The multi-frequency sodar with high temporal resolution
The new sodar LATAN-3M with a frequency-coded sounding signal was developed, manufactured, and successfully tested at the Obukhov Institute for Atmospheric Physics. The sodar emits a sequence of sounding pulses at different frequencies and then averages the Doppler spectra for each range gate over t...
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| Format: | Article |
| Language: | English |
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Borntraeger
2009-05-01
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| Series: | Meteorologische Zeitschrift |
| Online Access: | http://dx.doi.org/10.1127/0941-2948/2009/0373 |
| Summary: | The new sodar LATAN-3M with a frequency-coded sounding signal was developed, manufactured, and successfully tested at the Obukhov Institute for Atmospheric Physics. The sodar emits a sequence of sounding pulses at different frequencies and then averages the Doppler spectra for each range gate over the ensemble of frequencies. The field tests have proved the significant advantages of a multi-frequency technique in comparison with a single-frequency one. The use of eight different frequencies halves the minimal acceptable signal to noise ratio compared to single-frequency sounding. Moreover, the multi-frequency mode improves the accuracy of instantaneous values of measured parameters and significantly increases the reliability in recognizing noisy echo-signals. |
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| ISSN: | 0941-2948 |