We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byJoslyn Denmon
Modified over 2 years ago
1 © ACRI-ST, all rights reserved – 2012 Isotropic RFI detection Jean-Luc Vergely (ACRI-ST) Claire Henocq (ACRI-ST) Philippe Waldteufel (LATMOS)
2 © ACRI-ST, all rights reserved – 2012 Introduction Principal aims of this study : Looking for strong isotropic source -> RFI St1, A3 and A4 analysis.
3 © ACRI-ST, all rights reserved – 2012 Data set Data set to be used 2010 and 2011 reprocessed data. Philosophy: -> use L1c browse products for global analysis: source detection on ocean and land targets.
4 © ACRI-ST, all rights reserved – 2012 Data set Land/ocean L1c browse products L1c browse products over two years (2010 and 2011) : - four polarizations (in FP mode) at the same geometry - TB at antenna level - TB at 42.5° incidence - TB errors Allow global analysis on 5 FOV zones Zone 1 Zone 2 Zone 3 Zone 4 Zone 5
5 © ACRI-ST, all rights reserved – 2012 Introduction St1,A3 or A4 emission Is the signal observed on descending and ascending orbits ? Is the signal isotropic? Is the signal variable or constant ? Is the signal spatially coherent ?
6 © ACRI-ST, all rights reserved – 2012 Isotropic source Detected in the 5 zones in ascending and descending -> good azimuth coverage. Normalization to be done because of using zones affected by different OTT correction. Applying a threshold. St1 and A4 For A3 : ascending and descending zone 3
7 © ACRI-ST, all rights reserved – 2012 St1 isotropic source Isotropic source detection
8 © ACRI-ST, all rights reserved – 2012 St1 isotropic source Isotropic source detection
9 © ACRI-ST, all rights reserved – 2012 St1 isotropic source
10 © ACRI-ST, all rights reserved – 2012 A4 isotropic sources Threshold of 3 K Only RFI …
11 © ACRI-ST, all rights reserved – 2012 A4 isotropic source Isotropic source detection
12 © ACRI-ST, all rights reserved – 2012 A3 asc/desc sources Threshold of 7 K
13 © ACRI-ST, all rights reserved – 2012 A3 isotropic source Isotropic source detection
14 © ACRI-ST, all rights reserved – 2012 Principal conclusions Looking for RFI from St1, A3 and A4 SMOS measurements: isotropic sources For RFI detection : do not use A4 (correlated with A3). Only few isotropic sources have been detected. Constant isotropic source for St1 could be RFI. Distinction between sources and Gibbs effect to be done. -> further works : play with different thresholds (adaptation of the threshold according to the target (ocean or land).
1 © ACRI-ST, all rights reserved – 2012 Galactic noise model adjustment Jean-Luc Vergely (ACRI-ST) Jacqueline Boutin (LOCEAN) Xiaobin Yin (LOCEAN)
EGU 2013, 8-12 April 2013, Vienna Session OS4.9 SMOS and Aquarius Inter-Comparison Over Oceans [and Land] Gary S.E. Lagerloef, Francois Cabot, Rajat Bindlish,
SMOS L2 Ocean Salinity Level 2 Ocean Salinity QWG #4 7-9 March 2011 ARGANS & L2OS ESL.
AN INITIAL LOOK AT THE IMPACT OF THE NEW ANTENNA LOSS MODEL Joe Tenerelli SMOS QUALITY WORKING GROUP #4 7-9 March 2011.
UPDATE ON BIAS TRENDS, DIRECT SUN CORRECTION, AND ROUGHNESS CORRECTION Joe Tenerelli May 10, 2011.
SMOS L2 Ocean Salinity Commissioning Plan, 07/05/2009 Level 2 Ocean Salinity Processor Commissioning Plan 7 May 2009 ARGANS ACRI-ST ICM-CSIC.
REVIEW OF OBSERVED BIAS TRENDS OVER THE OCEAN AND POTENTIAL IMPACT OF PROCESSOR EVOLUTION Joe & Nicolas IFREMER/CLS ESL Quality Working Group #5 May 30-31,
CP4O Progress meeting 1 - Frascati November WP 5000 – Impact Assessment S. Labroue, T. Moreau, P. Thibaut (CLS) N. Picot, F. Boy (CNES)
UPDATE ON SMOS LONG-TERM BIASES OVER THE OCEAN AND ROUGH SURFACE SCATTERING OF CELESTIAL SKY NOISE Joe Tenerelli SMOS L2OS Progress Meeting Arles, France,
SMOS L2 Ocean Salinity L1OP v620 border flag width 23 May 2014 ARGANS & L2OS ESL
SMOS L2 Ocean Salinity Level 2 Ocean Salinity L20S Tool Box Architecture & Release 27 June 2014 ARGANS & SMOS L2OS ESL.
Doc: IEEE /0360r0 Submission July 2004 K. Siwiak, TimeDerivative, Inc.Slide 1 Project: IEEE P Working Group for Wireless Personal Area Networks.
SMOS L2 Ocean Salinity Reprocessed constant calibration L1c OTT drift study 13 April 2011 ARGANS & L2OS ESL ascendingdescending.
1 Binary Signal Detection In MATLAB weve worked some with AWGN noise and the concept of bit error probability. Lets describe how this is measured.
12th EMS Annual Meeting & 9th European Conference on Applied Climatology (ECAC) Łódź, Poland, 10 – 14 September 2012 The estimation of cloudiness and incoming.
SADC Course in Statistics Basic Sampling Concepts (Session 02)
Chapter 5 Human Capital Copyright © 2010 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin.
Slide 3- 1 Copyright © 2010, 2007, 2004 Pearson Education, Inc. All Rights Reserved. Active Learning Lecture Slides For use with Classroom Response Systems.
Microwave - the SMOS Mission Prof. Bob Su prepared by Monday 29 June 2009, D1L3a.
©2011 1www.id-book.com Evaluation studies: From controlled to natural settings Chapter 14.
(Very) Preliminary Quality Assessment of Stratospheric AMSU Channels (Channels 9 – 14) Carl Mears Remote Sensing Systems.
PART 1: A Brief Comparison of Time- Latitude First Stokes Bias Structure in v505 and v620 PART 1: A Brief Comparison of Time- Latitude First Stokes Bias.
Lesson 8 Data Toss. Key Vocabulary Data: Factual information derived from scientific experiments Hypothesis A possible explanation for observations, facts,
SMOS L2 Ocean Salinity – Reprocessing Level 2 Ocean Salinity Reprocessing 17 September 2008.
1 Forecasting. 2 Should you carry an umbrella today? Part of the answer for you most likely depends on how much you care about getting wet! Assuming you.
DATA ANALYSIS 33 The amount of Omega 3 fish oil in capsules labeled 1,000 mg is measured for four manufacturers’ products yielding the following box plots.
Related to GEO: Lead of IGCP 565 Project "Developing the Global Geodetic Observing System into a Monitoring System for the Global Water Cycle" Water Resources:
Factors, Primes & Composite Numbers by Monica Yuskaitis.
Zhichang Guo, Paul A. Dirmeyer, Xiang Gao, and Mei Zhao Center for Ocean-Land-Atmosphere Studies, Calverton, Maryland, USA 6/2005 Improving the quality.
1 A gender and helping study with a different outcome.
© 2016 SlidePlayer.com Inc. All rights reserved.