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.
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。
It is studied that the code acquisition technology of direct sequence spread spectrum system in LEO satellite communication.
研究了用于低轨卫星通信的直接序列扩频系统的码捕获技术。
The generating of pseudo random sequence is one of the key subjects to realize the spread spectrum technique upgrade for BPC low frequency time code radio station.
伪随机序列的产生是实现BPC低频时码发播台扩展频谱技术升级的一个重要环节。
The design of spread spectrum code sequence is constructing pseudo-random sequence which is possessed of different structure and good performances in order to satisfy the need of CDMA system.
扩频码序列的设计就是构造不同结构的具有良好特性的伪随机序列来满足CD MA系统的要求。
Two new methods are developed for blind estimation for long-code chaotic spread spectrum sequence.
针对长码实值混沌直扩系统，提出了两种盲解扩算法。
The design of the PN code acquisition of the Direct Sequence Spread Spectrum(DSSS) system for a Unmanned Aerial Vehicle(UAV) TT&C System is described in this paper.
讨论一种用于某无人机直序扩频通信测控系统的PN码捕获方案。
A new method of blind estimation for short-code chaotic spread spectrum sequence is proposed, which is based on principal component analysis (PCA) and has good performance at low SNR condition.
针对短码实值混沌直扩系统，提出了一种基于主元分析的算法，实现了在低信噪比下对直扩序列的盲估计。
In this paper, a blind despreading algorithm is proposed for the synchronous multi-user long-code Direct Sequence spread Spectrum (DS-SS) signals in low signal to Noise Ratio (SNR) scenarios.
针对同步多用户长码直扩信号，该文提出了一种低信噪比条件下的盲解扩算法。
In this paper, a blind despreading algorithm is proposed for the synchronous multi-user long-code Direct Sequence spread Spectrum (DS-SS) signals in low signal to Noise Ratio (SNR) scenarios.
针对同步多用户长码直扩信号，该文提出了一种低信噪比条件下的盲解扩算法。
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