From 7ebd609b4f4139f4dac8627ac00678de89ef4575 Mon Sep 17 00:00:00 2001
From: Andreas Bogk <andreas@pt141.(none)>
Date: Thu, 15 Jan 2009 17:17:29 +0100
Subject: Viterbi generator by Piotr Krysik.

---
 viterbi_generator/tests/test_check.m | 56 ++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100755 viterbi_generator/tests/test_check.m

(limited to 'viterbi_generator/tests/test_check.m')

diff --git a/viterbi_generator/tests/test_check.m b/viterbi_generator/tests/test_check.m
new file mode 100755
index 0000000..a08c801
--- /dev/null
+++ b/viterbi_generator/tests/test_check.m
@@ -0,0 +1,56 @@
+#!/usr/bin/octave --silent
+addpath("./tests/utils");
+addpath("./utils");
+addpath("./utils/lower_utils");
+addpath("./utils/lower_utils/lower_utils");
+
+arg_list=argv();
+Lh=sscanf(arg_list{1}, "%d", "C");
+PATHS_NUM=2**(Lh);
+load tests/data/rhh.dat;
+load tests/data/normal_burst.dat;
+load test_result;
+
+[r BURST_SIZE] = size(normal_burst);
+
+[ SYMBOLS , PREVIOUS , NEXT , START , STOPS ] = viterbi_init(Lh);
+
+path_metrics_test_result = path_metrics_test_result.';
+[rx_burst METRIC] = viterbi_detector(SYMBOLS,NEXT,PREVIOUS,START,STOPS,normal_burst,Rhh);
+[r,burst_size] = size(METRIC);
+sum_check=0; %number of errors
+
+%find branch metrics computation errors number (errors bigger than 1000)
+for i=1:2:burst_size,
+  check_matrix = (abs(METRIC(1:2:r,i)-path_metrics_test_result(:,i)));
+  suma=sum( check_matrix > ones(PATHS_NUM,1)*1000);
+  sum_check = sum_check + suma;
+  
+  check_matrix = (abs(METRIC(2:2:r,i+1)-path_metrics_test_result(:,i+1)));
+  suma=sum( check_matrix > ones(PATHS_NUM,1)*1000);
+  sum_check = sum_check + suma;
+end
+
+%compute expected number of errors (errors from the beginning)
+q=2;
+expected_result=0;
+while(q<PATHS_NUM),
+  expected_result=expected_result + (PATHS_NUM-q);
+  q=q*2;
+end
+
+%check result
+if(sum_check == expected_result),
+  printf("Path metrics test: ok\n");
+else
+  sum_check
+  printf("Path metrics test: failed\n");  
+end
+
+%check output of the viterbi_detector function
+if(sum(output==rx_burst) == BURST_SIZE),
+  printf("Final result test: ok\n");
+else
+  printf("Final result test: failed\n");  
+end
+
-- 
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