| タイトル | A digital signal processing system for coherent laser radar |
| 著者（英） | Jones, William D.; Hampton, Diana M.; Rothermel, Jeffry |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 1991-01-01 |
| 言語 | eng |
| 内容記述 | A data processing system for use with continuous-wave lidar is described in terms of its configuration and performance during the second survey mission of NASA'a Global Backscatter Experiment. The system is designed to estimate a complete lidar spectrum in real time, record the data from two lidars, and monitor variables related to the lidar operating environment. The PC-based system includes a transient capture board, a digital-signal processing (DSP) board, and a low-speed data-acquisition board. Both unprocessed and processed lidar spectrum data are monitored in real time, and the results are compared to those of a previous non-DSP-based system. Because the DSP-based system is digital it is slower than the surface-acoustic-wave signal processor and collects 2500 spectra/s. However, the DSP-based system provides complete data sets at two wavelengths from the continuous-wave lidars. |
| NASA分類 | LASERS AND MASERS |
| レポートNO | 92A34684
TABES PAPER 91-279 |
| 権利 | Copyright |
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