Method and system for detecting an object with a radio wave
First Claim
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1. A method of detecting of detecting location, shape and material of an object, comprising the steps of:
- radiating a radio wave toward an object;
receiving an echo wave of said radio wave reflected from said object to detect an intensity of said echo wave;
comparing a phase of the radiated radio wave with that of said echo wave to detect a phase difference between said radiated wave and said echo wave; and
displaying on a display unit the location and shape of the object on the basis of the intensity of said echo wave and displaying on said display unit the material of said object on the basis of said phase difference between said radiated wave and said echo wave.
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Abstract
Method and apparatus for detecting an object by using a radio wave which is radiated by an antenna toward the object to be detected. An echo wave of the radio wave reflected from the object is received by the antenna. On the basis of phase difference between the transmitted waveform and the received waveform, material of the object is discriminatively identified. The object is displayed as an image on a display unit.
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Citations
12 Claims
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1. A method of detecting of detecting location, shape and material of an object, comprising the steps of:
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radiating a radio wave toward an object; receiving an echo wave of said radio wave reflected from said object to detect an intensity of said echo wave; comparing a phase of the radiated radio wave with that of said echo wave to detect a phase difference between said radiated wave and said echo wave; and displaying on a display unit the location and shape of the object on the basis of the intensity of said echo wave and displaying on said display unit the material of said object on the basis of said phase difference between said radiated wave and said echo wave. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for detecting location, shape and material of an object, comprising:
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means for radiating a radio wave toward an object; means for detecting an echo wave of said radio wave reflected from said object to detect an intensity of said echo wave; phase difference for comparing a phase of said radiated radio wave with that of said echo wave to detect a phase difference between said radiated wave and said echo wave; and means for displaying on a display unit the location and shape of said object on the basis of the intensity of said echo wave, and for displaying on said display unit the material of said object on the basis of said phase difference between said radiated wave and said echo wave. - View Dependent Claims (11, 12)
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Specification