アクティブな信号送信ラジオゾンデの方位角および仰角を測定するアンテナ・システムおよび方法

Japanese Patent JP4410684

B2

An antenna system and method for measuring azimuth and elevation angles of an active, signal sending radiosonde. The system includes a first passive antenna group having at least two antenna arrays, the direction pattern of which is wide at least in elevation plane for measuring azimuth angle based on the phase differences between the antenna arrays, a second passive antenna group having at least two antenna arrays, the direction pattern of which is wide at least in elevation plane for measuring the elevation angle based on the phase differences between the antenna arrays and the rotational position of the antenna field, and at least one third antenna having high gain for receiving the telemetry signal, the direction pattern of which element is narrow in azimuth plane and wide in elevation plane. The first and second antenna groups form a solid antenna field which is fixedly tilted in a predetermined elevation position.

JPS6082984	DIRECTION FINDING SIGNAL PROCESSING DEVICE
WO/1996/027822	SYNCHRONIZATION SYSTEM FOR A SHARED CHANNEL COMMUNICATION SYSTEM
WO/2009/096238	RADIO TAG INFORMATION READ DEVICE

Henry Anderson
Karnen, Pentti
Corte, Jarucco
Yatinen, Juhana

JP2004560545A

February 03, 2010

December 16, 2003

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Vaisala Ouiger

G01S3/04; G01S3/46; G01W1/08; H01Q3/04; H01Q3/24; H01Q3/30; H01Q21/06; H01Q21/28

JP8160130A
JP5142320A
JP3266508A
JP3121715U
JP8265033A

US5053784
US5543811
US5486835

Masao Okabe
Nobuaki Kato
Kazuo
Okabe
Shinichi Usui
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama

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