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fh
- 本文阐述了扩展频谱通信技术的理论基础和实现方法，利用MATLAB 提供的可视化 工具Simulink 建立了扩频通信系统仿真模型，详细讲述了各模块的设计，并指出了仿真建模 中要注意的问题。在给定仿真条件下，运行了仿真程序，得到了预期的仿真结果。同时，利 用建立的仿真系统，研究了扩频增益与输出端信噪比的关系，结果表明，在相同误码率下， 增大扩频增益，可以提高系统输出端的信噪比，从而提高通信系统的抗干扰能力。 -This paper describes the theory
QPSKand16QAM
- 该程序是关于扩频通信在不同调制方式下的抗噪声性能比较-compare in Qpsk and 16 QAM in DSSS
communicatoin
- 扩频通信毕业论文+通信实验综合系统为目的，从硬件实现和系统仿真两个方面对直接扩频工作方式进行研究-Spread Spectrum Communication Experiment thesis+ integrated system for the purpose of hardware implementation and system from two aspects of simulation work to study the direct spread spectrum
p
- 综合了各种基于matlab直接序列扩频通信系统的文档-Integrated a variety of direct sequence spread spectrum based communication system matlab documentation
fangzhen
- 一种直接扩频序列的SIMULINK仿真模型 MATLAB6.5及以上环境可完美运行 发射部分和接受部分的频率图波形图均以给出-A direct sequence spread spectrum and above MATLAB6.5 SIMULINK simulation model of the environment can be run perfectly and accepted part of the transmitter frequency waveforms are gi
SIMULINKPN
- 介绍了MATLAB下如何实现直接扩频序列的PN伪随机码如何实现同步 并给出结果-Describes how MATLAB directly under the PN spreading sequence PN code to achieve synchronization and gives the results
linearcoder
- 为了改善数字通信系统的传输质量，提高数字通信系统传输的可靠性引入信道编码。信道编码是扩频通信的关键技术之一，是解决信号在信道中无差错传输的技术。-In order to improve the transmission quality and reliability of the digital communication system, channel coding is proposed. Channel Encoding technology is one of the key techn
Spread-Spectrum-Receiver-code
- 基于FPGA的扩频接收机（直扩）vhdl编写的，最好在quartus环境运行。-FPGA-based spread spectrum receiver (DS) vhdl prepared, the best environment to run in quartus.
DS
- DS-CDMA直序扩频通信系统仿真源码，内部含有程序的详细中文解释以及word形势，系统大家下载~-DS-CDMA Direct Sequence Spread Spectrum Communication System Simulation source code, the internal procedures in detail with the Chinese to explain the situation and the word, the system you download ~
kuopintongxin
- 这是直接扩频通信系统的PPT课件，清楚讲解了扩频技术的来源，理论依据等，让人能快速了解扩频技术的原理。-This is a direct spread spectrum communication system, PPT courseware, clearly explained the source of spread spectrum technology, the theoretical basis so people can quickly understand the principl
ds_modulation_tools_2008
- 有直接序列扩频的所有部分。怎么这么麻烦啊！上传个代码！-Are all part of the direct sequence spread spectrum. How much trouble ah! From a code!
TD_SCDMA
- tdscdma系统仿真包括 扩频加扰ovsf生成 qpsk映射-tdscdma system simulation including the generation spectrum scrambling ovsf qpsk map
bpsk_spread
- 扩频通信中用bpsk调制的源代码，注释全，简单易懂。-Using spread spectrum modulation bpsk source code, comments all, easy to understand.
Directsequencespreadspectrumsignalacquisitionystem
- 信号的捕获直接序列扩频系统的matlab仿真实现，非常实用-Direct sequence spread spectrum signal acquisition system matlab Simulation
zhijiexuliekuopin
- 直接序列扩频 实现扩频、解扩还有。MATLAB实现环境。其中解调用的是BPSK。-Spread Spectrum Direct Sequence Spread Spectrum, despreading there. MATLAB implementation environment. One solution is called BPSK.
dsss_signal_detection_and_parament_estimate
- 自相关检测方法是利用信号和噪声在相关域上的差别来构造检测器的。自相关检测是将信号与自身延迟一个时延后的信号作相关处理，或用双通道接收机的输出进行相关，得到扩频信号的自相关函数-Auto-correlation detection method is the use of signal and noise in the relevant field to construct the difference detector. Autocorrelation test is a time delay
kuopin
- 直序扩频系统，首先基带信号通过脉冲成型，m序列扩频然后进行BPSK调制发送，接收端接收到信号加干扰和噪声，进行解调和解扩恢复原始信号。- The straight foreword wide frequency system, the first baseband signal through the pulse formation, the m sequence wide frequency then carries on BPSK the modulation transmission, t
DS_CDMA
- 这是一个相对完整的直接序列扩频码分多址的通信系统的仿真设计，包括编码，扩频调制，解调和解码等模块，并统括系统性能的仿真，验证了系统设计的可靠性。-This is a relatively complete direct sequence spread spectrum CDMA communications system simulation design, including coding, spread spectrum modulation, demodulation and decodi
CompletethedirectsequencespreadspectrumsystemPNpre
- 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
costas
- 本文介绍了直接序列扩频系统中数字Costas环的设计与实现，用来实现载波同步的闭环算法-This paper introduces the direct sequence spread spectrum digital Costas loop in the design and implementation to achieve closed-loop carrier synchronization algorithm