Overview

This book is intended for designers of military and civil systems, such as systems for guiding and control, target acquisition, surveillance, laser range-finding, fiber-optical communications, thermal imaging and the like, as well as for designers of photodetectors for optical signal detection. The first question they face is how to detect an ultimately weak optical signal. This book gives the answer to this most important question. All the main types of photodetectors are considered, from photodiodes (including avalanche photodiodes) to focal plane arrays (FPA). Methods of matching photodetectors with preamplifiers are described. The pair photodetector plus preamplifier is treated as an integrated detection system. Much attention is paid to different types of noise and ways of maximising the signal-to-noise ratio (SNR). Foundations of theory of optimal filtering of photosignals are discussed taking due account of typical shapes of optical signals and noise spectra. Methods for tuning quasi-optimal filters to maximise the SNR are explained. The main problems associated with detection of low-level optical signals are considered: operation of avalanche photodiodes in photon count mode, filtering in the case of charge accumulation in FPA cells, and the effect of the number of pixels and geometry of FPAs on detection. Finally, using the examples of the laser range finder and IR Imager, we give guidelines for calculating the limiting parameters of optoelectronic systems to achieve the highest possible SNR. The book is based on many years' experience by the author and his colleagues in the development of photodetectors and FPAs. The book is aimed at research workers, engineers, students and postgraduates.

Full Product Details

Author:   M.A. Trishenkov
Publisher:   Springer
Imprint:   Springer
Edition:   Softcover reprint of the original 1st ed. 1997
Volume:   4
Dimensions:   Width: 15.50cm , Height: 2.40cm , Length: 23.50cm
Weight:   0.735kg
ISBN:  

9789048148929

ISBN 10:   9048148928
Pages:   458
Publication Date:   03 December 2010
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Paperback
Publisher's Status:   Active
Availability:   Manufactured on demand  
We will order this item for you from a manufactured on demand supplier.

Table of Contents

1. Photodetecting Assembly as Detection System for Weak Optical Signals.- 1.1. Functions and Structure of Photodetecting Assembly, CCD, and Other Charge Accumulation Devices.- 1.2. Photodetectors.- 1.3. Amplifier.- 2. Signal and Noise in Photodetecting Assemblies.- 2.1. Pulsed Optical Signal.- 2.2. Basic Notions of Noise Process.- 2.3. Photodetector Noise.- 2.4. Noises of Photodetecting Assembly.- 2.5. Minimization of Photodetecting Assembly Noises.- 3. Foundations of Theory of Optimal Filtering as Applied to Photodetecting Assemblies.- 3.1. Signal — No Signal Decision Making.- 3.2. Optimal Filter (Frequency Analysis).- 3.3. SNR at the Output of Optimal Filter (Frequency Analysis).- 3.4. Noise Equivalent Power, Detectivity, and Other Detection Invariants.- 4. Optimal Filtering of Photo Signals (Time-Domain Analysis).- 4.1. Pulse Characteristic of Optimal Filter.- 4.2. Shape of Signal at the Output of Optimal Filter.- 5. Signal Processing in Real Photodetecting Assemblies ..- 5.1. Quasi-Optimal Filtering.- 5.2. Loss in SNR in Quasi-Optimal Filter.- 5.3. Broad-Band Amplification.- 6. Detection of Weak Optical Signals with Photodetecting Assemblies Based on Avalanche Photodiodes.- 6.1. Broad-Band Amplification and Quasi-Optimal Filtering in Photodetecting Assemblies Based on Avalanche Photodiodes.- 6.2. Quantization and Fluctuation of Signal.- 6.3. Photon Counting Mode of Avalanche Photodiode.- 7. Detection and Processing of Optical Signals in Matrices.- 7.1. Integration Cell As Quasi-Optimal Filter.- 7.2. Multielement Traditional-Type Photodetecting Assemblies and Focal Plane Arrays.- 8. Detection of Weak Optical Signals in Special-Purpose Optoelectronic Systems.- 8.1. Timing of Arrival of Optical Pulse.- 8.2. IR Imager.- Conclusion.- References.

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