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1·Ocean Leo: Helicopter. This is M/V Ocean Leo. I am now making identification signal, over.

直升机： “海洋里奥”船，这是直升机。请通过向我打信号灯以识别你船。请讲。

2·The invention discloses a back-off method and a back-off device, and a method and a device for detecting a radio-frequency identification signal state, and belongs to the field of communications.

本发明公开了一种退避方法和装置及检测射频识别信号状态的方法和装置，属于通信领域。

3·If a special tag-reader is waved near the arm, a radio signal prompts the chip to transmit an identification number which is used to call up information about the wearer in a computer database.

当专用标记阅读器在手臂附近晃动，无线电信号就会激活微芯片传送识别码，从而调出电脑数据库中该客户信息。

4·The automatic modulation identification for communication signals is a still important problem in the intercepted signal processing.

通信信号的自动调制识别在截获信号处理方面是一个十分重要的课题。

5·Thus, the basic important step of modulation identification is how to specify and extract signal features.

所以，如何选定并提取信号的特征便成为调制识别的基本环节。

6·The classification and identification of communication signal is a typical statistical pattern identification.

通信信号的分类识别是一种典型的统计模式识别问题。

7·The objective of automatic modulation identification is to decide the modulation type and estimate the modulation parameters without any priori knowledge about the signal information content.

自动调制识别的目的就是在未知调制信息内容的前提下，判断出通信信号的调制方式，并估计出相应的调制参数。

8·The blind inverse identification arithmetic is proposed firstly, and then the input source signal is restored by the deconvolution method using the identified system model.

首先提出了一种解决盲辨识问题的算法，然后利用辨识得到的系统模型对源输入信号进行反卷积恢复。

9·The objective of automatic modulation identification is to decide the modulation type and estimate the modulation parameters without any priori knowledge about signal contents.

自动调制识别的目的就是在未知调制信息内容的前提下，判断出通信信号的调制方式，并估计出相应的调制参数。

10·The identification of modal parameters of a vibration system by means of random response and free response signal is discussed.

本文讨论利用振动系统的随机响应和自由响应信号识别系统模态参数问题。