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- orthogonal spreading sequence 正交扩频序列
- Orthogonal Spreading, PN sequence, signal modulation and the global initialization, the module of global initialization is used to set some common parameters of the whole simulation model. 按照模块化设计过程分别实现了CDMA2000 1x系统的CRC编码器模块、卷积编码器模块、信号交织器模块、正交扩频模块、PN信号生成器模块和信号调制模块,以及用于设置整个仿真模型中使用的一些公共参数的初始化模块。
- Related problems, such as quick capture of direct spread sequence, MSK coherent demodulation, are also involved. 讨论了存在强干扰条件下MSK中频数字接收机的频域窄带干扰抑制、伪码快速捕获、MSK相干解调等实现方法。
- Abstract ：In this paper，A multicarrier signaling technique is applied to a direct-sequence CDMA system．A data sequence multiplied by a spreading sequence modulates multipte. 摘 要： 本文将多载波发送信号技术应用于直接序列扩频码分多址系统中．发射机中直接扩频序列与数据序列相乘，然后调制多个载波；
- Aiming at that spread sequence isn't strict balanceable in the basic SEDS system, we set up three improved models, which can make the sequence balanceable. 本文针对基本自编码直扩系统的扩频序列无严格的0/1平衡特性,建立了三种都能达到扩频序列平衡、但系统误码性能不同的改进模型。
- The principle of direct spread sequence spectrum(DSSS) is discussed to show character of antidisturbance,and the receiver model and dispatcher model of DSSS is given. 详细阐述了直接序列扩频技术的原理及其抗干扰特性,并给出该通信模式接收机和发送机的模型。
- The principle of direct spread sequence spectrum (DSSS) is discussed to show character of antidisturbance, and the receiver model and dispatcher model of DSSS is given. 详细阐述了直接序列扩频技术的原理及其抗干扰特性，并给出该通信模式接收机和发送机的模型。
- M -ary orthogonal spread spectrum M元正交扩频
- The constructive method of new spreading sequence with ideal two-level autocorrelation function is obtained from the ideas of the d-form sequence and extended sequences. 利用d-型序列和扩展序列的思想，给出了新的具有二值自相关特性的扩频序列构造表达式。
- Because the cross correlation between auxiliary sequence and spread sequence is linear, some search algorism can be used to estimate the phase of incoming signal quickly without increasing the complexity of system. 因为辅助序列与扩频序列的相关函数近似满足线性单调性，可以利用快速搜索算法，如：二分法，对接收信号中扩频序列的相位进行快速搜索，在保证系统复杂度不变的前提下，降低序列捕获的时间。
- Bit Soft-Output Algorithm for Dual N-ary Orthogonal Spread Spectrum System 双多进制正交扩频系统的比特软值输出算法
- What can we do to prevent the disease spreading? 我们能做什么来防止这种疾病蔓延呢？
- In video disk, a consecutive sequence of frames. 在视频光盘上，一种连续的帧序列。
- DESIGN FOR A DIGITAL CHAOTIC SPREADING SEQUENCE GENERATOR 一种数字化混沌扩频序列发生器的设计
- De-spreading Technique of One M-ary Orthogonal Spread Spectrum System 一种多进制正交扩频方案的解扩技术研究
- She made a sequence of dance movements. 她做了一个连续的舞蹈动作。
- The smoke from chimney is spreading out in the sky. 烟囱冒出的烟正在空中散开。
- In order to expand the group of ades on communication system with asynchronous code division multiaddress (CDMA), the possibility of using chaotic spreading sequences was researched. 为了增加异步码分多址通信系统的可用码组，研究了在该系统中使用混沌扩频序列的可能性。
- Put the mixed historical facts in sequence. 将混淆的历史事件按顺序排列。
- Trinomial properties of three families of nonlinear spreading sequences (GMW sequences, No sequences and Kasami sequences) are discussed in this paper. Using the trace representation, we prove that these sequences have regular trinomial pairs. 讨论了三类非线性扩频序列(GMW序列、No序列和Kasami序列)的三项式特性,利用这三类序列的迹表示,证明了GMW序列、No序列和Kasami序列均具有正则三项式对。
