(41C) Acoustic Wavefront travel time

[SlideRule]

An extract from A Comparison of Two Techniques for Estimating the Travel Time of an Acoustic Wavefront Between Two Receiving Sensors, Frank J. Montalbano {BSEE 1979}, University of Central Florida, Masters Theses, 1984

"                                        ABSTRACT
     In recent years the United States Navy has concentrated most of its Anti-Submarine Warfare (ASW) research and development efforts toward passive sonar. Its ability to locate enemy targets without being detected gives the passive sonar system a supreme strategic advantage over its active counterpart.
     One aspect of passive sonar signal processing is the time delay estimation of an underwater acoustic wavefront. From this estimation the location and velocity of the radiating source (target) can then be determined. This report compares two popular methods of estimating time delay utilizing computer simulations of each: the cross correlator and the beamformer.
…
                                        TABLE OF CONTENTS
…
   APPENDIX A - HP SIMULATION PROGRAM FOR CROSS CORRELATION . . . . 26
   APPENDIX B - HP SIMULATION PROGRAM FOR BEAMFORMING  . . . . . . . . 31
…
                                        APPENDIX A
               HP SIMULATION PROGRAM FOR CROSS CORRELATION
Note: The simulation program contained in this appendix is for use on the Hewlett-Packard Model HP-41C or HP-41CV programmable calculator with the Hewlett-Packard Math Pac module for integration. The program is designed to ask the operator for all of the required inputs. The frequencies should be in Hertz and the time delays in microseconds.
…
                                        APPENDIX B
               HP SIMULATION PROGRAM FOR BEAMFORMING
Note: The simulation program contained in this appendix is for use on the Hewlett-Packard Model HP-41C or HP-41CV programmable calculator with the Hewlett-Packard Math Pac module for integration. The program is designed to ask the operator for all of the required inputs. The frequencies should be in Hertz and the time delays in microseconds.
… "

FULLY documented (flow charts, equations, annotations etc.)

BEST!
SlideRule