Novel method for estimating SNR of sine signal in communication system simulation 通信系统仿真中估计正弦信号信噪比的新方法
Studies on Signal Detection Algorithms for MIMO Communication System MIMO通信系统信号检测技术研究
Bodywork signal collection and communication system based on CAN bus 基于CAN总线的车身信号采集和通讯系统
This method is suitable for all code rate punctured convolutional codes and practical for information interception and signal analyzing of satellite communication system. 删除卷积码是卫星通信系统中的一种常用信道编码方法。
Signal Processor for Spread Spectrum Communication System 扩频通信系统中的信号处理器
According to the problem that the signal in the communication system is easy to be contaminated by the noise around, a new strong anti-jamming wireless communication based on DSP has been developed. 针对通信系统中信号容易被周围噪声污染的问题,提出了一种基于DSP强抗干扰无线通信。
First, the paper established the system frame of millimeter communication and did much theory research and a lot of experiment validation to front-end signal processing of millimeter communication system. 首先建立了毫米波通信系统框架,对毫米波通信系统前端信号处理作了理论研究和大量实验验证。
A Spectrum-Coding Method for Digital Signal in Narrow-Band Radio Communication System 窄带无线通信中数字信号的频谱编码传输方法
The check-in signal for two-way automatic communication system refers to the signal the user sent to the sub-station. Check-in signal, coming from the users, is displayed as current impulse modulated on the current waveform of the power network load. 双向工频通信系统的入站信号是指从用户端发送给子站的信号,入站信号由调制在电网负载电流波形上的电流脉冲表示,入站信号来自用户端(千家万户)。
Application of Mobius Transformation of Rectangular-pulse Signal in Digital Communication System 矩形脉冲信号的Mobius变换在数字通信中的应用
In order to realize subway mobile communication signal coverage, specialized radio communication system was established. 为了实现地铁移动通信信号的覆盖,建立了专用无线通信系统。
A method of fast carrier recovering for PSK signal in a coherent communication system is introduced in this paper. The theoretic analysis and the experimental result are given, and the further improving method is also given. 本文给出了一种相干通信系统中对移相键控(PSK)调相信号快速恢复载波的方法进行了理论分析,给出了实验结果,并指出了改进的方法。
The bandwidth is different from the bandwidth of the channel transmitting the modulated signal in the modern communication system. 它不同于现代通信工程中传输已调制信号时所需要的信道带宽。这是本文所证明的基本结论。
A Demodulation Approach of IJF-OQPSK Signal for the Burst Communication System 一种突发通信的IJF-OQPSK调制信号解调方法
Signal microcomputer monitoring system network based signal communication information system is introduced in the paper with an elaboration of its structure, functions and characteristics. 介绍了基于信号微机监测系统网络的电务综合管理信息系统,详细说明了系统结构、实现功能及特点。
The modem of analog and digital signal is the center of communication system. 数字与模拟信号的调制解调是通信系统的核心。
Design and Simulation of a Chaotic Signal Generator for Secure Communication System 一种保密通信系统混沌信号产生器的设计及仿真
A wireless audio signal secure communication system based on single-chip computer is introduced. In the proposed system, audio signal wireless secure communication is implemented in a new way of chaotic pulse width modulation, in which data information is represented in the width of pulses. 本文介绍一种基于单片机控制的无线语音保密通信系统,该系统采用一种新的混沌脉冲宽度调制方式,将数字信息隐藏在脉冲的宽度之中,实现语音信号的无线保密通信。
Signal Acquisition and Communication System of Movable Radio Monitoring Station 无线电车载监测站的信号采集与通讯系统
This paper analyzes the characteristics of maglev signal and communication system, emphases are put on the applications of microwave and rail cable for data transmission, and these methods are compared with each other. 分析了磁悬浮列车信号和通信系统的特点,着重分析了微波和轨间电缆在数据传输中的各种应用方法,比较了各种方法的优缺点。
Study on the Signal Communication System of Maglev Trains 磁悬浮列车信号通信系统研究
The Research of Signal Simulator on the Communication System of Land-based Wireless Navigation 陆基无线电导航通信系统信号模拟器的研究
The simulation of the numerical average algorithm in the detection of weak signal and the communication system is analyzed. 针对数字式平均法在微弱信号检测和通信系统中的应用进行仿真。
Clock signal recovery of fiber communication system 光纤通信系统中的时钟信号恢复
Moreover, we have well solved, using a novel method, the problem of synchronization between the original speech signal and the distorted signal resulted from communication system transmission. 并且采用了一些独特的方法较好地解决了原始语音信号与失真语音信号之间的同步问题。
First of all establish security assessment and certification system of China Railway signal& Communication system to ensure secure communications, which is now imminent. 要保证安全通信的实现,首先要建立中国铁路通信系统的安全评估和认证体系,这项工作的进行和完成已经是迫在眉睫。
The main work is just as following: ( 1) The basic concepts of sequence pair, the correlation properties of the sequence pair and the applications of the sequence pair in the signal process and communication system are introduced. 主要工作如下:(1)介绍了序列偶的基本概念和序列偶自相关函数的性质,以及序列偶在信号处理和通信系统中的应用。
In the radio frequency section, directional couplers should be provide the accurate detection signal to communication system in a more wide frequency band and high power state, so we must ensure that have higher precision and accuracy of the coupling. 在射频段,定向耦合器如果要在一个较宽的频带内及大功率状态给通信系统提供准确的检测信号,必须保证有较高的耦合精度及准确性。
Signal receiving is the demodulation and recovery of a transmitted signal in the communication system. 信号接收是对通信系统中的传输信号进行解调和恢复。
Transmission model is fully compatible with the past signal communication system and facilitates the conduct of business from top to bottom signal. 传输模型的能够完全兼容过去通讯系统的接入信号,并能方便的进行上下行业务。