[특허]Imaging methods and systems for concealed weapon detection

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-007/41
출원번호	US-0383980 (2003-03-07)
발명자 / 주소	Singh, Donald R. Morellas, Vassilios
출원인 / 주소	Honeywell International Inc.
대리인 / 주소	Fredrick Kris T.
인용정보	피인용 횟수 : 44 인용 특허 : 16

초록 ▼

Imaging methods and systems for concealed weapon detection are disclosed. In an active mode, a target can be illuminated by a wide-band RF source. A mechanically scanned antenna, together with a highly sensitive wide-band receiver can then collect and process the signals reflected from the target. I

Imaging methods and systems for concealed weapon detection are disclosed. In an active mode, a target can be illuminated by a wide-band RF source. A mechanically scanned antenna, together with a highly sensitive wide-band receiver can then collect and process the signals reflected from the target. In a passive mode, the wide-band receiver detects back-body radiation emanating from the target and possesses sufficient resolution to separate different objects. The received signals can then be processed via a computer and displayed on a display unit thereof for further analysis by security personnel.

대표청구항 ▼

1. An imaging method for concealed weapon detection, said method comprising the steps of:illuminating a target for concealed weapon detection thereof utilizing an illumination module that includes at least one wide-band RF source and at least one wide-beam antenna; anddetecting said target utilizing

1. An imaging method for concealed weapon detection, said method comprising the steps of:illuminating a target for concealed weapon detection thereof utilizing an illumination module that includes at least one wide-band RF source and at least one wide-beam antenna; anddetecting said target utilizing a scanning module that includes at least one scanning antenna in association with at least one wide-band receiver for collecting and processing at least one signal reflected from said target as a result of said illumination of said target for concealed weapon detection thereof; andconfiguring said at least one wide-band receiver of said scanning module to possess a resolution that differentiates between concealed weapons and other objects of said target. 2. The method of claim 1 further comprising the steps of:processing and displaying data scanned from said target by said scanning module, wherein said data includes information concerning objects of said target, which are potentially concealed weapons. 3. The method of claim 1 further comprising the step of:detecting black-body radiation from said target utilizing said at least one wide-band receiver of said scanning module, wherein said black-body radiation is detectable as a result of said illumination of said target. 4. The method of claim 1 further comprising the step of:operating said at least one wide-band RF source of said illumination module in a radio frequency range of 80 GHz to 150 GHz. 5. The method of claim 1 wherein said scanning module detects signals reflected from said target at approximately 140 GHz. 6. The method of claim 1 further comprising the step of:configuring said at least one wide-band receiver of said scanning module to comprise a millimeter wide receiver. 7. The method of claim 6 further comprising the step of:configuring said millimeter wide receiver to comprise a wide-band balanced mixer associated with a local oscillator, a plurality of IF amplifiers and at least one detector in a low-noise heterodyne arrangement. 8. The method of claim 1 further comprising the step of:fixing said at least one wide-beam antenna to said at least one wide-band RF source. 9. An imaging method for concealed weapon detection, said method comprising the steps of:illuminating a target for concealed weapon detection thereof utilizing an illumination module that includes at least one wide-beam antenna fixed to at least one wide-band RF source;operating said at least one wide-band RF source of said illumination module in a radio frequency range of 80 GHz to 150 GHz;scanning said target at a radio frequency of 140 GHz utilizing a scanning module that includes at least one scanning antenna in association with at least one wide-band receiver for collecting and processing at least one signal reflected from said target as a result of said illumination of said target for concealed weapon detection thereof;processing and displaying data scanned from said target by said scanning module, wherein said data includes information concerning objects of said target, which are potentially concealed weapons;detecting black-body radiation from said target utilizing said at least one wide-band receiver of said scanning module, wherein said black-body radiation is detectable as a result of said illumination of said target; andconfiguring said at least one wide-band receiver of said scanning module to possess a resolution that differentiates between concealed weapons and other objects of said target. 10. An imaging system for concealed weapon detection, said system comprising:an illumination module for illuminating a target, wherein said illumination module includes at least one wide-band RF source and at least one wide-beam antenna for illumination of said target; anda scanning module for scanning said target, wherein said scanning module includes at least one scanning antenna in association with at least one wide-band millimeter-wave receiver for collecting and processing at least one signal re flected from said target as a result of said illumination of said target by said illumination module for detection of a concealed weapon of said target. 11. The system of claim 10 further comprising:a processing and display module for processing and displaying data regarding objects of said target, wherein said processing and display module includes an electronics interface for electronically interfacing data communication between said scanning module and a computer having a display unit for display of said data. 12. The system of claim 10 wherein said at least one wide-band millimeter-wave receiver of said scanning module detects back-body radiation from said target as a result of said illumination and possess a resolution necessary to differentiate between said concealed weapon and other objects of said target. 13. The system of claim 10 wherein said at least one wide-band RF source of said illumination module provides a radio frequency source in a range of 80 GHz to 150 GHz. 14. The system of claim 10 wherein illumination module illuminates said target at a radio frequency of approximately 140 GHz. 15. The system of claim 14 wherein said scanning module detects signals reflected from said target at a radio frequency of approximately 140 GHz as a result of said illumination of said target by said illumination module. 16. The system of claim 10 wherein said wide-band receiver of said scanning module comprises a millimeter-wave receiver. 17. The system of claim 16 wherein said millimeter-wave receiver comprises a wide-band balanced mixer associated with a local oscillator, a plurality of IF amplifiers and at least one detector in a low-noise heterodyne arrangement. 18. The system of claim 10 wherein said at least one wide-beam antenna is fixed to said at least one wide-band RF source. 19. The system of claim 10 wherein said illumination module comprises a voltage controlled oscillator that provides an output in a range of approximately 10 mW to 30 mW.

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