然后详细介绍了自编码直接序列扩频通信的原理、自编码扩频序列的产生方法及其统计特性。
Then the principle of SESS system is introduced. The generation of the SESS spreading code and its characteristics are also analyzed.
采用复合编码扩频技术、隐分集技术以及多媒体数据压缩技术，实现了空地大容量高速、抗干扰多媒体数据传输。
Hybrid spread spectrum, rake and multiple data compressing technology are used to realize air to ground mass high-speed, anti-jamming multiple data transmission.
信道编码是扩频通信的关键技术之一，是解决信号在信道中无差错传输的技术。
Channel Encoding technology is one of the key technology in SSC. It aims to realize the non-error transmission of the signal.
首先研究基本的发射机，包括卷积编码、交织、扰码、沃尔什调制、正交扩频以及基带滤波。
Firstly the basic transmitter, including convolutional encoding, interleaving, scrambling, Walsh modulation, quadrature spreading and baseband filtering was studied.
当采用前向纠错编码时，扩频系统多址容量会明显提高。
The multiple access capacity increases greatly when coded systems are used.
分析扩频码的产生和序列特点，给出的编码序列搜索，信息解码的解码方法。
The methods for searching the coded sequences and decoding the information are given.
本文给出了无线电测控系统中扩频和测距编码的设计方法。
A design of spread spectrum and ranging code in radio measurement and its control system are given in the paper.
线性调频调制的优点是：不须在接收端添加均衡滤波器，也不须进行扩频编码。
Merits of the Linear FM are that it is not necessary to have an equalizer or the spread spectrum code modulation.
说明：编码器生成M序列进行通信，接收后再进行解码。用于扩频率通信中。通过状态机实现。
The encoder generates the m sequence for communication, the receiver and then decoded. For the expansion of the frequency communications. Through the state machine implementation.
被高速伪随机码调制的扩频信号，其伪随机码是具有随机编码信号特征的周期信号。
The spread spectrum (SS) signal is modulated by high-rate pseudo noise code, and belongs to typically periodic signal.
准确、快速的扩频码同步是编码LPI雷达系统实用的前提。
Quick and accurate acquest of signal is critical for the utility of an LPI radar.
近年来，人们对于自编码在扩频通信系统中应用进行了大量研究并取得丰富成果。
In recently years, people have paid much attention to the research of self-encoded in the spread spectrum communication system and gotten certain achievements.
发送部分介绍了中频发送的差分编码、扩频、BPSK调制等技术；
The transmitter unit mainly consisted of differential encoding, spread spectrum and BPSK modulation and so on.
论文分析了卷积编码方法和扩展频谱方法，并详细论述了编码和扩频的软件实现方法，给出了程序的流程图和相关程序。
This paper analyses convolution encoding method and spreading spectrum method and discusses emphatically its implementation and demonstrates the program flow chart.
在发送端，主要研究了差错控制编码，波形成形、扩频和8PSK调制等关键技术；
On the sending end, the paper focuses on Error Control Coding, Waveform Shaping, Spread Spectrum and 8PSK modulation, etc.
它动态地把信源序列转化成高斯白噪声分布的数据流，再通过量化、平衡编码进行序列优化，以得到所需的扩频码。
It transfers the data source to dynamic Gauss White noise. Then quantizing and optimizing the noise, we can get the final spread sequence.
Ÿ 能承担本科生《通信原理》、《卫星通信》及《移动通信》课程及研究生《信息论与编码》、《扩频通信》及《通信网理论与技术》课程的教学工作。
Construct the course and experiment courses for undergraduate in "Remote Sensing Science and Technology" and the course for graduate in "Signal and Information Processing".
Ÿ 能承担本科生《通信原理》、《卫星通信》及《移动通信》课程及研究生《信息论与编码》、《扩频通信》及《通信网理论与技术》课程的教学工作。
Construct the course and experiment courses for undergraduate in "Remote Sensing Science and Technology" and the course for graduate in "Signal and Information Processing".
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