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    • 43. 发明申请
    • Method For Pre-Detecting Responses in a Secondary Radar or Application to the Detection of Mode S Responses
    • 用于预先检测次雷达中的响应或应用于检测模式S响应的方法
    • US20080238758A1
    • 2008-10-02
    • US10575075
    • 2004-09-29
    • Philippe Jean BillaudClaude Rene De Volder
    • Philippe Jean BillaudClaude Rene De Volder
    • G01S13/74
    • G01S13/782G01S13/781G01S13/784
    • The invention relates to a method for pre-detecting responses in a secondary radar. It applies in particular to the detection of mode S responses. An aim of the invention is to process the signals received before decoding the responses so as to allow the detection of mixed responses, and avoid the detection of ghost responses. For this purpose, the invention has in particular as subject a method for pre-detecting responses in a secondary radar, the responses to be pre-detected comprising a message coded by a modulated signal, characterized in that the presence of a signal exhibiting modulation characteristics in accordance with those of a message of a response to be pre-detected is identified; the duration of the signal identified is measured; this duration is compared with a minimum duration, this minimum duration being determined on the basis of the duration of the messages of the responses to be pre-detected.
    • 本发明涉及一种用于预先检测次级雷达中的响应的方法。 它特别适用于模式S响应的检测。 本发明的目的是处理在解码响应之前接收到的信号,以便允许检测混合响应,并避免检测到幽灵响应。 为此目的,本发明特别地作为一种用于预先检测次级雷达中的响应的方法,预先检测的响应包括由调制信号编码的消息,其特征在于存在具有调制特性的信号 根据预先检测到的响应的消息进行识别; 测量所识别信号的持续时间; 将该持续时间与最小持续时间进行比较,该最小持续时间是基于要预先检测的响应的消息的持续时间来确定的。
    • 50. 发明授权
    • Thrust reverser for a high bypass turbofan engine
    • 用于高旁路涡扇发动机的推力反向器
    • US6050522A
    • 2000-04-18
    • US22277
    • 1998-02-11
    • Pascal Noel BrossierPhilippe Jean-Pierre Pabion
    • Pascal Noel BrossierPhilippe Jean-Pierre Pabion
    • F02K1/70F02K1/68B64C25/68B64C9/16F02K3/02
    • F02K1/68Y02T50/671
    • A thrust reverser is disclosed for a high bypass ratio turbofan jet engine having a fan cowling forming an outer boundary of an airflow duct and a jet engine structure including a jet engine cowling. The thrust reverser has a casing affixed to the jet engine structure, the casing having a plurality of attaching yokes. A first thrust reverser flap is pivotally connected to a corresponding one of the attaching yokes and is located rearwardly of an exit of the airflow duct, each first thrust reverser flap having a distal end and being movable between a forward thrust position, and a reverse thrust position. A second thrust reverser flap is pivotally connected to the distal end of a corresponding one of the first thrust reverser flaps and is also movable between a forward thrust position, and a reverse thrust position, wherein the second thrust reverser flaps also redirect air flow emanating from the air flow duct. A linkrod connected to a corresponding one of the second thrust reverser flaps and the corresponding attaching yoke moves the second thrust reverser flap between its forward and reverse thrust positions as the corresponding first thrust reverser flap is moved between its forward and reverse thrust positions.
    • 公开了一种用于具有形成气流管道的外边界的风扇整流罩和包括喷气发动机整流罩的喷气发动机结构的高旁通比涡轮风扇喷气发动机的推力反向器。 推力反向器具有附接到喷气发动机结构的壳体,壳体具有多个附接轭。 第一推力反向器翼片枢转地连接到附接轭的相应的一个,并且位于气流管道的出口的后方,每个第一推力反向器翼片具有远端并且可在前推力位置和反推力 位置。 第二推力反向器翼片枢转地连接到第一推力反向器挡板中的对应的一个的远端,并且还可以在前推力位置和反推力位置之间移动,其中第二推力反向器挡板还重新引导从 气流管道。 连接到相应的一个第二推力反向器挡板和相应的连接轭的连杆,当相应的第一推力反向挡板在其向前和向后的推力位置之间移动时,使第二推力反向器挡板在其向前和反向推力位置之间移动。