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Avoid potential division by zero

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This commit is contained in:
Carles Fernandez
2025-08-10 20:12:19 +02:00
parent 0b5dfb60bf
commit 7d919de008
3 changed files with 4 additions and 7 deletions
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2
src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking.cc
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@@ -1223,7 +1223,7 @@ void dll_pll_veml_tracking::update_tracking_vars()
} }
tmp_cp1 /= static_cast<double>(d_trk_parameters.smoother_length); tmp_cp1 /= static_cast<double>(d_trk_parameters.smoother_length);
tmp_cp2 /= static_cast<double>(d_trk_parameters.smoother_length); tmp_cp2 /= static_cast<double>(d_trk_parameters.smoother_length);
d_carrier_phase_rate_step_rad = (tmp_cp2 - tmp_cp1) / tmp_samples; d_carrier_phase_rate_step_rad = (tmp_samples != 0) ? (tmp_cp2 - tmp_cp1) / tmp_samples : 0.0;
} }
} }
// std::cout << d_carrier_phase_rate_step_rad * d_trk_parameters.fs_in * d_trk_parameters.fs_in / TWO_PI << '\n'; // std::cout << d_carrier_phase_rate_step_rad * d_trk_parameters.fs_in * d_trk_parameters.fs_in / TWO_PI << '\n';

2
src/algorithms/tracking/gnuradio_blocks/dll_pll_veml_tracking_fpga.cc
View File

@@ -846,7 +846,7 @@ void dll_pll_veml_tracking_fpga::update_tracking_vars()
} }
tmp_cp1 /= static_cast<double>(d_trk_parameters.smoother_length); tmp_cp1 /= static_cast<double>(d_trk_parameters.smoother_length);
tmp_cp2 /= static_cast<double>(d_trk_parameters.smoother_length); tmp_cp2 /= static_cast<double>(d_trk_parameters.smoother_length);
d_carrier_phase_rate_step_rad = (tmp_cp2 - tmp_cp1) / tmp_samples; d_carrier_phase_rate_step_rad = (tmp_samples != 0) ? (tmp_cp2 - tmp_cp1) / tmp_samples : 0.0;
} }
} }
// std::cout << d_carrier_phase_rate_step_rad * d_trk_parameters.fs_in * d_trk_parameters.fs_in / TWO_PI << '\n'; // std::cout << d_carrier_phase_rate_step_rad * d_trk_parameters.fs_in * d_trk_parameters.fs_in / TWO_PI << '\n';

7
src/algorithms/tracking/gnuradio_blocks/kf_tracking.cc
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@@ -1285,10 +1285,7 @@ void kf_tracking::update_tracking_vars()
} }
tmp_cp1 /= static_cast<double>(d_trk_parameters.smoother_length); tmp_cp1 /= static_cast<double>(d_trk_parameters.smoother_length);
tmp_cp2 /= static_cast<double>(d_trk_parameters.smoother_length); tmp_cp2 /= static_cast<double>(d_trk_parameters.smoother_length);
if (tmp_samples >= 1.0) d_carrier_phase_rate_step_rad = (tmp_samples != 0) ? (tmp_cp2 - tmp_cp1) / tmp_samples : 0.0;
{
d_carrier_phase_rate_step_rad = (tmp_cp2 - tmp_cp1) / tmp_samples;
}
d_x_old_old(3) = d_carrier_phase_rate_step_rad * d_trk_parameters.fs_in / TWO_PI; d_x_old_old(3) = d_carrier_phase_rate_step_rad * d_trk_parameters.fs_in / TWO_PI;
} }
} }
@@ -1320,7 +1317,7 @@ void kf_tracking::update_tracking_vars()
} }
tmp_cp1 /= static_cast<double>(d_trk_parameters.smoother_length); tmp_cp1 /= static_cast<double>(d_trk_parameters.smoother_length);
tmp_cp2 /= static_cast<double>(d_trk_parameters.smoother_length); tmp_cp2 /= static_cast<double>(d_trk_parameters.smoother_length);
d_code_phase_rate_step_chips = (tmp_cp2 - tmp_cp1) / tmp_samples; d_code_phase_rate_step_chips = (tmp_samples != 0) ? (tmp_cp2 - tmp_cp1) / tmp_samples : 0.0;
} }
} }