It mainly contains the digital modulate system, the SS communication theory and the direct sequence spread spectrum (DSSS) system.
主要是数字调制系统、扩展频谱通信原理和直接序列扩频系统等内容。
In the second part, we study the theory of optical transceiver module in the digital fiber-optical communication system.
在论文的第二部分详细介绍了数字光纤通信系统中的光收发模块的基本原理。
The modern communication theory is used in the analysis of imaging systems. The object information density model is built for analogue and digital image respectively.
应用现代通信理论对成像系统进行了分析，建立了模拟和数字图像的目标信息密度模型。
At first, this paper summaries and analyzes two digital watermarking technology analysis methods which base on communication theory and information theory.
本文首先分析、归纳了基于通信理论和基于信息论的两种数字水印技术分析方法。
Based on the spread spectrum communication theory, combine digital signal-processing chip DSP and FPGA, this article researches and designs the receiver system for regional radio navigation.
本课题以扩频通信为理论基础，结合目前广泛使用的数字信号处理芯片DSP和FPGA，研究了区域无线电导航系统接收机数字信号处理平台。
Information hiding technology is a rising subject involved with information theory, Digital Signal Processing, Cryptography, Digital communication.
信息隐藏技术是一门多学科交叉的新兴学科，它涉及到了信息论、数字信号处置、密码学和数字通信。
This paper designed a full digital modulator and a full digital demodulator for the millimeter wave communication machine based on the soft radio theory.
本文利用软件无线电的思想为毫米波保密通信机设计了一个全数字的调制解调器。
Using the theory of communication and the science of culture, the present paper studied the performance and causes of the digital divide in traditional Chinese ethnic sports culture.
运用传播学、文化学理论等，对中国民族传统体育文化数字鸿沟的表现与成因进行研究。
This algorithm, which based on relational databases' character and the number of quantitative data's effective bits, combines with the theory of error correction in the field of digital communication.
理论分析和实验结果表明，该算法具有隐蔽性好，水印恢复不需要原始数据库，水印的鲁棒性及可嵌入的信息量可以通过调整参数取值进行调节等特点。
This algorithm, which based on relational databases' character and the number of quantitative data's effective bits, combines with the theory of error correction in the field of digital communication.
理论分析和实验结果表明，该算法具有隐蔽性好，水印恢复不需要原始数据库，水印的鲁棒性及可嵌入的信息量可以通过调整参数取值进行调节等特点。
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