System and method for target signature calculation and recognition
First Claim
10. A system for detecting and identifying a target object, comprising:
- one or more transmitters for transmitting signals;
an antenna for receiving direct signals from the transmitters and reflected signals reflected by the target object;
a signal processing subsystem connected to the antenna for processing the signals received by the antenna;
a signature processing subsystem for calculating target object signature information using a reflected signal amplitude as a function of a bistatic aspect angle; and
a display subsystem for selectively displaying the target object signature information.
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Accused Products
Abstract
The present invention is directed to a system and method for the identification of a target object in PCL radar applications. The disclosed embodiments describe the systems and methods used in the identification of a target object from the collection of data representing specific target object features, such as velocity, altitude, fuselage length, wing length, or wing sweepback angle, and the comparison of selected target object features with a database of known aircraft features. The present invention also provides for the calculation of feature dimensions, such as the fuselage length, wing length, or wing sweepback angle from measurements associated with a peak signal lobe as a function of a bistatic aspect angle.
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Citations
43 Claims
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10. A system for detecting and identifying a target object, comprising:
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one or more transmitters for transmitting signals; an antenna for receiving direct signals from the transmitters and reflected signals reflected by the target object; a signal processing subsystem connected to the antenna for processing the signals received by the antenna; a signature processing subsystem for calculating target object signature information using a reflected signal amplitude as a function of a bistatic aspect angle; and a display subsystem for selectively displaying the target object signature information. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for detecting and identifying a target object using signals transmitted by one or more transmitters, comprising the steps of:
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detecting a transmitted signal from the one or more independent transmitters; detecting the transmitted signal reflected by a target object; calculating the wavelength of the reflected signal; calculating an included angle; calculating a bisector aspect angle; and calculating the length of a target object feature based on the wavelength as a function of the bisector aspect angle. - View Dependent Claims (19, 20, 21)
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22. A method for detecting and identifying a target object using signals transmitted by one or more transmitters, comprising the steps of:
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detecting a transmitted signal from the one or more independent transmitters; detecting the transmitted signal reflected by a target object; calculating a wavelength of the reflected signal; calculating a heading change angle; and calculating the length of a target object feature based on the wavelength and the heading change angle.
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23. A system for identifying a target object using signals from one or more transmitters, comprising:
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a signal processing unit for calculating data representing specific features of a target object, including calculating a feature dimension of the target object using a received peak lobe as a function of a bistatic aspect angle and a heading change between −
3 dB points of the received peak lobe; anda display element for displaying identification data associated with the target object. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 9, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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33-1. The system of claim 27, wherein the one or more signal processors further comprise one or more wideband signal processors.
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34. A method for identifying a target object, comprising the steps of:
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detecting and tracking the target object; calculating signature data for the target object; and identifying the target. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification