| タイトル | The effect of vegetation type, microrelief, and incidence angle on radar backscatter |
| 著者（英） | Jackson, T. J.; Oneill, P. E.; Schmugge, T. J.; Owe, M. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1985-06-15 |
| 言語 | eng |
| 内容記述 | The NASA/JPL Synthetic Aperture Radar (SAR) was flown over a 20 x 110 km test site in the Texas High Plains regions north of Lubbock during February/March 1984. The effect of incidence angle was investigated by comparing the pixel values of the calibrated and uncalibrated images. Ten-pixel-wide transects along the entire azimuth were averaged in each of the two scenes, and plotted against the calculated incidence angle of the center of each range increment. It is evident from the graphs that both the magnitudes and patterns exhibited by the corresponding transect means of the two images are highly dissimilar. For each of the cross-poles, the uncalibrated image displayed very distinct and systematic positive trends through the entire range of incidence angles. The two like-poles, however, exhibited relatively constant returns. In the calibrated image, the cross-poles exhibited a constant return, while the like-poles demonstrated a strong negative trend across the range of look-angles, as might be expected. |
| NASA分類 | EARTH RESOURCES AND REMOTE SENSING |
| レポートNO | 86N10619 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/529308 |
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