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Adjusting GPS L2CM TOW in telemetry decoder. Some magic number in TOW symbol has still to be further investigated

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Javier Arribas
2017-03-31 12:45:46 +02:00
parent e0b0605545
commit 785d0d935d
1 changed files with 2 additions and 2 deletions
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4
src/algorithms/telemetry_decoder/gnuradio_blocks/gps_l2c_telemetry_decoder_cc.cc
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@@ -149,12 +149,12 @@ int gps_l2c_telemetry_decoder_cc::general_work (int noutput_items __attribute__(
//update TOW at the preamble instant //update TOW at the preamble instant
d_TOW_at_Preamble=(int)msg.tow; d_TOW_at_Preamble=(int)msg.tow;
std::cout<<"["<<(int)msg.prn<<"] deco delay: "<<delay<<"[symbols]"<<std::endl; //std::cout<<"["<<(int)msg.prn<<"] deco delay: "<<delay<<"[symbols]"<<std::endl;
//* The time of the last input symbol can be computed from the message ToW and //* The time of the last input symbol can be computed from the message ToW and
//* delay by the formulae: //* delay by the formulae:
//* \code //* \code
//* symbolTime_ms = msg->tow * 6000 + *pdelay * 20 //* symbolTime_ms = msg->tow * 6000 + *pdelay * 20
d_TOW_at_current_symbol=((double)msg.tow) * 6.0 + ((double)delay) * GPS_L2_M_PERIOD +12*GPS_L2_M_PERIOD; d_TOW_at_current_symbol=((double)msg.tow) * 6.0 + ((double)delay) * GPS_L2_M_PERIOD +11.5*GPS_L2_M_PERIOD;
d_flag_valid_word=true; d_flag_valid_word=true;
} }
else else