[특허]Method and system for the sequential adaptive deterministic calibration of active phased arrays

[미국특허] Method and system for the sequential adaptive deterministic calibration of active phased arrays 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-007/40
출원번호	US-0434810 (1995-05-04)
발명자 / 주소	Fenner David K. (Columbia MD)
출원인 / 주소	Northrop Grumman Corporation (Los Angeles CA 02)
인용정보	피인용 횟수 : 51 인용 특허 : 0

초록 ▼

Apparatus for calibrating a phased array antenna having a plurality of active modules and a test manifold. An RF antenna, which is both a transmitting and receiving antenna is positioned at a far field range from the antenna to be calibrated. A receiver is connected to the output of the far field receiving antenna and the output of the test manifold of the antenna to be calibrated for the transmit calibration and a transmitter is connected to the far field transmitting antenna and the test manifold for a receive calibration, a command phase and amplitude for each steering angle of each module of the antenna being calibrated. The phase and amplitude data from the test manifold is compared with the phase and amplitude data of the far field range to obtain an error signal, and the error signal is combined with the command amplitude and phase iteratively until the error signal is minimized for each module of the antenna.

대표청구항 ▼

A method of calibrating a phased array antenna having a plurality of active modules, and a test manifold, comprising the steps of: collecting, for each module of the array in sequence, first phase and amplitude data of radar pulses applied to a receiver from a far field range; collecting, for each module of the array in sequence, second phase and amplitude data of said radar pulses applied to a receiver from the test manifold; determining a command phase and amplitude for each steering angle of each module; comparing the phase and amplitude data from the test manifold with the phase and amplitude data from the far field range to obtain an error signal; and combining the error signal with the command amplitude and phase iteratively until the error signal is minimized.

이 특허를 인용한 특허 (51) 인용/피인용 타임라인 분석

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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Method and system for the sequential adaptive deterministic calibration of active phased arrays 원문보기