APPARATUS AND METHOD FOR RAPID DETECTION OF OBJECTS WITH TIME DOMAIN IMPULSIVE SIGNALS
First Claim
1. A method for detecting objects of interest in a target area using ultra wide band (UWB) RF signals, comprising the steps of:
- a) probing the target area with the ultra wide band RF impulsive signals;
b) receiving return signals from the target area;
c) processing the return signals by decomposing the return signals into time slice feature data;
d) designating coordinates of a known object of interest whose preexisting profile has been stored in a database;
e) determining the probability of detection of a known object of interest based upon the magnitude of a vector which represents the distance between the time slice feature data and the coordinates of a known object of interest having a preexisting profile; and
f) displaying the existence of the known object, when the magnitude of the vector is less than a predetermined amount.
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0 Petitions
Accused Products
Abstract
A method and system are disclosed for detecting objects of interest in a target area using ultra wide band (UWB) RF signals. A transmitter and antenna array generate ultra wide band RF impulsive signals that are used to probe a target area that may include an object of interest. An antenna and a signal processor receive return signals from the target area and process the return signal to generate a set of coordinates. The coordinates of the processed return signals are compared to coordinates of known objects in a pre-existing database to determine whether there is a match between the return signal and a known object. When there is an indication of a match, the existence of the known object is displayed to an operator of the system.
29 Citations
14 Claims
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1. A method for detecting objects of interest in a target area using ultra wide band (UWB) RF signals, comprising the steps of:
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a) probing the target area with the ultra wide band RF impulsive signals;
b) receiving return signals from the target area;
c) processing the return signals by decomposing the return signals into time slice feature data;
d) designating coordinates of a known object of interest whose preexisting profile has been stored in a database;
e) determining the probability of detection of a known object of interest based upon the magnitude of a vector which represents the distance between the time slice feature data and the coordinates of a known object of interest having a preexisting profile; and
f) displaying the existence of the known object, when the magnitude of the vector is less than a predetermined amount. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for detecting objects of interest in a target area using ultra wide band (UWB) RF signals, comprising the steps of:
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a) a transmitter for probing the target area with the ultra wide band RF impulsive signals;
b) a receiver for receiving return signals from the target area;
c) a signal processor for processing the return signals by decomposing the return signals into time slice feature data;
d) means for designating coordinates of a known object of interest whose preexisting profile has been stored in a database;
e) means for determining the probability of detection of a known object of interest based upon the magnitude of a vector which represents the distance between the time slice feature data and the coordinates of a known object of interest having a preexisting profile; and
f) a display for displaying the existence of the known object, when the magnitude of the vector is less than a predetermined amount. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification