A HELICOPTER-BORNE 8-CHANNEL RANGING SCATTEROMETER FOR REMOTE-SENSING .1. SYSTEM DESCRIPTION

被引：34

作者：

HALLIKAINEN, M

HYYPPA, J

HAAPANEN, J

TARES, T

AHOLA, P

PULLIAINEN, J

TOIKKA, M

机构：

[1] Helsinki University of Technology, Laboratory of Space Technology, Espoo SF-02150

[2] Helsinki University of Technology, Posti-Tele, Helsinki

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 1993年 / 31卷 / 01期

关键词：

RANGING SCATTEROMETER; FM-CW; REMOTE SENSING RADAR; FFT;

D O I：

10.1109/36.210457

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：

A helicopter-borne dual-frequency FM-CW scatterometer (HUTSCAT, Helsinki University of Technology SCATterometer) is described. The HUTSCAT measures the backscattering properties of a target with a range resolution of 65 cm. The real-time ranging capability is obtained by performing the Fast Fourier Transform (FFT) to the received time-domain signal. The measurement is made simultaneously at eight channels (VV, HH, HV, and VH modes of polarization at 5.4 GHz and 9.8 GHz). The scatterometer measures the radar return spectrum for eight channels in 16.6 ms which corresponds to an along-track distance of 0.33 m for the helicopter speed of 20 m/s. The radar system has been designed for remote sensing of forests, sea ice, and snow. The most potential application is the estimation of forest stand characteristics, to be discussed in Part II of this paper.

引用

页码：161 / 169

页数：9

共 11 条

[1]

BERNARD R, IEEE T GEOSCI

[2]

BRUNFELDT DR, 1982, ACTIVE REFLECTOR RAD

[3]

HARRIS FJ, 1978, P IEEE, V66, P51, DOI 10.1109/PROC.1978.10837

[4]

HYYPPA J, 1990, THESIS HELSINKI U TE

[5] DIPOLE-DISK ANTENNA WITH BEAM-FORMING RING [J].

KILDAL, PS ;

SKYTTEMYR, SA .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1982, 30 (04) :529-534

[6]

Skolnik M.I., 1981, INTRO RADAR SYSTEMS, P81

[7]

STILES WH, 1979, RSL3604 U KANS CTR R

[8]

Ulaby F., 1981, MICROWAVE REMOTE SEN, V1

[9]

Ulaby F T, 1986, MICROWAVE REMOTE SEN, VIII

[10]

1986, REMOTE SENSING, V24, P709

← 1 2 →