Display Earth remote sensing Swath Coverage for Windows
Off-line data searching tools （数据搜索） http://earth.esa.int/descw/ Earthnet OnLine Interactive On-line data searching and ordering tools （数据搜索和预） 订 http://eoli.esa.int/
第四章 SAR Platform and Data Acquisition (合成孔径雷达平台与数 据获取)
SAR Platforms and Sensors（SAR 平台和传感器）
Components of a SAR System （系统组分）

SAR platform（平台） SAR sensor（传感器） Ground receiving station （地面接收站） SAR processor（处理器）
COSMO-Skymed
COSMO-Skymed
扫描
条带
聚束
COSMO-Skymed
COSMO-Skymed
TerraSAR



Developed by Germany （德国） TerraSAR X launched in 2007 TerraSAR L launched in 2008 Resolutions: 1 – 30 m Swaths: 10 – 200 km Left and right looking antenna
COSMO-SkyMed




Developed by Italian Space Agency (ASI)（意 大利空间局） Four X-band satellites to be launched in 2007, 2008 and 2009（4颗卫 星，构成星座配置） Finest Resolution: 1 m Revisit time: 12 h at Equator and 8 h in Europe Left and right looking antenna
Famous SAR Imaging Systems (I) （著名的SAR系统）
Seasat Country Launch year Band Polarization Incident angle Resolution Swath Repeat cycle (days) USA 1978 L HH 23 25×25 100 17, 3 SIR-A USA 1981 L HH 50 40×40 50 N/A SIR-B USA 1984 L HH 15-64 25×17-58 10-60 N/A Almaz SIR-C/X SAR ERS-1 USSR 1991 S HH 30-60 1530×15 20-45 N/A USA 1994 L,C,X VV 15-50 10-26×30 15-60 N/A ESA 1991 C VV 23 20×4 100 3, 35, 176 JERS-1 Japan 1992 L HH 38 18×18 75 44


Application（申请）

Data acquisition
Data acquisition
Data acquisition
Data acquisition
Data acquisition
Data search and order（数据搜索和预订）

DESCW（离线工具）

Airplane （机载）

e.g., TopSAR e.g., ERS-1/2, JERS, Radarsat, Envisat, ALOS, TerraSAR, COSMO Sky-Med e.g., SIR-A, SIR-B, SIR-C/X-SAR, SRTM

Satellite （星载）
Multi polar. Multi polar. Multi polar. 15-45 20×4 60-405 35 8-60 10×10 30-350 46 10-60 3×3 10-500 24
After Zebker
Seasat
ERS-1/-2
(after ESA)
ERS-1/-2
(after ESA)
ALOS
(after JAXA)
(Comparison with JERS-1 image)
Radarsat II


ቤተ መጻሕፍቲ ባይዱ

A continuation of Radarsat I C Band Ultra-fine resolution: 3 m Left and right looking antenna（可以左右视） launched in 2007 加拿大
Famous SAR Imaging System (II) （著名的SAR系统）
ERS-2 Country Launch year Band Polarization Incident angle Resolution Swath Repeat cycle (days) ESA 1995 C VV 23 20×4 100 35 Radarsat-1 Canada 1995 C HH 10-59 10×9 50-500 24 Envisat ESA 2003 C ALOS Japan 01/2006 L Radarsat-2 Canada 12/2007 C
TerraSAR
TerraSAR
TerraSAR
TerraSAR
SAR data acquisition（SAR数据获 取）
Data acquisition（数据获取）

Purchase（购买）

Ground stations （地面站） Global agencies/distributors, e.g., Eurimage Inc.() （全球代理机构） Local agencies/distributors （当地代理机构） For research only Free of charge Announce of Opportunities （AO） ESA, JAXA, ASI, DLR, CSA,….


EOLI（在线工具）


DESCW(离线搜索实例)

Software and interface DESCW Shanghai（上海）

N 31.14, E121.29 N 28.12, E 112.59 （长沙）

DESCW Changsha

~The End~
Thank you!
Radarsat-1
JERS
SRTM
SRTM
SRTM
60 m
Radar 1
Radar 2
From /srtm/
ENVISAT
(after ESA)
ENVISAT
(after ESA)
ENVISAT
From http://www.esa.int
link
Imaging radar sensor
Ra ng e
dow n

im z A
h ut
Scene
Footprint of the fan-shaped radar beam SAR processor Ground station
High-resolution SAR images
SAR Platform Classification （平台分类）


Shuttle（航天飞机）

Important Events of SAR Development （发展里程碑）
Year
1951 1953 1962 1972 1978 1981 1984 1989 1990-
Event
Landmark of development of imaging radar, i.e., birth of concept of “synthetic aperture radar” First experimental validation of SAR concept L-band (24 cm wavelength) SAR sensor Apollo Lunar Sounder experiment SEASAT-A experiment, L-band SAR
Inventor/Affiliation
Carl Wiley, Goodyear Aircraft Corporation, US University of Illinois, US JPL JPL NASA and JPL
SIR-A mission, Shuttle Imaging Radar, L-band SAR NASA and JPL SIR-B mission, with L-band SAR Magellan mission (Satellite SAR system to Venus ) A flush of experiment, commercial and civil SARs NASA and JPL NASA and JPL Public agencies and private sectors