data quality evaluation & orbit identification from scatterometer

Data Quality Evaluation & Orbit Identification from SCATTEROMETER Data Products Using

Modern Computing Techniques

By:- Mudit J Dholakia (14MTPOS001)

Under the guidance of

Dr. C K Bhensdadia(Head, Department of Computer Engineering, DDU-Nadiad)

Mrs. Anuja Sharma (Scientist-’SF’, IAQD/SIPA/SPDCG/SAC/Ahmedabad)

Presentation Roadmap

1

Introduction

2

Problem

3

Literature Survey

4

Proposal

5Implementation

5

Results

Conclusion


1

Introduction

Introduction

• SCATTEROMETER Overview

• Data Reception

• Data Products

• Data Quality Evaluation

SCATTEROMETER Overview

Data Reception

• Data Product• Imaging Information• Non-Imaging Information

• Formats• HDF4/5• Network Common Data Form

(NetCDF) • High/Low Rate Picture Transmission

(H/LRPT)

• Measurements for Direct Ambiguity removal• Inner/Outer fore/aft

Data Products

A systematic collection of near real-time data for the purpose of Retrospective analysis.[21]

Data Quality Evaluation


1

Introduction

2

Problem

Problem

• Level wise difference

• Mathematical Model

• DQE

• Problem Statement &Objectives

Level wise difference

• Digital Geometry • Level-wise difference

281(HH)/282(VV)

61

03

32 samples

1 pixelDump wise

Level-0

Orbit-1

Orbit-2

Orbit-3

Orbit-4

Orbit wiseLevel-1

Mathematical Model

DQE

• Minimum

• Maximum

• Mean

• Histogram

• Pattern Identification

• Matching

• Digital Elevation Model

• Scattrometric Analysis

Problem Statement & Objectives

• No ways to relate level-0 and level-1B data

• Retrospective analytical capability is absent.

• A DQE for Level-1B and Level-2A has to be developed.

• Level-0 DQE has to be fine tuned.

• It is mandatory to find the correct segments of orbits.

• Without using the meta information an anomaly free approach has to be driven.

• There has to some ways to artificially evaluate the orbit identification task.


1

Introduction

2

Problem

3

LiteratureSurvey

Literature Survey

• QUICKSAT-DQE

• Voyager-DQE

• RAPIDSCAT-DQE

• RISAT-DQE

• RESOURSESAT-DQE

RISAT DQE

• Features• Parameter Evaluation

• Report Generation

• Alarm Generation

• Plots

• Parameter Extraction

• Missing Functions• Back-tracing

• Speedy Analysis

• Absence of modern computing approaches

• Lack of automation

[22]

QuickSAT DQE

• Features• Automated system

• Sensor Performance Evaluation

• Digital Quality Checks

• Report Generation

• Parameter Extraction and range analysis

• Point Marking

• Missing Functions• Tabular Comparison

• Relational Analysis

• Multispectral function analysis

• Near real-time evaluation

[6]

OSCAT & RAPIDSCAT DQE

• Features• Multispectral Analysis

• Display of SAR raw images

• Plots

• Retrospective Analysis

• Reports

• Alarms

• Missing Functions• Point Marking

• Back-tracing

• Relational Analysis

• Time wise analysis

• Effective Reports

[3],[23],[24],[25]

Literature Description Pros Cons

Wind Retrieval Functions[8]

A mathematical formulation of measurement of wind vector using standard deviation

Manual Evaluation,clea understanding

It is efficient but time consuming approach. Accuracy is very low. Requires Human efforts. No efficiency in Orbit identification.

Quick DQEJet Propulsion Laboratory[12]

Level wise wind vector and orbitidentification

Automatic and capable of change detection

Non-resusable,time consuming, complex to maintain

Automatic Weather Station[17] A configured system with orbit analysis

Accomodates accuracy and trend analysis

Error may occur while back tracing

Literature Description Pros Cons

Voyager DQE[11] Jupiter's geometry detection algorithm

Generalised Reference for ellipsoidal geometries (X,Y,Z)

3-D computations are highly complex and requires heavy resource

IBEX[13] Interstellar Boundary Explorer High efficiency

Orbit change detection without scientific backing is not reliable

OKID[14] Orbit identification Keysfor near surface windsAccuracy is best of its kind

Bigger the geometry higher the computation.

VirtulMeteorology[15] Automated accomodation of orbits

Used for scientific calibration

Not feasible fo real time evaluation


1

Introduction

2

Problem

3

LiteratureSurvey

4

Proposal

Proposal

• Orbit Identification(OI)• Fuzzy Logic based OI

• Pattern based OI

• DQE using flag bit-4• A neural network based approach

Fuzzy Logic based Orbit Identification

Motivation for approach 1: Fuzzy

• OAT Derived Match data• Time

• Latitude

• Longitude

• Attitude

• Roll

• Pich

• Yaw

• Position(x,y,z)

• Velocity(x,y,z)

Motivation for approach 1: Fuzzy

Orbit Identification using fuzzy logic[18]

Boon of the approach

Consideration of South pole crossing

Pattern based Orbit Identification

Overview

• Pattern Based Identification is used for automatic retrieval of orbits from SAR images depending upon contents of images known as features (i.e. a black chirp in the proposed case).

• Scanning consideration describes the process of accessing the interested patterns.

• Simplicity of Action is the outcome of the proposal.

Analysis of Signal Images

Proposal of Identification• A normal C program with I/O & file

operations.

• Scanning Geometry• Pixels in beams

• Number of scans

• Asymptotic Complexity• O(m*n)

• m is number of scans

• n is number of pixels per scan

Flag Based DQE(Neural Network Based DQE)

Globe according to flag bit-4

A grid of 2 classes

1

1 1

1

1

1

1

1

1

1

111

1

11

1

11

1

1

1

22

2

2

22

22

2 22

22

2 22 2

2

2

22 2

2

2

22

22

22 2

22

2

2 2 2 2222

22

2

2

2

2


1

Introduction

2

Problem

3

LiteratureSurvey

4

Proposal

5

Implementation

Implementation

• Prerequisites

• Experiment-1 • Fuzzy logic based OI

• Experiment-2• Pattern Based OI

• Experiment-3• Flag DQE using Artificial Neural

Network

Prerequisites

• Matlab R2013a

• JDK+Netbeans

• C editor & compiler

• Jasper Engine

• HDFView

Experiment-1Fuzzy Logic based Orbit Identification

• If time1 then orbit1





*Using north pole crossing time




*Using equator crossing time





*Using south pole crossing time

Experiment-2Pattern based Orbit Identification

Sensor Signal Data Orbit Count ProgramResultant Fine-tuned

Orbit Statistics

Experiment-3Neural Network Based DQE


1

Introduction

2

Problem

3

Literature Survey

4

Proposal

5Implementation

5

Results

Results

• Pattern based Orbit Identification

• Neural Network based DQE

• Retrospective GRID-GUI

• Added clarity to reports

Pattern Based Orbit Identification Results

Neural Network based DQEResults

Retrospective GRID-UI

Clarity in Reports

Clarity in binning

Overall System Overview

Statistics


1

Introduction

2

Problem

3

Literature Survey

4

Proposal

5Implementation

5

Results

Conclusion

Conclusion

• Conclusion

• Future work

• Bibliography

Conclusion

• A Fuzzy Logic(FL) based orbit identification(OI) has been proposed in this work. To select theattributes a preprocessed data set of Orbit Attitude Records are selected assuming extraction ofLevel-0 and some processing steps have already been performed. Selection of time and latitudehas been justified using Geo-mathematical criteria. Then a short introduction to fuzzy systems isgiven and using that approach the idea is implemented using matlab. This work has made a markin Data Quality Evaluation Modeling. This work is useful for the researchers to develop themodern terrain clustering systems.

• In traditional systems this redundancy leads to waste of computational efforts. Instead, thisapproach provides past knowledge, using which the new data can be segmented as well asanalyzed (using further integration) and improvements to the upcoming observation systems canbe carried-out. Moreover, it also reduces modeling complexity to compute the correlationbetween two images based on geometry, i.e. existing image of DQE and the image which iscurrently computed. It also improves the speed of a spatial data analysis system. Using secondapproach also orbit identification task has been implemented with modeling complexity of O(n).This makes a clear sense to computational geo-informatics about the patterns which areimportant aspect of consideration which was neglected earlier. Binning also improves theanalytical standard for the better understanding of anomalies in data , indirectly in sensors.

Conclusion

• At the end work has been concluded with the initial startup for futurework, i.e. Neural Network based DQE. The Neural Network basedapproach has been tested on randomly selected data products fromthe source NRSC even though surveying the current system with bestaccuracy. Making some more efforts towards the highest accuracythis approach also can show at least a technique other thanconventional technique of flag based DQE . Concluding with theretrospective DQE implementation to bridge the gap described inproblem definition this work encourages many researchers to workfor DQE and OI using modern computing techniques.

Future Work

• General Model Development

• Applicability to wider scope can be designed

• No parallel processes have been defined, thus work can be initiatedfor such faster models

• GRID_UI needs many improvements for the final application, i.e.deliverable

• More powerful soft computing with highest accuracy can be used forbetterment of DQE system.

Paper:1

A Novel Approach of Orbit Identification from Level-0 Data based on Level-1B convention for Scatterometer

using Fuzzy LogicMudit J Dholakia, Anuja Sharma, Dr. C. K. Bhensdadia

XPLORE COMPLIANT ISBN :- 978-1-4673-7807-9CD ISBN:- 978-1-4673-7805-5

PRINT ISBN :- 978-1-4673-7806-2

IEEE INTERNATIONAL CONFERENCE ON SYSTEMS AND CONTROL (ISCO)KARPAGAM COLLEGE OF ENGINEERING ,COIMBATORE,TAMIL NADU

Paper:2

Pattern Based Orbit Identification for SCATTEROMETER Level-0 Signal Images

Mudit J Dholakia, Anuja Sharma, Dr. C. K. Bhensdadia

Journal title: Procedia Computer Science

DOI information: 10.1016/j.procs.2016.03.049

INTERNATIONAL CONFERENCE ON CLOUD COMPUTING AND VIRTUALIZATION (ICCCV)

THAKUR COLLEGE OF ENGINEERING,KANDIVALI,MUMBAI,MAHARASHTRA

IN ASSOCIATION WITH ELSEVIER PROCEEDIA COMPUTER SCIENCE ,ELSEVIER B.V. AMSTERDAM, NETHERLANDS

Paper:3

Analytical Approach for identification of orbits from

SCATTEROMETER Level-0 Noise ImagesMudit J Dholakia, Anuja Sharma, Dr. C. K. Bhensdadia

International Journal of Applied Information Systems (IJAIS) – ISSN : 2249-086803.049




Paper:4

Pattern Based Orbit Identification for SCATTEROMETER Level-0 Signal Echo Window Images


Xplore ISBN:- 978-1-4673-8208-3DVD ISBN:- 978-1-4673-8207-6

IEEE INTERNATIONAL CONFERENCE ON INNOVATION IN INFORMATION AND COMMUNICATION SYSTEMS (ICIIECS)

KARPAGAM COLLEGE OF ENGINEERING, COIMBATORE ,TAMIL NADU

Paper:5

Land-Sea Classification using Machine Learning Technique for SCATTEROMETER L1B Globe


Number by ACM – ICPS for Proceeding Volume: 978-1-4503-4213-1049




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data quality evaluation & orbit identification from scatterometer

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