.
-######################################################################
-def make_isi_lookup(mod,channel,normalize):
-    dim=mod[0]
-    constellation = mod[1]
-
-    if normalize:
-        p = 0
-        for i in range(len(channel)):
-            p = p + channel[i]**2
-        for i in range(len(channel)):
-            channel[i] = channel[i]/math.sqrt(p)
-
-    lookup=range(len(constellation)**len(channel))
-    for o in range(len(constellation)**len(channel)):
-        ss=dec2base(o,len(constellation),len(channel))
-        ll=0
-        for i in range(len(channel)):
-            ll=ll+constellation[ss[i]]*channel[i]
-        lookup[o]=ll
-    return (1,lookup)
-
-
-    
-
-
-
-######################################################################
-# A list of common modulations.
-# Format: (dimensionality,constellation)
-######################################################################
-pam2 = (1,[-1, 1])
-pam4 = (1,[-3, -1, 3, 1])              # includes Gray mapping
-pam8 = (1,[-7, -5, -3, -1, 1, 3, 5, 7])
-
-psk4=(2,[1, 0, \
-         0, 1, \
-         0, -1,\
-        -1, 0])                                # includes Gray mapping
-psk8=(2,[math.cos(2*math.pi*0/8), math.sin(2*math.pi*0/8),  \
-         math.cos(2*math.pi*1/8), math.sin(2*math.pi*1/8),  \
-         math.cos(2*math.pi*2/8), math.sin(2*math.pi*2/8),  \
-         math.cos(2*math.pi*3/8), math.sin(2*math.pi*3/8),  \
-         math.cos(2*math.pi*4/8), math.sin(2*math.pi*4/8),  \
-         math.cos(2*math.pi*5/8), math.sin(2*math.pi*5/8),  \
-         math.cos(2*math.pi*6/8), math.sin(2*math.pi*6/8),  \
-         math.cos(2*math.pi*7/8), math.sin(2*math.pi*7/8)])
-
-orth2 = (2,[1, 0, \
-            0, 1])
-orth4=(4,[1, 0, 0, 0, \
-          0, 1, 0, 0, \
-          0, 0, 1, 0, \
-          0, 0, 0, 1])
-
-######################################################################
-# A list of channels to be tested
-######################################################################
-
-# C test channel (J. Proakis, Digital Communications, McGraw-Hill Inc., 2001)
-c_channel = [0.227, 0.460, 0.688, 0.460, 0.227]
-
-
-
-
-
-
-
-
-
-
-if __name__ == '__main__':
-    make_fsm_bin_cc_ff (1,2,[[7,5]])
-    print "----------\n"
-    make_fsm_bin_cc_ff (2,3,[[1,0,2],[0,1,6]])
-