公开(公告)号：US3916409A

公开(公告)日：1975-10-28

申请号：US48089274

申请日：1974-06-19

Applicant: BENDIX CORP

Inventor： SHEAR WAYNE G ,  KUNTMAN DARYAL

IPC: G01S11/08 ,  G08G5/04

CPC classification number: G01S11/08

Abstract: In a time frequency collision avoidance system wherein time is divided into epochs and each epoch is further divided into a predetermined number of time slots, the time of arrival of a range signal after a predetermined time in a time slot is a measure of the range between a local station and a remote station operating in the time slot. The range is measured by strobing a counter, which is set to zero at the beginning of each time slot, by a stable frequency source. Range rate is calculated by memorizing the counter contents and by comparing the memorized contents against counter contents resulting from a range signal received from the same remote station.

Abstract translation: 在时间频率碰撞避免系统中，其中时间被划分成时代，并且每个历元被进一步划分成预定数量的时隙，在时隙中的预定时间之后的距离信号的到达时间是在时隙之间的范围的量度 本地站和在时隙中运行的远程站。 通过在稳定的频率源上选通在每个时隙开头设置为零的计数器来测量该范围。 通过存储计数器内容并通过将存储的内容与从同一远程站接收的范围信号产生的计数器内容进行比较来计算范围速率。