Theoretical Framework and Techniques for Laser Detection Utilizing Coherence.

Format:

Book

Author/Creator:

Hu, Yihua.

Series:

Current Natural Sciences Series

Language:

English

Physical Description:

1 online resource (208 pages)

Edition:

1st ed.

Place of Publication:

Les Ulis : EDP Sciences, 2025.

Summary:

This book introduces the theories and methods of laser coherent detection in the field of high-performance target detection. It includes five chapters, including the theoretical foundation of laser coherent detection, laser coherent detection of atmospheric disturbances, the chirped amplitude-modulated (AM) laser coherent detection of range and velocity, laser coherent detection based on the micro-Doppler effect, and laser coherent detection of synthetic aperture lidars (SALs).The book offers an invaluable resource for researchers, especially those who are engaged in fields including laser imaging, photoelectric information acquisition, target detection and recognition, and laser technology. Additionally, it can be used as a reference book for professional teachers, advanced undergraduates, and postgraduates of relevant majors.

Contents:

Cover-1

Theoretical Framework and Techniques for Laser Detection Utilizing Coherence

Preface

Contents

Foreword

Theoretical Basis of Laser Coherent Detection

Overview of Laser Detection

Principles of Laser Coherent Detection

Square-Law Characteristic of Photoelectric Detectors

Characterization of Laser Coherent Detection Signals

Signal-to-Noise Ratio of Laser Coherent Detection

Noise of Photoelectric Detectors

Signal-to-Noise Ratio of Coherent Detection

Coherence Efficiency of Laser Coherent Detection

Signal and LO Optical Fields

Coherence Efficiency Analysis

Basic Characteristics of Laser Coherent Detection

Overview of Typical Applications of Laser Coherent Detection

Laser Detection of Atmospheric Disturbances

Laser Ranging and Velocity Measurement

Laser Detection Based on the Micro-Doppler Effect

High-Resolution Synthetic Aperture Laser Imaging

References

Laser Coherent Detection of Atmospheric Disturbances

Fundamental Principles

Radar Equation for Laser Detection of Atmosphere

Fundamental Principles of Laser Coherent Atmospheric CO2 Detection

Fundamental Principles of Laser Coherent Detection of Wind-Field Disturbances

Experimental System for Laser Coherent Detection of Atmospheric Disturbances

Overall Structure of the Detection System

Parameter Design of the Detection System

Pulse Data Processing of Detection Echoes

Laser Coherent Detection Experiments of Atmospheric Disturbances

Atmospheric CO2 Detection Experiments

Atmospheric Wind-Field Detection Experiments

Chirped AM Laser Coherent Detection of Range and Velocity

Principle of Chirped AM Ranging

Principle of Chirped AM Velocity Measurement

Characteristics of Chirp Signals and De-Chirping

Chirp Signals and Their Ambiguity Function.

Pulse Compression by a Matched Filter

Frequency-Domain Pulse Compression of Chirp Signals

Range-Velocity Coupling

Balanced Coherent Detection

Chirped AM Laser Coherent Detection Experiment of Range and Velocity

Chirped AM Laser Heterodyne Coherent Detection Experiments of Range

Chirped AM Laser Homodyne Coherent Detection Experiments of Range and Velocity[10]

Laser Coherent Detection Based on the Micro-Doppler Effect

Fundamental Principles of the Micro-Doppler Effect for Laser Detection

Doppler and Micro-Doppler Effects

Modeling of Echoed Photocurrent Signals in Target Vibration Detection

Modeling of Echoed Photocurrent Signals of Targets with Multiple Scattering Points

Influencing Factors of Characteristics of Laser Micro-Doppler Signals

Target Micro-Doppler Signal Acquisition and Experimental System for Laser Coherent Detection

Target Micro-Motion Feature Extraction Based on TFA

TFA of Micro-Doppler Signals of Targets

Decomposition of Time-Frequency Features of Multi-Component Signals Based on Curve Tracking

Separation and Extraction of Time-Frequency Features of Micro-Motions Based on Empirical Mode Decomposition

Micro-Motion Parameter Estimation Based on Signal Models

Micro-Motion Parameter Estimation Using PF Based on SPM

Micro-Motion Parameter Estimation Based on ML

Laser Coherent Detection Using Synthetic Aperture Technology

Fundamental Principles of SALs

Intuitive Concept of Synthetic Aperture in Lidars

Echo Signal Model of SALs

Fundamental Principles of Coherent Mixing of Chirp Signals

SAL Imaging Algorithms

R-D Imaging Algorithm

Phase Gradient Autofocus Algorithm

Laser Coherent Detection Experiments Using Synthetic Aperture Technology

Structure of the Experimental System

Data Processing Flow.

Analysis of Experimental Results

References.

Notes:

Description based on publisher supplied metadata and other sources.

ISBN:

9782759836819

2759836819