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基于FPGA的直接序列扩频发射机的设计与仿真。实验中以QuartusII 7.2 为设计和仿真工具,
各模块采用Verilog HDL设计并封装,顶层使用图形设计方式,最后得到的仿真结果使用Matlab描点来绘制出波形。
,FPGA-based direct sequence spread spectrum transmitter of the design and simulation. Experiment to QuartusII 7.2 for the design and simu
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直接序列扩频通信的Verilog仿真代码,在Quartus II中实现。-Direct sequence spread spectrum communication Verilog simulation code, implemented in Quartus II.
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北斗定位系统卫星下行信号的基带处理部分——基于FPGA的直接序列扩频发射机的设计与仿真。-Beidou Positioning System satellite downlink of the baseband signal in part- based on direct sequence spread spectrum FPGA Design and Simulation of the transmitter.
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fpga嵌入式设计 扩频接收机设计 有matlab 和vhdl 对比情况-Design of spread-spectrum receiver embedded FPGA design and VHDL contrast matlab
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扩频发射机的设计实现与仿真 以QuartusII 7.2 为设计和仿真工具来实现直接序列扩频(DSSS)扩频发射机-Design and implementation of spread spectrum transmitter to QuartusII 7.2 and simulation for the design and simulation tools to achieve the direct sequence spread spectrum (DSSS) spread-spectr
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直接序列扩频+成型滤波,将编码后数据进行256倍扩频,再按照4倍内插根升余弦成型滤波,最后成形滤波后按4路并行输出,以满足并行输入DA的要求。-Direct Sequence Spread Spectrum+ shaping filter, the encoded data 256 times more spread spectrum, and then interpolated according to four times the root raised cosine shaping fil
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VHDL语言实现8路并行输入,8路并行输出,直接序列扩频接收机的高速匹配滤波。
-VHDL language to achieve 8-channel parallel input, 8-channel parallel output, high-speed direct-sequence spread spectrum matched filter receiver.
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探讨用于直接序列扩频的数字匹配滤波器(DM )的逻辑结构和有关参敷的选取问题;
讨论了采用并行处理技术和快速算法的可行性,分析了量化比特数、取样间隔以及A/D变换器固有的
软限幅鼓应对系统性能的影响;为有所比较,还提到了早期的柱性重合D^ 。在给出部分理论分析和计
算机模拟结果之后归纳了几条主要结论,这叶在目前国内条件下设计DⅦ 特别具有参考价值。-Explore for direct sequence spread spectrum digital matched filter (
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直接序列扩频的VHDL实现,论文里面提供了较好的源码和方案设计-Direct Sequence Spread Spectrum of the VHDL implementation, research papers which provide a better source and program design
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完成直接序列扩频系统的伪码精确同步,并用FPGA进行实现-Complete the direct sequence spread spectrum system PN precise synchronization, and implementation with FPGA for
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西电毕业论文,文章详细的阐述了直扩原理并且进行了仿真。扩展频谱技术有多种基本实现方式,本文主要介绍的是直接序列
扩频技术,特别针对二进制的 PSK调制解调技术,直接序列扩频系统的抗干
扰能力分析与直接序列扩频系统的同步方法,并进行了相关仿真分析。-Spread spectrum communications has many basic
manners of implementation, this paper main introduces the dir
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介绍了某直接序列扩频、QPSK调制系统接收通道中四相Costas 载波跟踪环的原理及其基于 DSP+FPGA 的实现-Introduced a direct-sequence spread spectrum, QPSK modulation system, receive path Costas carrier tracking loop four-phase principle and its implementation based on DSP+ FPGA
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直序扩频通信发送部分的源代码,用verilog编的,包括信源模块、扩频模块、极性变换模块和DDS调制模块-Direct sequence spread spectrum communication sent part of the source code, compiled with verilog source modules, spread spectrum modules, polarity transform module and DDS modulation module
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1. 伪随机序列概述
在扩展频谱通信系统中,伪随机序列起着十分关键的作用。在直接序列扩频系统得发射端,伪随机序列将信息序列的频谱扩展,在接收端,伪随机序列将扩频信号恢复为窄带信号,进而完成信息的接收。
-1. The pseudo-random sequence Overview, pseudo-random sequence plays a very crucial role in the spread spectrum communication system. Obtained i
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direct sequence spread spectrum matlab program to achieve the spreading of original data
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