signal of communication

Analyzing the Loss Factors of Atmosphere Laser Communication and Modeling the Signal Channel

大气激光通信影响因素分析及信道建模

Infrared touch screen software system has been developed based on the embedded real-time kernel μ COS-ⅱ. The program mainly contains the task of digital data collection for the analog signal of infrared receiver, the task of coordinate information of computing and the USB data communication.

红外触摸屏的软件系统是在精简的嵌入式实时内核μC/OS-Ⅱ基础上进行开发的，主要完成了红外接收管信号的数据采集、坐标信息的计算处理、USB通信等任务。

This paper introduced a communication signal process system based on Matlab. The system consists of the input and spectral analysis module, filter module, coding and decoding module and communication simulating module.

介绍了一个采用Matlab程序设计语言完成的通信信号处理系统，该系统主要由信号的输入及频谱分析模块、滤波器模块、编解码模块以及通信仿真模块组成。

Signal acquisition and processing system consists of temperature testing circuit, high speed electromagnetic valve drive circuit, pressure signal A/ D circuit and serial communication circuit and cam position acquisition circuit. Following the system function requirements, several important microchips were selected.

数据采集部分的设计主要包括温度测量模块设计、串口通讯电路设计、AD转换电路设计、凸轮位置检测电路设计以及排油电磁阀控制电路设计，同时根据系统参数要求，对关键芯片进行了选型。

The natural phenomena and laws of sun-noise interference which can interrupt the receiving signal of communication broadcast satellite television receiving station are set forth in this article.

本文阐述了太阳噪声干扰使通信广播卫星接收站信号中断的自然现象及规律，导出日凌中断与通信广播卫星定点及卫星接收站，位置关系的数学表示式。

In order to overcome Intersymbol interference caused by distortion, in a communication system often use a channel Equalization of signal processing techniques.

为了克服ISI（码间干扰）引起的失真，在一个通信系统中常常使用信道均衡的信号处理技术。

This method plays an important role in the detection of communication signal such as multi-frequency modulation signal and time-frequency code signal.

它可以把多个正弦信号相干累加到一条谱线上，从而可以在很低信噪比下有效检测信号，在多频率调制和时频二维编码等通信信号检测上有重要应用价值。

We often use SAW tap delay line to catch the phase of spread-spectrum sequence in Spread-spectrum communication system. BPSK signal modulated by spread-spectrum sequence can be made by using SAW tap delay line.

在扩展频谱通信系统中，常用SAW抽头延迟线来实现扩频序列的捕捉，利用SAW抽头延迟线可以生成被扩频序列调制的中频BPSK信号。

A chaos signal is a deterministic signal but has highly unpredictable and random nature. Its unique characteristics make it very attractive in the application area of secure communication.

混沌信号是一个确定性的信号，但是它却具有很高的不可预测性和随机性，这两个独特的性质促使它在保密通信领域具有很高的吸引力和应用价值。

We review our recent work on the highly tailorable physical properties of silicon waveguides for communication and signal processing applications, using slot structures.

我们回顾了我们近期关于采用槽孔结构裁减硅波导在通信和信号处理方面的物理属性的工作。

Implement of Signal Generator With Multi-carrier in Underwater Acoustic Communication Based on DDS

基于DDS的多载波水声通信信号发生器的实现