利用这些结果可有效提高混沌扩频通信系统的性能。
The performance of chaotic spread-spectrum communication systems can be improved by employing these formulas.
误码率模型是水声扩频通信系统性能的关键指标之一。
The error rate model is one of the key indexes of underwater acoustic spread spectrum communications system.
并对基于序列偶的扩频通信系统设计方案进行了讨论。
The design scheme of spread-spectrum system based on sequence pairs is discussed.
扩频序列设计是直接序列扩频通信系统的关键课题之一。
Spreading sequences design is one of the key task in the direct-sequence spread spectrum communication systems.
提出了直接序列扩频通信系统中抑制窄带干扰的一种算法。
An algorithm for the suppression of narrowband interference in the direct sequence spread-spectrum (DSSS) systems is presented.
扩频通信系统中宽带干扰的抑制技术越来越引起人们的重视。
The rejection techniques of broadband interference have caused more and more attention in Spread Spectrum(SS) communication systems.
本文对并行组合扩频通信系统的关键技术做了一些有意和必要的探讨。
This is an instructive discuss for the key technique of PC/SS system.
干扰抑制是提高直接序列（DS）扩频通信系统抗干扰能力的重要手段。
The anti jamming capability of DS/SS communications systems can be enhanced significantly by interference suppression techniques.
论文对电力线通信、扩频通信系统和FPGA设计方法等进行了相关研究。
The power line communication, the ss communication system and the design technique of FPGA have been discussed in this thesis.
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.
对于特种小卫星扩频通信系统，衰落及干扰状况是系统设计时必须考虑的重要方面。
When designing a special type small satellite (STSS) communication system with spread-spectrum technology, the fading and the interference must be considered carefully.
在敌方有意的窄带强干扰下，扩频通信系统可以利用时域自适应滤波算法来抑制干扰。
Adaptive filtering algorithms can be used on time domain to rejection Narrow-band interference (NBI) of man-made of enemy in DSSS.
根据扩展频谱方式的不同，扩频通信系统分为：直接序列扩频、跳频扩频和混合扩频。
According to different ways of spread spectrum, spread spectrum communication systems are divided into: direct sequence spread spectrum, frequency-hopping spread spectrum and hybrid spread spectrum.
在直接序列扩频通信系统的扩频增益受限时，强功率的窄带干扰对系统性能影响较大。
In direct sequence spread spectrum communication system when the spreading gain is limited, the performance of the communication system will be impacted by the strong power of narrowband interference.
本课题研究的主要目的就是利用现代数字技术对扩频通信系统中的中频接收信号进行相关处理。
Thepurpose of this paper is that taking use of modern digital technical applyat correlative processing in the IF signal of spread-spectrum system.
在存在窄带干扰时，扩频通信系统的性能可以通过使用各种不同的抗干扰滤波器来进一步提高。
In the presence of narrow-band interference (NBI), the performance of direct spread-spectrum systems (DSSS) can be improved by using various interference rejection filters.
针对扩频通信系统中的伪码同步问题，分析了基于匹配滤波捕获跟踪算法的伪码数字化同步方案。
In consideration of the synchronization of PN code in spread spectrum communication system, a acquisition and track scheme of PN code based on the theory of match filter is analyzed.
直接系列扩频通信系统的频谱扩展是借助于扩频函数而实现的，典型的扩频函数就是伪随机序列码。
Spectra expanding of Spread spectrum communication system makes use of the spread spectrum function to realize, the typical spread spectrum function is pseudo random sequence code.
在直接序列扩频通信系统中，假设敌方能够逐个比特地检测到整个PN序列，并产生一个调制的转发干扰。
In direct sequence spread spectrum communication system, enemy is assumed to detect whole PN sequence chip by chip and a modulated retransmitted interference is created.
扩频通信系统中，保证本地产生的PN序列与接收信号中的PN序列完全同步，是正确解调信息的关键点。
In the system of spread-spectrum communication, the essential point of demodulating information is to ensure the synchronism of local PN sequence and PN sequence of received signals.
捕获技术是跳码扩频通信系统的关键技术之一，所以我们有必要研究跳码扩频通信系统合理、可行的捕获方法。
Acquisition technology is one of the key technologies of CH-DSSS system, so we need to study reasonable and feasible acquisition methods of CH-DSSS communication system.
提出了一种用于直接扩频通信系统（DSSS）快速捕获，新型组合声表子波（SAW）卷积器序列搜索码捕获方案。
A new combined Surface Acoustic Wave (SAW) convolver, or a serial searching code acquisition scheme for direct sequence spreading spectrum (DSSS) communication system is presented.
论文对扩频通信系统和FPGA设计方法进行了相关研究，尤其是对FPGA设计中的一些非常重要的严格同步问题进行了研究。
The design technique of FPGA related to ss communication system has been discussed in this thesis. Especially, the strict synchronous which is important in FPGA design has been discussed.
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。
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.
我们希望本文的证明有助于推动扩频通信在煤矿系统中的应用研究。
We hope that this article will be helpful for giving impulse to the research of spread-spectrum communication used in coal mine system.
序列信号可以模拟白噪声，广泛应用于扩频通信、数字加密、数字系统测试等领域。
The M-sequences signal can simulate the white noise, which has been widely applied in the fields of spread spectrum communication, digital cryptography, digital system test and so on.
对于任何一种扩频通信pN码捕获系统来说，捕获性能在很大程度上取决于检测概率和虚警概率。
For any PN code acquisition system in spread spectrum communications, the acquisition performance is largely dependent on the probabilities of detection and false alarm.
通过对扩频通信和电力线载波通信特点的分析，设计实现了一套远程抄表系统。
Through the analysis of the spread spectrum and power line carrier spectrum, the authors design a set of remote reading system.
该系统采用过零点扩频通信方案大大提高了通信成功率，使用主动式看门狗电路提高系统的电磁兼容性。
The proposed system can improve which improving the reliability of communication by zero-crossing spread spectrum technology and active watchdog technology.
该系统采用过零点扩频通信方案大大提高了通信成功率，使用主动式看门狗电路提高系统的电磁兼容性。
The proposed system can improve which improving the reliability of communication by zero-crossing spread spectrum technology and active watchdog technology.
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