Changeset 3786

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Timestamp:
05/11/07 14:46:14 (6 years ago)
Author:
jgaeddert
Message:

adding test to SymbolSyncPoly; passes with r3785 changeset to SigProc?

Location:
experimental/components/SymbolSyncPoly
Files:
1 added
4 modified

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  • experimental/components/SymbolSyncPoly

    • Property svn:ignore

      •  

        old new  
        44autotest.cpp 
        55aclocal.m4 
         6docs 
        67install-sh 
        78missing 

  • experimental/components/SymbolSyncPoly/.ignore

    r3736 r3786  
    44autotest.cpp 
    55aclocal.m4 
     6docs 
    67install-sh 
    78missing 

  • experimental/components/SymbolSyncPoly/autotest_sources/SymbolSyncPoly_testsuite.h

    r3741 r3786  
    88#include "msg_i_rrc_qpsk_N512_dT0_dF0_k4_m4_b025_Npfb32.h" 
    99#include "msg_q_rrc_qpsk_N512_dT0_dF0_k4_m4_b025_Npfb32.h" 
     10 
     11#include "test_02.h" 
    1012 
    1113// 
    … …  
    9092 
    9193    ///\Basic test case for SynchronizeAndDecimate. No symbol offsets or timing errors 
    92     void testBasicSynchronization() 
     94    void xtestBasicSynchronization() 
    9395    { 
    9496        SymbolSyncPolyDSP symbolSync; 
    95         ///The following input buffers and expected results are defined in header files 
    96             ///float nominal_test_vector_I, nominal_test_vector_Q; 
    97         ///short nominal_expected_results_I, nominal_expected_results_Q; 
    98  
    99         //float to short conversion 
    100         //float max_float_value = 3;   //double check this value later if signal is noisy 
    101         short max_short_value = 10000;//32767; 
    102         //float tmp_float;  
    103         unsigned int N_in = 512; //This number must match with the lenght of the input buffer 
     97        ///The following input buffers and expected results are defined in header files 
     98        ///float nominal_test_vector_I, nominal_test_vector_Q; 
     99        ///short nominal_expected_results_I, nominal_expected_results_Q; 
     100 
     101        //float to short conversion 
     102        //float max_float_value = 3;   //double check this value later if signal is noisy 
     103        short max_short_value = 10000;//32767; 
     104        //float tmp_float;  
     105        unsigned int N_in = 512; //This number must match with the lenght of the input buffer 
    104106        short* nominal_test_vector_I_short = new short[N_in]; 
    105107        short* nominal_test_vector_Q_short = new short[N_in]; 
    106         for(unsigned int i =0 ; i < N_in; i++){ 
    107                 //tmp_float = nominal_test_vector_I[i];// / max_float_value; //gives a value between 0 and 1 
     108        for(unsigned int i =0 ; i < N_in; i++){ 
     109            //tmp_float = nominal_test_vector_I[i];// / max_float_value; //gives a value between 0 and 1 
    108110            nominal_test_vector_I_short[i] = (short) (nominal_test_vector_I[i] * max_short_value); 
    109111 
    … …  
    112114        } 
    113115 
    114         ///Init variables shall match the values used in MATLAB to get the test vectors and 
     116        ///Init variables shall match the values used in MATLAB to get the test vectors and 
    115117        ///expected result 
    116             char type[] = "rrcos";  ///< filter type 
    117         unsigned int k = 2;             ///< samples per symbol 
    118         unsigned int m = 4;             ///< symbol delay 
    119         float beta = .25;               ///< rolloff factor 
    120         unsigned int Npfb = 32; ///< polyphse filter bank size 
    121  
    122         unsigned int N_out = N_in/k + 2; //Need some buffer for mismatched samples per symbol 
    123         short* systemOutputI = new short[N_out]; 
    124         short* systemOutputQ = new short[N_out]; 
    125  
    126  
    127         symbolSync.ConfigureFilterBank(type, k, m, beta, Npfb); 
    128  
    129             //send test data 
