ICEBEAR Metadata Descriptions
Metadata parameters of the ICEBEAR hdf5 files are listed here with descriptions of each parameter.
| Attribute Name | Description |
|---|---|
| Processing Attributes (Level 1) | |
| decimation_rate | number of receiver samples averaged together |
| time_resolution | number of seconds per sample |
| coherent_integration_time | integration time in seconds |
| incoherent_averages | number of samples averaged over |
| number_ranges | total number of ranges |
| range_resolution | resolution of range gates in km |
| timestamp_corr | Correction applied to timestamps |
| clutter_gates | range of gates used to determine clutter noise floor |
| code_length | number of symbols in the transmitted code |
| snr_cutoff_db | SNR lower threshold |
| spectra_descriptors | Descriptions for each antenna spectra |
| xspectra_descriptors | Descriptions of each cross-correlation |
| data | |
| data/{time}/time | [hour, minute, millisecond] data time stamp |
| data/{time}/spectra | Spectra values for each antenna |
| data/{time}/spectra_variance | Variance of the spectra values |
| data/{time}/xspectra | Cross-spectra values for each antenna pair |
| data/{time}/xspectra_variance | Varaiance of the cross-spectra values |
| data/{time}/avg_spectra_noise | Average noise in the spectra measurements |
| data/{time}/data_flag | flag indicating data above the snr_cutoff exists at this timestamp |
| If data flag is true | |
| data/{time}/doppler_shift | Target Doppler shift in Hz |
| data/{time}/snr_db | Target signal strength in dB |
| data/{time}/rf_distance | Distance from the transmitter to target to receiver in kilometers |
| data/{time}/spectra_clutter_corr | Clutter correction for spectra values |
| data/{time}/spectra_noise | Spectra noise value determined by the median spectra before cutoff |
| data/{time}/xspectra_clutter_corr | Clutter correction for cross-spectra values |
| data/{time}/xspectra_noise | Cross spectra noise value determined by the median cross-spectra before cutoff |
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