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Building Earth Observation Cameras

Langue : Anglais

Auteur :

Couverture de l’ouvrage Building Earth Observation Cameras

Building Earth Observation Cameras discusses the science and technology of building an electro-optical imaging system for a space platform from concept to space qualification and in-orbit evaluation. The book provides a broad overview of various Earth imaging systems with specific examples illustrating the design and development issues that impacted the Indian Remote Sensing Satellite (IRS) cameras, and is based on the actual experience of the author, who was intimately involved with the development of cameras for the IRS program. It equips imaging system project managers, scholars, and researchers with the ability to look deeper into the systems that they are developing, and arms application scientists who use satellite imagery with a greater understanding of the technical aspects and terminology used in defining the performance of the image system. The text traces the historical development of imaging systems, reviews the evolution of Earth observation systems from a global perspective, and examines future trends. This interdisciplinary work: Presents technical issues associated with the design, fabrication, and characterization of the camera. Provides a narrow focus and end-to-end solutions to all components involved in a successful camera-on-Earth observation system. Covers various stages including image formation, optics, opto-mechanics, material choice, design tradeoffs, fabrication, evaluation, and finally qualifying the system for space use. Building Earth Observation Cameras provides the tools needed to enable readers to better understand the concepts and challenges involved in building space-based Earth observation systems.

Introduction

Remote Sensing

The Civilian Earth Imaging System

The Indian Earth Observation Program-the evolution

The Earth Observation System – The Paradigm Shift:

References

Image Formation

Electromagnetic Radiation

Some Useful Terminologies of Imaging System

Aberrations

Wave Optics

Image Quality Evaluation

Modulation Transfer Function

Source of EM Radiation for Imaging

Radiometric Consideration

References

Imaging Optics

Refractive Optics

Reflective and Catadioptic Systems

Stray Light Control and Baffling

Building Reflective Telescope

References

Earth Observation Camera - An Overview

Spatial Resolution

Spectral Resolution

Radiometric Resolution

Temporal Resolution

Performance specification

Imaging Modes

On-orbit Performance Evaluation

References

Opto-Mechanical Scanners

Principle of Operation

Scanning Systems

Collecting Optics

Dispersive System and Focal Plane Layout

Detectors

System Design Considerations

Enhanced Thematic Mapper Plus (ETM+)

References

Pushbroom Imagers

Principle of Operation

Linear Array for Pushbroom Scanning

CCD Signal Generation and Processing

Space borne Pushbroom Cameras

IRS Cameras - LISS &

The IRS C/D Camera

RESOURCESAT Series

SPOT Earth Observation Camera

Landsat -Landsat Data Continuity Mission (LDCM)

Hybrid Scanner

References

Sub-meter Imaging

Considerations for Realising High Resolution Imaging System

Increasing the Integration Time

Choosing Faster Optics

Data Transmission

Constraints on the Satellite

Imaging Cameras with Sub-meter Resolution

What Limits the Spatial Resolution?

References

Hyperspectral Imaging

Hyperspectral Imaging Configuration

Spectrometers - An Overview

Distortions - ''Smile'' and ''Keystone'' Effects

Hyperspectral Imaging Instruments

References

Adding the Third Dimension - Stereo Imaging

Stereo Pair Generation Geometries

Along-Track Stereo Using Multiple Telescopes

Stereo Pairs with Single Optics

References

Journey from Ground to Space

Launch Environment

Space Environment

Space Hardware Realisation Approach

Environmental Tests

Reviews

Parts/Components Procurement

Reliability and Quality Assurance

References

Appendix. Representative Imageries

Optical/space/remote sensing engineers, application scientists and space agencies.

Dr. George Joseph started his career in 1962 at the Tata Institute of Fundamental Research (TIFR), Mumbai, where he was involved in the study of cosmic rays. For his pioneering work on the detection of the emission of neutrons from the sun, he was awarded a PhD in 1971. In 1973, he joined the Space Applications Centre (SAC), one of the major centers of the Indian Space Research Organization (ISRO), primarily for developing Earth observation systems. Under his leadership, a variety of Earth observation cameras were developed for the Indian Remote Sensing Satellite (IRS) and the Indian National Satellite (INSAT).

Date de parution :

15.6x23.5 cm

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Date de parution :

Ouvrage de 368 p.

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