METHOD FOR DETECTING A COVERED DIELECTRIC OBJECT
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Abstract
The invention relates to a method for detecting a covered dielectric object, where a microwave signal that can be modified in frequency is generated at a particular bandwidth and transmitted in the direction of the covered dielectric object. The microwave signal reflected by the object is then obtained from the three-dimensional measurement result in a lateral, two-dimensional pattern, a highest signal amplitude and a second-highest signal amplitude within a particular time period before or after the received microwave signal is identified in a plurality of pattern points of the pattern. The object is detected if an accumulation of pattern points of the pattern is present, in which the difference in each case between the highest and the second highest signal amplitude of the received microwave signal is less than a defined threshold value.
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Citations
32 Claims
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1-12. -12. (canceled)
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13. A method for detecting a concealed dielectric object, said method comprising:
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generation and transmission of a microwave signal in the direction towards the concealed object, registration of the microwave signal reflected from the object in a spatial raster, identification of a highest signal amplitude and a second highest signal amplitude preceding or following the highest signal amplitude within a given time interval over the time course of the registered microwave signal at several raster points of the raster, formation of a difference between the highest and second-highest signal amplitude of the registered microwave signal determined at each raster point and comparison of the difference with an specified threshold value, and detection of the object if an accumulation of raster points of the raster at which the difference between the highest and the second-highest signal amplitude of each registered microwave signal is smaller than the specified threshold value, is present. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification