Underwater Acoustic Data Processing

Front Matter....Pages i-xiii
Front Matter....Pages 1-1
Fundamentals of Bistatic Active SONAR....Pages 3-24
Sources of Low-Frequency Sound in the Sea....Pages 25-37
Application of the Output Error System Identification Method to the Calibration of Underwater Acoustic Transducers....Pages 39-46
Low Frequency Sector Scanner Using NLA....Pages 47-53
Acoustic Coherence Loss Due to Ocean Boundary Interactions....Pages 55-68
Advanced Methods for the Investigation of the Underwater Channel....Pages 69-85
A New Algorithm for the Identification of Distorted Wavefronts....Pages 87-91
The Multipath Coherence Function for Correlated Random Channels and a Moving Source....Pages 93-97
Vertical Directionality of Ambient Noise at 32 ° N as a Function of Longitude and Wind Speed....Pages 99-104
The Influence of Bubbles on Acoustic Propagation and Scattering....Pages 105-111
In-Situ Measurement of Elastic Properties of Sea Ice....Pages 113-118
Generalized Mixture Noise Models for U.W.A.....Pages 119-124
Some Aspects of Sound Propagation in Shallow Water: Estimation of Source- and Sound Chanel Parameters....Pages 125-140
Mediterranean Underwater Ambient Noise Model.....Pages 141-147
Determination of the Acoustic Properties of the Sea Floor by Measuring the Angle Dependency of the Reflection Coefficient....Pages 149-154
The Influence of Random Thermocline Displacements on Shallow Water Transmission Loss....Pages 155-160
A Review of Target Strength Estimation Techniques....Pages 161-176
Near Field Target Strength Measurements....Pages 177-182
Efficient Processing and Displaying of Active Systems Data....Pages 183-188
Performance of Incoherent Pulse Compression of Costas Signals....Pages 189-193
Front Matter....Pages 1-1
A Numerical and Analytical Approach for Pulse Propagation in Refracting and Random Media....Pages 195-200
Front Matter....Pages 201-201
Future Trends in SONAR Signal Processing....Pages 203-213
Active and Passive Localization: Similarities and Differences....Pages 215-232
State Estimation of Moving Active Targets by Reverberation Analysis....Pages 233-238
Signal Processing in the Linear Statistical Model....Pages 239-242
Parameter Estimation of Signals Corrupted by Noise Using a Matrix of Divided Differences....Pages 243-260
Factor Analysis and Estimation of Covariance Matrix....Pages 261-265
Rayleigh Estimates for High Resolution Direction Finding....Pages 267-271
High Discrimination Target Detection Algorithms and Estimation of Parameters....Pages 273-277
Parametric Methods for Estimation of Signals and Noise in Wavefields....Pages 279-284
Enhanced Minimum Variance Beamforming....Pages 285-291
Optimal Estimation and Beamforming....Pages 293-299
Adaptive Processing of Broadband Acoustic Signals....Pages 301-306
Beamforming on Linear Antennas with Optical Processors....Pages 307-312
Adaptive Methods in Temporal Processing....Pages 313-327
Passive Array Processing: From Conventional to High Resolution Concepts....Pages 329-343
Beamforming in the Presence of Correlated Arrivals....Pages 345-349
High-Resolution Spatial Processing with Short Observation Times....Pages 351-355
Estimation for Array Processing of Spatial Noise Correlations in the Presence of Sources....Pages 357-365
Spatial Array Processing by the Method Clean....Pages 367-372
Front Matter....Pages 201-201
A Robust Adaptive Array Structure Using the Soft Constrained LMS Algorithm....Pages 373-377
Design and Development of an Acoustic Antenna System for Industrial Noise Source Identification....Pages 379-384
A Small Aperture Acoustic Direction Finder....Pages 385-391
Inverse Problems: A Tutorial Survey....Pages 393-411
Applied Modelling to Underwater Vehicles Identification....Pages 413-419
The Effect of Mismatch on Array Processors with Normal Mode Replica Vectors....Pages 421-425
Robust Beamforming for Matched Field Processing Under Realistic Environmental Conditions....Pages 427-431
Threshold Extension by Nonlinear Techniques....Pages 433-452
Application of Acoustics in the Land Environment....Pages 453-459
Systolic Array Implementation of Parallel Kalman Filtering for Heave Compensation in Underwater Acoustic Data Processing....Pages 461-465
TMA Performance for Towed Arrays of Low Manoeuvrability....Pages 467-472
Multi-Tracks Association for Underwater Passive Listening....Pages 473-477
New Observability Criterion in Target Motion Analysis....Pages 479-484
Bearings Only Target Motion Analysis....Pages 485-489
Models for The Application of Kalman Filtering to the Estimation of the Shape of a Towed Array....Pages 491-495
Frequency Line Tracking Algorithms....Pages 497-501
Localization of Far-Field Sources with an Array of Unknown Geometry....Pages 503-509
Passive Localization....Pages 511-524
Inter-Array Data Association and Target Motion Analysis....Pages 525-529
Joint Delay and Signal Determination....Pages 531-536
Front Matter....Pages 537-537
Use of Multicolor Displays for Sonar Detection....Pages 539-544
Artificial Intelligence and Signal Understanding....Pages 545-560
An Artificial Intelligence Approach to Multipath Localization and Tracking....Pages 561-565
3D Reconstruction and Recognition from Multiple Views and with Different Acquisition Constraints....Pages 567-572
Expert System Applications in Underwater Acoustics....Pages 573-589
Classification of Ships Using Underwater Radiated Noise....Pages 591-596
Practical Experience Gained During the Building of an Expert System for the Interpretation of Underwater Signals....Pages 597-601
Knowledge-Based Interpretation of Passive SONAR Data....Pages 603-607
“Constant Capacity,” DSP Architecture—An Historical Perspective....Pages 609-627
Parallel Computing You Can Do....Pages 629-635
Practical Graph Partitioning Algorithms for SONAR....Pages 637-643
Concurrency in Digital Signal Processing....Pages 645-650
An Experimental SONAR System Using Transputers....Pages 651-655
Back Matter....Pages 657-674