TABLE OF CONTENTS 



Page 



ABSTRACT 1 



INTRODUCTION 2 



OPERATING PRINCIPLES 3 



DETAILED DESCRIPTION OF COMPONENTS 4 



BUOY ASSEMBLY 4 



ACCELEROMETER 5 



TRANSMITTER 5 



BATTERY PACK 6 



RECEIVING ANTENNA 6 



RECEIVER „ 7 



LOW- PASS FILTER 7 



RECORDING 7 



SOME REMARKS ON THE ACCELERATION RECORD 8 



CALCULATION OF THE WAVE SPECTRUM 9 



EXPERIMENTAL VERIFICATION 11 



PROPOSED IMPROVEMENTS 14 



REFERENCES , 16 



