公开(公告)号：US5194869A

公开(公告)日：1993-03-16

申请号：US916943

申请日：1992-07-20

申请人： Jiro Kochiyama ,  Makoto Miwada ,  Toshiaki Sato ,  Takuji Morita ,  Teruo Fujiwara ,  Shoji Kaneda ,  Kazutaka Maruta ,  Hajime Ogawa

发明人： Jiro Kochiyama ,  Makoto Miwada ,  Toshiaki Sato ,  Takuji Morita ,  Teruo Fujiwara ,  Shoji Kaneda ,  Kazutaka Maruta ,  Hajime Ogawa

IPC分类号： B64G3/00 ,  F41G3/00 ,  G01S11/02 ,  G01S11/08 ,  G08C17/02

CPC分类号： G01S11/08 ,  G08C17/02

摘要： A ranging method for measuring the flight distance of a flight object is implemented by means of a simple system construction. The ranging method is also capable of continuing ranging even if an interruption occurs in data transmission. The ranging method comprises the steps of inserting ranging pulses in a telemeter signal transmitted from a transmitting apparatus provided on the flight object, separating and extracting a ranging pulse from a telemeter signal received by a receiving apparatus provided on the ground side, obtaining a time difference between the ranging pulse and a reference clock signal generated in the receiving apparatus on the basis of a time reference equal to that of the transmitting apparatus (clock signal periods t1 and t2 of both time references are equal), and calculating the flight distance. Since there is no need to provide a transponder or the like on the flight object nor to provide a ranging-tracking system on the ground side, it is possible to realize a simple system construction. Since the ranging pulses are transmitted in the state of being contained in the telemeter signal, it is not necessary to independently prepare ranging-signal transmiting means. In addition, since the telemeter signal can be restored at any time on the ground side, it is possible to prevent ranging from being made impossible due to the interruption of transmission of the signal.

摘要翻译： 用于测量飞行物体的飞行距离的测距方法是通过简单的系统结构实现的。 即使在数据传输中发生中断，测距方法也能够继续测距。 测距方法包括以下步骤：将测距脉冲插入到从设置在飞行对象上的发射装置发送的遥测仪信号中，从设置在地面侧的接收装置接收的遥测仪信号中分离并提取测距脉冲，获得时差 基于等于发送装置的时间基准（两个时间基准的时钟信号周期t1和t2相等），在接收装置中产生的测距脉冲和参考时钟信号之间，并计算飞行距离。 由于不需要在飞行对象上提供应答器等，也不需要在地面侧设置测距跟踪系统，因此可以实现简单的系统构造。 由于测距脉冲以包含在遥测信号中的状态发送，所以不需要独立地准备测距信号发送装置。 此外，由于可以在地面侧的任何时间恢复遥测信号，所以可以防止由于信号的发送中断而不能进行测距。