扩谱技术以其一系列独特的优点已应用于许多领域。
Owning to a series of unique advantages, spread spectrum technology has been applied to many corresponding domains.
达到高精度的关键是应用了伪随机码扩谱及差分定位技术。
Spread-spectrum PN code ranging and differential Positioning technology are used to make it possible to reach such accuracy.
本文提出了一种用于提高扩谱通讯系统抗干扰能力的新方案。
A novel scheme for enhancing antijamming capabilities of spread spectrum communication systems is proposed in the paper.
对采用顺序搜索截获法的扩谱雷达的平均截获时间进行了研究。
A new approach of mean acquisition time for spread spectrum radar which is called sequential acquisition method is explored in this paper.
结果表明，该低压电力线扩谱通信系统具有较强的抗干扰能力。
The experiment results indicate that the system has rather strong anti-jamming ability.
提出了一种基于一维无限折叠混沌映射的直接扩谱序列构造方法。
This paper propose one method of constructing direct spreading sequences based on one -dimensional chaotic maps with infinite collapse.
基于该模型，研制了低压电力线的MSK双路扩谱通信电路系统。
The communication system model is set up with MSK and double-pathway spread spectrum for low voltage power line.
介绍了伪随机序列的基本知识以及该理论在扩谱雷达波形设计中的典型应用。
The basic idea of pseudo noise sequence and its typical application in radar signal designing were introduced in this paper.
扩谱通信中一个最基本的任务就是实现本机的伪随机信号与接收的伪随机信号的同步。
In spread-spectrum communication systems, the essential task which has to be performed is the synchronization of receiver pseudonoise (PN) signal with the pseudonoise signal contained in the input.
相位编码扩谱光码分多址（OCDMA）通信系统是近年来OCDMA研究的热点之一。
Phase encode spreading optical code division multiplex access (OCDMA) communication system is one of the research focuses in recent years.
本文对光子晶体光纤扩谱产生的超连续光学频率梳的脉冲-脉冲相位相干性进行了实验研究。
In this paper we reported an experimental study of the pulse-to pulse phase coherence of an PCF generated super-continuum.
为了获得异步ds - CD MA系统的最优扩谱序列，给出了一套用来选取混沌二值序列的优化准则。
In order to generate the optimal spreading sequences for asynchronous DS-CDMA, some optimizing criteria for selecting chaotic binary sequence were proposed.
利用DS -SS信号符号间相位信息，提出了一种可工作于低信噪比下的直接序列扩谱(DS - SS)信号噪声抑制方法。
By exploring the phase information among symbols of the Direct Sequence Spread Spectrum (DS-SS) signal, a novel de-noising approach, used in low signal noise ratio environment, is presented.
因此，该低压电力线扩谱通信系统能较好地抑制低压电力线通信信道的干扰，提高了通信的可靠性，可广泛应用于低压电力线通信领域。
Thus, the system can restrain the noise from low voltage power line and improve communication reliability. It may be widely applied to the communication field using low voltage power line.
文章提出一种基于小波变换的新颖的鲁棒语音扩谱水印算法。算法对原始语音进行离散小波变换，利用扩谱水印技术将水印隐藏到小波域。
This paper proposes a novel robust spread-spectrum (ss) audio watermarking scheme based on DWT, in which a watermark is embedded into wavelet domain which original audio signal is transformed to.
用有限的空时码进行扩谱，并利用较少的发射天线和接收天线进行信号的发射与接收，从而在TD _ SCDMA移动接收端获得最大的扩谱增益。
Base_station USES finite number of space_time codes to spread, and small number of antennas to transmit and receive signal, thus TD_SCDMA mobile terminals can obtain maximal spreading gain.
本课题的研究，验证了循环谱相关技术的有效性，从而为直扩信号的检测提供了新的方法。
The study of this paper effectively improves the performance of the cyclic spectrum correlation technology and puts forward a novel method detecting DS signal.
为了解决正确检测和识别直扩信号的问题，提出一种基于循环谱理论和矩阵变换法的盲估计算法。
In order to solve the problem of direct sequence spread spectrum signals check and recognition, a blind estimate algorithm is proposed, it based on cyclic spectrum theory and matrix transform.
为了解决正确检测和识别直扩信号的问题，提出一种基于循环谱理论和矩阵变换法的盲估计算法。
In order to solve the problem of direct sequence spread spectrum signal's check and recognition, a blind estimate algorithm is proposed, it based on cyclic spectrum theory and matrix transform.
为了解决正确检测和识别直扩信号的问题，提出一种基于循环谱理论和矩阵变换法的盲估计算法。
In order to solve the problem of direct sequence spread spectrum signal's check and recognition, a blind estimate algorithm is proposed, it based on cyclic spectrum theory and matrix transform.
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