    130             symbolSync.SynchronizeAndDecimate(  nominal_test_vector_I_short, 
     118        char type[] = "rrcos";  ///< filter type 
     119        unsigned int k = 2;        ///< samples per symbol 
     120        unsigned int m = 4;        ///< symbol delay 
     121        float beta = .25;        ///< rolloff factor 
     122        unsigned int Npfb = 32;    ///< polyphse filter bank size 
     123 
     124        unsigned int N_out = N_in/k + 2; //Need some buffer for mismatched samples per symbol 
     125        short* systemOutputI = new short[N_out]; 
     126        short* systemOutputQ = new short[N_out]; 
     127 
     128 
     129        symbolSync.ConfigureFilterBank(type, k, m, beta, Npfb); 
     130 
     131        //send test data 
     132        symbolSync.SynchronizeAndDecimate(  nominal_test_vector_I_short, 
    131133                                            nominal_test_vector_Q_short, 
    132134                                            N_in, 
    … …  
    143145        } 
    144146 
    145             //verify 
    146             TS_ASSERT_SAME_DATA(&systemOutputI[m], 
     147        //verify 
     148        TS_ASSERT_SAME_DATA(&systemOutputI[m], 
    147149                            nominal_expected_results_I, 
    148150                            (N_out - m)*sizeof(short)); 
    149151 
    150             TS_ASSERT_SAME_DATA(&systemOutputQ[m], 
     152        TS_ASSERT_SAME_DATA(&systemOutputQ[m], 
    151153                            nominal_expected_results_Q, 
    152154                            (N_out - m)*sizeof(short)); 
    … …  
    158160    } 
    159161 
     162 
     163    // test_02 
     164    void testSymbolSynchronizationTimingOffset() 
     165    { 
     166        std::cout << std::endl << "testSymbolSynchronizationTimingOffset" << std::endl; 
     167        SymbolSyncPolyDSP symbolSync; 
     168 
     169        // Init variables shall match the values used in MATLAB to get the test vectors and 
     170        // expected result 
     171        unsigned int Npfb_02 = 32; 
     172        unsigned int N_out_02 = N_in_02; 
     173 
     174        //Need some buffer for mismatched samples per symbol 
     175        short* I_out_02 = new short[N_out_02]; 
     176        short* Q_out_02 = new short[N_out_02]; 
     177        memset( I_out_02, 0, N_out_02*sizeof(short) ); 
     178        memset( Q_out_02, 0, N_out_02*sizeof(short) ); 
     179 
     180        symbolSync.ConfigureFilterBank(type_02, k_02, m_02, beta_02, Npfb_02); 
     181 
     182        //send test data 
     183        symbolSync.SynchronizeAndDecimate( 
     184            I_in_02, 
     185            Q_in_02, 
     186            N_in_02, 
     187            I_out_02, 
     188            Q_out_02, 
     189            N_out_02); 
     190 
     191        //hard decision to see if we recovered the message correctly 
     192        unsigned int num_correct_symbols(0); 
     193        short t_min = short(Ac_02 / sqrtf(2) * 0.5);      // minimum threshold 
     194        short t_max = short(Ac_02 / sqrtf(2) * 1.5);    // maximum threshold 
     195        for(unsigned int i = 0; i<N_out_02; i++){ 
     196            if ( abs(I_out_02[i])>t_min && abs(I_out_02[i])<t_max && 
     197                 abs(Q_out_02[i])>t_min && abs(Q_out_02[i])<t_max ) 
     198                num_correct_symbols++; 
     199            //std::cout << "  " << I_out_02[i] << "  " << Q_out_02[i] << std::endl; 
     200        } 
     201 
     202        std::cout << "num_correct_symbols : " << num_correct_symbols << std::endl; 
     203 
     204        TS_ASSERT(num_correct_symbols > 150); 
     205 
     206        delete [] I_out_02; 
     207        delete [] Q_out_02; 
     208    } 
     209 
    160210}; 
    161211 

  • experimental/components/SymbolSyncPoly/src/SymbolSyncPolyDSP.h

    r3741 r3786  
    106106    void AdvanceTimingLoopFilter() { 
    107107        q_hat = beta*q_hat - alpha*(q_hat-q); 
    108         b_soft = b_soft - q_hat; 
     108        b_soft = b_soft - q_hat*float(Npfb); 
    109109    } 
    110110