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调制识别
相关语句
  modulation identification
    In Pulse Modulation Identification Technique by the Instant Frequency
    基于瞬时频率的脉内调制识别技术
短句来源
  “调制识别”译为未确定词的双语例句
    Algorithm for classification of MPSK signals in multipath channel environments
    多径信道中MPSK信号的调制识别算法
短句来源
  相似匹配句对
    In Pulse Modulation Identification Technique by the Instant Frequency
    基于瞬时频率的脉内调制识别技术
短句来源
    Analysis of Modulation Signal and Automatic Recognition
    脉内调制信号的分析与自动识别
短句来源
    Identification technology
    识别技术
短句来源
    Recognition of a Hovering Helicopter
    悬停直升机的识别
短句来源
    Analysis on intersymbol interference of digital modulation system
    数字调制系统码间干扰分析
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This paper discusses a method which uses laser techniques to distinguish targets between the enemy and Ourselves and a method which is used to modulate echowave signals.An all-direction detective system is composed of a laser transmitter and a receiver who are put on an image Stabilizing turntable and a group of laser detectors and reflecting prisms in multi-eye style. When this system receives the inquireing codes from inquireing direction(friend direction) ,the modulatdr in front of the reflecting prism is...

This paper discusses a method which uses laser techniques to distinguish targets between the enemy and Ourselves and a method which is used to modulate echowave signals.An all-direction detective system is composed of a laser transmitter and a receiver who are put on an image Stabilizing turntable and a group of laser detectors and reflecting prisms in multi-eye style. When this system receives the inquireing codes from inquireing direction(friend direction) ,the modulatdr in front of the reflecting prism is controlled to reflect identified codes from the reflecting prism. Then these identified codes are received and distingushedin inquireing direction (friend direction).This system is very useful for distinguishing between moving targets from air to air,air to ground, and ground to ground etc.

本文论述了一种采用激光技术实现敌我目标识别的工作原理和回波信号调制方法。在这个系统中,激光发射和接收机安装在稳像转台上;激光探测和反射棱镜组是一个复眼式全方位探测系统,当它接收到询问方(友方)发来的询问码时,控制反射棱镜前方的调制器,由反射棱镜返回调制的识别码,再由询问方(友方)接收加以判别。本系统适用于空—空、空-地,地—地等运动目标间的敌我识别。

Radar signal in pulse modulation identification is the important content of radar reconnaissance. Multiple type modulation signals can be identified and the modulation parameters can be extracted by the instant frequency identification technique. Under certain signal to noise ratio, this method has high identification ratio. It is suitable for high speed realization in the radar reconnaissance digital receiver, because it has a simple algorithm.

雷达信号脉内调制识别是雷达侦察的一个重要内容,基于瞬时频率的识别技术可以实现对多种调制类型信号的识别及参数提取,该方法在一定信噪比条件下有较高的正确识别率,算法也较为简单,适合在雷达对抗侦察数字接收机上高速实现。

The phase differences for different kinds of modulated signals are discussed and the modulation recognition methods for BPSK and QPSK signals are developed. Simulation results demonstrate the effectiveness of the modulation recognition approaches.

根据不同调制信号相位差分的变化规律,文章提出了基于相位差分峰值幅度比较的BP SK/QPSK调制识别方法。仿真结果验证了调制识别方法的有效性。

 
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