System and method for calibration of measurements of interacted EM signals in real time
First Claim
Patent Images
1. A method of calibrating a measurement of electromagnetic (EM) signals, comprising:
- conducting an EM signal to a splitter via a dynamic transmission path having variation in at least one of a time response and a frequency response over time;
separating at least one reference signal component from said EM signal using said splitter;
delaying at least one of said EM signal and said at least one reference signal component;
intercepting a reception that combines said EM signal after an interaction with a target object and said at least one reference signal component after at least one interaction with at least one reference element having at least one of a known time response and a known frequency response;
extracting said EM signal after said interaction with said target object and said at least one reference signal component from said reception during different time slots; and
compensating for said variation by calibrating a measurement of said interacted EM signal by a signal analysis of said extracted and interacted at least one reference signal component.
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Abstract
A method of calibrating a measurement of electromagnetic (EM) signals. The method comprises separating at least one reference signal component from an EM signal, delaying at least one of the EM signal and the at least one reference signal component, extracting the EM signal after an interaction with a target object and the at least one reference signal component after at least one interaction with at least one reference element from different time slots in a reception, and calibrating a measurement of the interacted EM signal by a signal analysis of the extracted and interacted at least one reference signal component.
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Citations
23 Claims
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1. A method of calibrating a measurement of electromagnetic (EM) signals, comprising:
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conducting an EM signal to a splitter via a dynamic transmission path having variation in at least one of a time response and a frequency response over time; separating at least one reference signal component from said EM signal using said splitter; delaying at least one of said EM signal and said at least one reference signal component; intercepting a reception that combines said EM signal after an interaction with a target object and said at least one reference signal component after at least one interaction with at least one reference element having at least one of a known time response and a known frequency response; extracting said EM signal after said interaction with said target object and said at least one reference signal component from said reception during different time slots; and compensating for said variation by calibrating a measurement of said interacted EM signal by a signal analysis of said extracted and interacted at least one reference signal component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus of calibrating a measurement of electromagnetic (EM) signals, comprising:
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a dynamic transmission path having variation in at least one of a time response and a frequency response over time; at least one splitter which receives an EM signal conducted via said dynamic transmission and separates at least one reference signal from said EM signal; at least one time delay unit which delays at least one of said EM signal and said at least one reference signal; and a calibration module which intercepts a reception that combines said EM signal after an interaction with a target object and said at least one reference signal after at least one interaction with at least one reference element having at least one of a known time response and a known frequency response and extracts said EM signal after said interaction with said target object and said at least one reference signal during different time slots of said reception, said calibration module compensates for said variation by calculating a calibration of a measurement based on said EM signal according to a signal analysis of said extracted and interacted at least one reference signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23)
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21. A monitoring apparatus of performing a measurement of electromagnetic (EM) signals, comprising:
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a dynamic transmission path having variation in at east one of a time response and a frequency response over time; a transmitter which generates an EM signal which is directed via said dynamic transmission path toward a target object; a receiver which intercepts a reception that combines between said EM signal after an interaction with said target object and at least one reference signal component; a measuring unit which performs a measurement of a property of said target object according to said interacted EM signal; and a calibration module which separates said at least one reference signal component and said EM signal after said interaction with said, target object from said reception and computes a calibration for said measurement to compensate for said variation; wherein said EM signal and said at east one reference signal component are not diverted by a switch.
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Specification