出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/06/22 00:51 UTC 版)
A radar scatterometer is designed to determine the normalized radar cross section (sigma-0) of the surface. Scatterometers operate by transmitting a pulse of microwave energy towards the Earth's surface and measuring the reflected energy. A separate measurement of the noise-only power is made and subtracted from the signal+noise measurement to determine the backscatter signal power. Sigma-0 is computed from the signal power measurement using the distributed target radar equation. Scatterometer instruments are very precisely calibrated in order to make accurate backscatter measurements.
| ・scatterometer | |
| ・ce36740 | |
| ・Guffey | |
| ・dormiens | |
| ・colluctatio | |
| ・tesl | |
| ・Src2 | |
| ・stransky reflex | |
| ・TROPIC | |
| ・VUTS |