The Application of Hydroacoustic Methods for Aquatic Biomass Measurements
نویسندگان
چکیده
PREFACE 1.0 INTRODUCTION 2.0 BASIC CONCEPTS 2. I ECHO SIGNAL SINGLE TARGET 2.2 ECHO SIGNAL MULTIPLE TARGETS 2.3 CORRELATION 2.4 TIME AVERAGING 3.0 ABUNDANCE ESTIMATION 3.1 THICK SCATTERING LAYER 3.2 ENVELOPE SAMPLING 3.3 ENVELOPE INTEGRATION 3.4 THIN SCATTERING LAYER 3.5 VARIANCE ERROR THICK SCATTERING LAYER 3.6 VARIANCE ERROR THIN SCATTERING LAYER 4.0 SUMMARY 5.0 CONCLUSION APPENDIX A DISTRIBUTION OF THE SPACING BETWEEN UNIFORMLY DISTRIBUTED POINTS APPENDIX B CORRELATION COEFFICIENT FOR THICK SCATTEIUNG LAYER APPENDIX C DETERMINATION OF VARIANCE ERROR OF INTEGRATION APPENDIX D DETERMINATION OF VARIANCE OF SAMPLING ERROR APPENDIX E PROPAGATION OF SOUND THROUGH A SCATTERING LAYER APPENDIX F COMPENDIUM OF SIMULATIONS AND SUPPORTING ANALYSES
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