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Avoid division by 0 for low noise scenario

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This commit is contained in:
Roberto Louro Magueta
2022-08-26 11:41:23 +01:00
parent 4e434ecf45
commit e026e20186
1 changed files with 2 additions and 2 deletions
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openair1/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
+2 -2
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@@ -1174,8 +1174,8 @@ int nr_srs_channel_estimation(const PHY_VARS_gNB *gNB,
}
}
*noise_power = calc_power(noise_real,frame_parms->nb_antennas_rx*nr_srs_info->sc_list_length)
+ calc_power(noise_imag,frame_parms->nb_antennas_rx*nr_srs_info->sc_list_length);
*noise_power = max(calc_power(noise_real,frame_parms->nb_antennas_rx*nr_srs_info->sc_list_length)
+ calc_power(noise_imag,frame_parms->nb_antennas_rx*nr_srs_info->sc_list_length), 1);
*snr = dB_fixed((int32_t)((*signal_power<<factor_bits)/(*noise_power))) - factor_dB;