Signal analysis

Claim 1

THE METHOD OF SEISMIC SURVEYING WHICH COMPRISES IMPARTING VIBRATIONS TO THE EARTH SEQUENTIALLY AT A PLURALITY OF FIRST LOCATIONS SPACED FROM ONE ANOTHER, SEPARATELY RECORDING VIBRATIONS REFLECTED FROM SUBTERRANEAN FORMATIONS TO SECOND AND THIRD LOCATIONS ADJACENT ONE ANOTHER AT THE SURFACE OF THE EARTH RESULTING FROM EACH OF THE VIBRATIONS BEING IMPARTED TO THE EARTH SO AS TO PROVIDE A PLURALITY OF PAIRS OF SIGNALS, EACH PAIR OF SIGNALS BEING REPRESENTATIVE OF VIBRATIONS IMPARTED TO THE EARTH FROM A RESPECTIVE FIRST LOCATION, MULTIPLYING THE INDIVIDUAL SIGNALS OF SAID PAIRS OF SIGNALS DIRECTLY BY ONE ANOTHER WITH A PLURALITY OF TIME RELATIONSHIPS THEREBETWEEN, INTEGRATING EACH OF THE RESULTING PRODUCTS, AND SEQUENTIALLY SAMPLING THE INTEGRALS OF THE PRODUCTS FOR EACH PAIR OF SIGNALS, THEREBY MEASURING THE DEGREE OF CORRELATION BETWEEN THE INDIVIDUAL SIGNALS OF SAID PAIRS OF SIGNALS AT A PLURALITY OF TIME RELATIONSHIPS THEREBETWEEN.

Claim 2

THE METHOD OF SEISMIC SURVEYING WHICH COMPRISES IMPARTING VIBRATIONS TO THE EARTH SEQUENTIALLY AT A PLURALITY OF FIRST LOCATIONS SPACED FROM ONE ANOTHER, SEPARATELY RECORDING VIBRATIONS REFLECTED FROM SUBTERRANEAN FORMATIONS TO SECOND AND THIRD LOCATIONS ADJACENT ONE ANOTHER AT THE SURFACE OF THE EARTH RESULTING FROM EACH OF THE VIBRATIONS BEING IMPARTED TO THE EARTH SO AS TO PROVIDE A PLURALITY OF PAIRS OF SIGNALS, EACH PAIR OF SIGNALS BEING REPRESENTATIVE OF VIBRATIONS IMPARTED TO THE EARTH FROM A RESPECTIVE FIRST LOCATION, MULTIPLYING THE INDIVIDUAL SIGNALS OF SAID PAIRS OF SIGNALS DIRECTLY BY ONE ANOTHER WITH A PLURALITY OF TIME RELATIONSHIPS THEREBETWEEN, INTEGRATING EACH OF THE RESULTING PRODUCTS, AND SEQUENTIALLY SAMPLING THE INTEGRALS OF THE PRODUCTS FOR EACH PAIR OF SIGNALS, THEREBY MEASURING THE DEGREE OF CORRELATION BETWEEN THE INDIVIDUAL SIGNALS OF SAID PAIRS OF SIGNALS AT A PLURALITY OF TIME RELATIONSHIPS THEREBETWEEN.