Apparatus for and a method of determining the position of electromagnetic noise source
First Claim
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1. A METHOD OF DETERMINING THE RANGE OF A SOURCE OF ELECTROMAGNETIC RADIATION RELATIVE TO A RECEIVER WHEN SAID SOURCE AND RECEIVER ARE MOVING RELATIVE TO EACH OTHER, COMPRISING THE STEPS OF:
- (A) RECEIVING THE TRANSMISSIONS FROM SAID SOURCE VIA A DIRECT PATH AND A REFLECTIVE PATH, (B) CORRELATING THE DIRECTLY RECEIVED SIGNAL AND THE REFLECTIVELY RECEIVED SIGNAL TO OBTAIN THE TIME DIFFERENCE OF ARRIVAL OF SAID SIGNALS $ AT SAID RECEIVER AND TO OBTAIN THE DOPPLER FREQUENCY DIFFERENCE FD OF SAID SIGNAL, COMPUTING FD THE TIME RATE OF CHANGE OF FD, (C) OBTAINING THE ALTITUDE AND SPEED OF THE RECEIVER, AND (D) COMPUTING THE RANGE R1, OF THE SOURCE FROM THE RECEIVER FROM THE FOLLOWING EQUATIONS;
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1 Claim
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1. A METHOD OF DETERMINING THE RANGE OF A SOURCE OF ELECTROMAGNETIC RADIATION RELATIVE TO A RECEIVER WHEN SAID SOURCE AND RECEIVER ARE MOVING RELATIVE TO EACH OTHER, COMPRISING THE STEPS OF:
- (A) RECEIVING THE TRANSMISSIONS FROM SAID SOURCE VIA A DIRECT PATH AND A REFLECTIVE PATH, (B) CORRELATING THE DIRECTLY RECEIVED SIGNAL AND THE REFLECTIVELY RECEIVED SIGNAL TO OBTAIN THE TIME DIFFERENCE OF ARRIVAL OF SAID SIGNALS $ AT SAID RECEIVER AND TO OBTAIN THE DOPPLER FREQUENCY DIFFERENCE FD OF SAID SIGNAL, COMPUTING FD THE TIME RATE OF CHANGE OF FD, (C) OBTAINING THE ALTITUDE AND SPEED OF THE RECEIVER, AND (D) COMPUTING THE RANGE R1, OF THE SOURCE FROM THE RECEIVER FROM THE FOLLOWING EQUATIONS;
- (A) RECEIVING THE TRANSMISSIONS FROM SAID SOURCE VIA A DIRECT PATH AND A REFLECTIVE PATH, (B) CORRELATING THE DIRECTLY RECEIVED SIGNAL AND THE REFLECTIVELY RECEIVED SIGNAL TO OBTAIN THE TIME DIFFERENCE OF ARRIVAL OF SAID SIGNALS $ AT SAID RECEIVER AND TO OBTAIN THE DOPPLER FREQUENCY DIFFERENCE FD OF SAID SIGNAL, COMPUTING FD THE TIME RATE OF CHANGE OF FD, (C) OBTAINING THE ALTITUDE AND SPEED OF THE RECEIVER, AND (D) COMPUTING THE RANGE R1, OF THE SOURCE FROM THE RECEIVER FROM THE FOLLOWING EQUATIONS;
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Current AssigneeBasil W. Wentworth, Edwin L. Ellis
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Original AssigneeBasil W. Wentworth, Edwin L. Ellis
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InventorsWentworth, Basil W., Ellis, Edwin L.
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Application NumberUS04/324,164Time in Patent Office861 DaysField of SearchUS Class Current342/451CPC Class CodesG01S 11/02 using radio waves G01S19/00...G01S 5/0246 involving frequency differe...
