Method and means for generating and analyzing special waveform signals of high information content

Claim 1

APPARATUS FOR PROPAGATING AN EASILY IDENTIFIABLE SIGNAL THROUGH A HETEROGENEOUS, NOISY, UNSTABLE MEDIUM COMPRISING, IN COMBINATION: MEANS PROVIDING A FIRST PULSE OF OSCILLATORY ENERGY; MEANS PROVIDING A SECOND PULSE OF OSCILLATORY ENERGY, SAID SECOND PULSE BEING OF SHORTER PERIOD THAN THE FIRST, THE AMPLITUDE OF SAID SECOND PULSE BEING GREATER THAN THE AMPLITUDE OF SAID FIRST PULSE, THE PHASE OF THE OSCILLATIONS OF SAID SECOND PULSE BEING REVERSED 180 DEGREES RELATIVE OT THE PHASE OF THE OSCILLATIONS OF SAID FIRST PULSE, AND THE DURATIONAL PERIOD OF SAID SECOND PULSE OCCURRING WITHIN THE DURATIONAL PERIOD OF SAID FIRST PULSE; MEANS FOR ADDING SAID TWO PULSES TOGETHER THEREBY FORMING AN INTERIORLY PHASE-REVERSED PULSE OF ENERGY; AND MEANS FOR PROPAGATING A REPLICA OF SAID PHASE-REVERSED PULSE WITHIN SAID MEDIUM.

Claim 3

A METHOD FOR GENERATING AN ECHO RANGING SIGNAL AND IDENTIFYING ITS ECHO REFLECTED FROM A TARGET LOCATED WITHIN A HETEROGENEOUS, NOISY, UNSTABLE MEDIUM COMPRISING THE THE STEPS OF: GENERATING A FIRST PULSE OF OSCILLATORY ENERGY; GENERATING A SECOND PULSE OF OSCILLATORY ENERGY, SAID SECOND PULSE BEING OF SHORTER PERIOD THAN THE FIRST, THE PHASE OF SAID SECOND PULSE BEING REVERSED 180 DEGREES RELATIVE TO THE PHASE OF SAID FIRST PULSE, THE AMPLITUDE OF SAID SECOND PULSE BEING GREATER THAN THE AMPLITUDE OF SAID FIRST PULSE, THE DURATIONAL PERIOD OF SAID SECOND ULSE OCCURRING WITHIN THE DURATIONAL PERIOD OF SAID FIRST PULSE; ADDING SAID TWO PULSES TOGETHER, THEREBY FORMING AN INTERIORLY PHASE-REVERSED PULSE OF ENERGY, PROPAGATING A REPLICA OF SAID PHASE-REVERSED PULSE WITHIN SAID MEDIUM; RECEIVING AN ECHO SIGNAL REFLECTED FROM SAID TARGET AND CONVERTING SAID ECHO SIGNAL INTO A CORRESPONDING ELECTRICAL SIGNAL; AND CROSS-CORRELATING SAID CORRESPONDING ELECTRICAL SIGNAL WITH A REPLICA OF THE PROPAGATED PULSE WHICH INCLUDES A PHASE REVERSAL.

Claim 4

A METHOD FOR GENERATING AN ECHO RANGING SIGNAL AND IDENTIFYING ITS ECHO REFLECTED FROM A TARGET LOCATED WITHIN A HETEROGENEOUS, NOISY, UNSTABLE MEDIUM COMPRISING THE THE STEPS OF: GENERATING A FIRST PULSE OF OSCILLATORY ENERGY; GENERATING A SECOND PULSE OF OSCILLATORY ENERGY, SAID SECOND PULSE BEING OF SHORTER PERIOD THAN THE FIRST, THE PHASE OF SAID SECOND PULSE BEING REVERSED 180 DEGREES RELATIVE TO THE PHASE OF SAID FIRST PULSE, THE AMPLITUDE OF SAID SECOND PULSE BEING GREATER THAN THE AMPLITUDE OF SAID FIRST PULSE, THE DURATIONAL PERIOD OF SAID SECOND ULSE OCCURRING WITHIN THE DURATIONAL PERIOD OF SAID FIRST PULSE; ADDING SAID TWO PULSES TOGETHER, THEREBY FORMING AN INTERIORLY PHASE-REVERSED PULSE OF ENERGY, PROPAGATING A REPLICA OF SAID PHASE-REVERSED PULSE WITHIN SAID MEDIUM; RECEIVING AN ECHO SIGNAL REFLECTED FROM SAID TARGET AND CONVERTING SAID ECHO SIGNAL INTO A CORRESPONDING ELECTRICAL SIGNAL; AND CROSS-CORRELATING SAID CORRESPONDING ELECTRICAL SIGNAL WITH A REPLICA OF THE PROPAGATED PULSE WHICH INCLUDES A PHASE REVERSAL.