System and method for detecting an intruder using impulse radio technology
First Claim
Patent Images
1. A method of detecting an object, comprising the steps of:
- transmitting a first ultra-wideband (UWB) signal;
receiving the first UWB signal;
generating a first waveform that indicates a multipath structure of a propagation channel of the transmitted first UWB signal;
transmitting a second UWB signal;
receiving the second UWB signal;
generating a second waveform that indicates a multipath structure of a propagation channel of the transmitted second UWB signal; and
comparing the first waveform and the second waveform to detect said object.
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Abstract
An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection system and method can utilize impulse radio technology to determine a location of the intruder within the protection zone and also track the movement of the intruder within the protection zone. Moreover, the intrusion detection system and method can utilize impulse radio technology to create a specially shaped protection zone before trying to detect when and where the intruder has penetrated and moved within the protection zone.
147 Citations
23 Claims
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1. A method of detecting an object, comprising the steps of:
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transmitting a first ultra-wideband (UWB) signal; receiving the first UWB signal; generating a first waveform that indicates a multipath structure of a propagation channel of the transmitted first UWB signal; transmitting a second UWB signal; receiving the second UWB signal; generating a second waveform that indicates a multipath structure of a propagation channel of the transmitted second UWB signal; and comparing the first waveform and the second waveform to detect said object. - View Dependent Claims (2, 3, 4)
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5. A method of detecting an object, comprising the steps of:
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generating a first waveform that indicates a multipath structure of a propagation channel of a transmitted first ultra-wideband (UWB) signal; generating a second waveform that indicates a multipath structure of a propagation channel of a transmitted second UWB signal; and comparing the first waveform and the second waveform to detect said object. - View Dependent Claims (6, 7, 8)
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9. A method of detecting an object, comprising the steps of:
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transmitting a plurality of ultra-wideband (UWB) signals; receiving the plurality of UWB signals; generating a plurality of waveforms, each of the plurality of waveforms indicating a multipath structure of a propagation channel of the corresponding one of the transmitted plurality of UWB signals; and comparing two of said plurality of waveforms to detect said object. - View Dependent Claims (10, 11, 12)
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13. A security system, comprising:
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a transmitting impulse radio unit for transmitting a first ultra-wideband (UWB) signal and a second UWB signal; a receiving impulse radio unit for receiving the first UWB signal and the second UWB signal; said receiving impulse radio unit for generating a first waveform that indicates a multipath structure of a propagation channel of the transmitted first UWB signal; said receiving impulse radio unit for generating a second waveform that indicates a multipath structure of a propagation channel of the transmitted second UWB signal; and a processor for comparing the first waveform to the second waveform to detect an object. - View Dependent Claims (14, 15, 16, 17)
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18. A security system comprising:
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a transmitting impulse radio unit for transmitting a plurality of ultra-wideband (UWB) signals; a first receiving impulse radio unit for receiving the plurality of UWB signals; a processor for generating a plurality of waveforms, each of the plurality of waveforms indicates a multipath structure of a propagation channel of the corresponding one of the transmitted plurality of UWB signals; and said processor for comparing two of said plurality of waveforms to detect an object. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification