direct sequencing造句

• Principle and application of direct sequence spread spectrum asic
  直序扩频芯片的原理与应用
• Direct sequence spread spectrum
  直接序列展频技术
• Direct sequence spread spectrum ds
  直接序列扩频
• Broadband direct sequence cdma for fixed wireless pstn access - layer 2
  固定式无线pstn访问用宽带直接顺序cdma . 2层
• Broadband direct sequence cdma for fixed wireless pstn access - layer 1
  固定式无线pstn访问用宽带直接顺序cdma . 1层
• Direct sequence spread spectrum
  直接序列扩频
• Research on the direct sequence spread spectrum and its applications in the military
  直接序列扩频通信及其军事应用研究
• Analysis of the simulation of direct sequence spread spectrum communication system
  直接序列扩频通信系统误码率的仿真分析
• The design of direct sequence spread spectrum communication system for data transmission
  直接序列扩频数据通信系统的设计
• An algorithm for the suppression of narrowband interference in the direct sequence spread - spectrum ( dsss ) systems is presented
  摘要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。
• Spread spectrum communication technology can be classified into four catalogs : direct sequence spread spectrum , frequency hopping , time hopping and chirp
  扩频技术种类较多，主要包括直接序列扩频、跳频、跳时和线性调频。
• The hardware design includes pl2101 power line node , realization of narrow - band interferences in direct sequence spread spectrum signal using frequency - domain algorithm
  其中硬件设计包括pl2101电力线节点、窄带干扰自适应抑制系统的实现。
• Chapter 3 discuss the modem technology and synchronization of direct sequence spread spectrum system ( the design in this paper also use this system )
  第三章对常用的直接序列扩频系统(本设计也正是使用这种系统)的调制解调以及同步技术进行了讨论。
• Chaotic spread spectrum sequences , including direct sequences ( ds ) and frequency hopping ( fh ) sequences are designed utilizing chebvshev map chaotic system
  采用离散混沌系统chebyshev映射设计了混沌扩频序列，包括直扩序列和跳频序哈尔滨工程大学博士学位论文列。
• Thus , i lucubrate the arithmetic of the underwater spread spectrum communication to solve these problems . the system adopts the technique of direct sequence spread spectrum ( dsss )
  正是基于这一点，本论文深入研究了水声信道中的扩频通信相关算法，该扩频通信是基于直扩技术。
• The system completes anti - jamming function of frequency - hopping ( fh ) and direct sequence spread spectrum ( ds - ss ) by exploiting dsps + fpga structure , so it is flexible and modular
  它采用dsps + fpga的结构，实现跳频扩频和直接序列扩频的抗干扰功能，因而结构灵活，适于模块化设计。
• The theory of direct sequence and cck is described . the mechanism of tdm is established . then , a method to maintain the synchronization of the tdm is proposed
  在介绍了ieee802 . 11协议的物理层用到的直序扩频技术和补码键控技术后，对系统的时分双工工作机制的建立与维护进行了详细的分析。
• A tdrss user transponder is a terminal of the user satellite in this system , in which qpsk or sqpsk modulation and direct sequence spread spectrum ( ds - ss ) are employed in the forward / backward links
  Tdrss用户应答机是该系统的用户终端，其正反向链路的信号通常采用qpsk或sqpsk调制和直接序列频谱扩展。
• Direct sequence spread spectrum ( dsss ) system usually operates in the condition of low signal - to - noise ratio ( snr ) . the receiver extracts information from the signal through correlation operation by the spread code
  直接序列扩频通信系统通常工作于低信噪环境中，接收机以扩频码对信号相关解扩提取信息。
• They distributed mostly in china . in this study we studied the phylogenetic relationships of the two groups : cervaphidinae and pterocommatinae using the pcr product direct sequencing method
  Rdna是编码核糖体rna的基因， 18srdna被认为是研究高级分类阶元演化关系比较有效的基因，常用于科级水平的系统发育分析。