An Efficient Algorithm to the Simulation of Delay-Doppler Maps of Reflected Global Navigation Satellite System Signals

被引：85
作者：
Fernando Marchan-Hernandez, Juan [1 ]
Camps, Adriano [1 ]
Rodriguez-Alvarez, Nereida [1 ]
Valencia, Enric [1 ]
Bosch-Lluis, Xavier [1 ]
Ramos-Perez, Isaac [1 ]
机构：
[1] Univ Politecn Cataluna, Remote Sensing Lab, Dept Signal Theory & Commun, ES-08034 Barcelona, Spain
来源：
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2009年 / 47卷 / 08期
关键词：
Delay-Doppler map (DDM); reflected Global Navigation Satellite System (GNSS-R); reflectometer; GPS SIGNALS; OCEAN; SURFACE;
D O I：
10.1109/TGRS.2009.2014465
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 new and efficient algorithm to compute delay-Doppler maps is presented. It improves by more than an order of magnitude the required computation time and memory resources. This approach is based on the derivation of explicit expressions of the space coordinates as a function of the delay offset and Doppler shift. Using this technique, the limitation posed by the number of sampling points of the observed surface is drastically attenuated, and a wide range of scenarios from low- to medium-height airborne-to-spaceborne scenarios can now be simulated with standard desktop computers.
引用
收藏
页码：2733 / 2740
页数：8
相关论文
共 16 条
[1]  
[Anonymous], 1990, Radar Handbook
[2]   MEASUREMENT OF THE ROUGHNESS OF THE SEA SURFACE FROM PHOTOGRAPHS OF THE SUNS GLITTER [J].
COX, C ;
MUNK, W .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1954, 44 (11) :838-850
[3]   Delay-Doppler analysis of bistatically reflected signals from the ocean surface: Theory and application [J].
Elfouhaily, T ;
Thompson, DR ;
Linstrom, L .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2002, 40 (03) :560-573
[4]   The Eddy Experiment: GNSS-R speculometry for directional sea-roughness retrieval from low altitude aircraft [J].
Germain, O ;
Ruffini, G ;
Soulat, F ;
Caparrini, M ;
Chapron, B ;
Silvestrin, P .
GEOPHYSICAL RESEARCH LETTERS, 2004, 31 (21) :L213071-4
[5]   Detection and processing of bistatically reflected GPS signals from low earth orbit for the purpose of ocean remote sensing [J].
Gleason, S ;
Hodgart, S ;
Sun, YP ;
Gommenginger, C ;
Mackin, S ;
Adjrad, M ;
Unwin, M .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2005, 43 (06) :1229-1241
[6]   Calibration of reflected GPS for tropical storm wind speed retrievals [J].
Katzberg, Stephen J. ;
Torres, Omar ;
Ganoe, George .
GEOPHYSICAL RESEARCH LETTERS, 2006, 33 (18)
[7]  
Komjathy Attila., 2000, Geoscience and Remote Sensing Symposium, P2855
[8]   5-cm-precision aircraft ocean altimetry using GPS reflections [J].
Lowe, ST ;
Zuffada, C ;
Chao, Y ;
Kroger, P ;
Young, LE ;
LaBrecque, JL .
GEOPHYSICAL RESEARCH LETTERS, 2002, 29 (10)
[9]   Correction of the Sea State Impact in the L-Band Brightness Temperature by Means of Delay-Doppler Maps of Global Navigation Satellite Signals Reflected Over the Sea Surface [J].
Marchan-Hernandez, Juan Fernando ;
Rodriguez-Alvarez, Nereida ;
Camps, Adriano ;
Bosch-Lluis, Xavier ;
Ramos-Perez, Isaac ;
Valencia, Enric .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2008, 46 (10) :2914-2923
[10]  
MARTINEIRA M, 1993, ESA J-EUR SPACE AGEN, V17, P331
12