System and method for detecting interference in global positioning satellite signals
First Claim
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1. A system for monitoring GPS accuracy, comprising:
- a stationary GPS receiver capable of determining its GPS coordinates;
a memory capable of storing an initial location of said GPS receiver and a user-defined range of error;
a processor being programmed to determine whether GPS coordinates from said GPS receiver differ from said initial location by more than a range of error, and for issuing a warning in response thereto;
a plurality of remote units, each including said GPS receiver, said memory, said processor, and a transmitter capable of sending said warning; and
a monitoring unit including a receiver capable of receiving said warning from each of said plurality of remote units, and a display capable of displaying information relating to said warning;
wherein said plurality of remote units collectively provide local interference detection over an area.
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Abstract
A system and method are provided for detecting local interference in GPS signals. A GPS receiver is capable of determining its GPS coordinates. A memory is capable of storing an initial location of the GPS receiver and a user-defined range of error. A processor is programmed to determine whether GPS coordinates from the GPS receiver differ from the initial location by more than a range of error, and for issuing a warning in response thereto.
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Citations
6 Claims
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1. A system for monitoring GPS accuracy, comprising:
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a stationary GPS receiver capable of determining its GPS coordinates; a memory capable of storing an initial location of said GPS receiver and a user-defined range of error; a processor being programmed to determine whether GPS coordinates from said GPS receiver differ from said initial location by more than a range of error, and for issuing a warning in response thereto; a plurality of remote units, each including said GPS receiver, said memory, said processor, and a transmitter capable of sending said warning; and a monitoring unit including a receiver capable of receiving said warning from each of said plurality of remote units, and a display capable of displaying information relating to said warning; wherein said plurality of remote units collectively provide local interference detection over an area.
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2. A method for detecting errors in detect position, comprising:
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determining an initial position of a marker; receiving signals at the marker; calculating, from the signals, a detected position of the marker; comparing the detected position and the initial position; and issuing a warning if the detected position differs from the initial position by more than a predetermined amount; said determining further comprising; calculating a plurality of positions for the marker over a period of time; statistically analyzing the plurality of positions; and setting said initial position based on a result of said analyzing. - View Dependent Claims (3, 4, 5)
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6. A system for detecting local interference in GPS signals, comprising:
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a plurality of remote units, each including; a circuit capable of determining a location of said circuit; a memory capable of storing an initial location of said circuit and a range of error; a processor being programmed to determine whether a detected location of said circuit differs from said initial location by more than a range of error, and for issuing a warning in response thereto; a transmitter capable of transmitting said warning; a monitoring unit including a receiver capable of receiving said warning from each of said plurality of remote units, and a display capable of displaying information relating to said warning; wherein said plurality of remote units collectively provide local interference detection over an area.
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Specification