140-GHZ SCATTEROMETER SYSTEM AND MEASUREMENTS OF TERRAIN

被引：2
|
作者：
HADDOCK, TF [1 ]
ULABY, FT [1 ]
机构：
[1] UNIV MICHIGAN,DEPT ELECT ENGN & COMP SCI,ANN ARBOR,MI 48109
来源：
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 1990年 / 28卷 / 04期
关键词：
D O I：
10.1109/TGRS.1990.572928
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The goal of the University of Michigan millimeter-wave radar program is to characterize terrain scattering at 35, 94, and 140 GHz. The 140-GHz channel of a truck-mounted scatterometer system has recently been added to give the full desired operating capability. Two injection-locked 45.33-GHz Gunn oscillators use triplers to supply the up- and down-converters. Full polarization capability is obtained through the use of rotatable quarter-wave plates. Real-time signal processing and data reduction takes place in an HP 8510A automatic network analyzer on the truck-mounted platform. Sample measurements of millimeter-wave radar backscattering from vegetation and snow are given. © 1990 IEEE
引用
收藏
页码：492 / 499
页数：8
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