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Method of cancelling echoes in a telecommunications system and an echo canceller for the execution of the method
Method of cancelling echoes in a telecommunications system and an echo canceller for the execution of the method
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机译：在电信系统中消除回声的方法和执行该方法的回声消除器
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摘要
A method of canceling echoes in a telecommunications system wherein an exchange of information takes place between a local subscriber and a subscriber at the remote end of a transmission link and at least one subscriber is assigned an echo canceller, the parameters of which are set as a function of an echo delay time (i). The signs of the signal x(t) transmitted by a subscriber and the signal y(t) received by the subscriber can be determined at equidistant time intervals (Ti) so that sign sequences arise which are stored and compared with one another, and in the event of a direct correspondence or a correspondence as a result of an inversion of the sign sequences of the received signal y(t) and of the transmitted signal x(t) the received signal y(t) is detected as an echo and the echo delay time (i) is calculated.
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机译：一种在电信系统中消除回声的方法，其中在本地用户和传输链路远端的用户之间进行信息交换，并且至少一个用户被分配回声消除器，其参数被设置为回波延迟时间的函数（i）。可以在等距的时间间隔（T i ）上确定订户发送的信号x（t）的符号和订户接收的信号y（t）的符号，以便存储符号序列并且彼此比较，并且在直接对应或者由于接收信号y（t）和发射信号x（t）的符号序列的反转而导致对应的情况下，接收信号y（t ）被检测为回声并计算回声延迟时间（i）。
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