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hvvCDMA
- 在MATLAB环境下实现了CDMA通信系统仿真，程序流程为：随机序列产生--WALSH码扩频--BPSK调制--加入（和不加入）高斯白噪声--BPSK解调--WALSH码解扩，对过程波形进行了存储，对加噪与不加噪情况下的解码结果进行了对比，并绘制出信噪比与误码率关系图。-In the MATLAB environment to achieve a CDMA communication system simulation, the program flow as follows: random s
009
- 利用matlab对IS-95前向链路系统的仿真，包括扩频调制，匹配滤波，RAKE接收等相关通信模块，仿真环境为加性高斯白噪声信道. -Using matlab on the IS-95 forward link system simulation, including the spread spectrum modulation, matched filter, RAKE receiver and other related communication module, the simula
smartjam
- 灵巧干扰对直接序列扩频信号发射机和接收机的干扰仿真程序，包括通信发射机电路、接收机捕获电路、码跟踪电路、载波捕获电路、防假捕电路、信噪比估计电路和数据解调电路-Smart interference on direct sequence spread spectrum signal transmitter and receiver interference simulation program, including communications transmitter circuit, recei
direct-sequence-spread-spectrum
- 带干扰的直接序列扩频通信系统,PN码由m序列产生器产生，经过高斯白噪声信道。在接收端接收到的信号包括“有用信号+高斯白噪声+干扰”，将接收信号进行解扩，判决，得到用户的信号检测结果，绘制不同的扩频增益（增益值为10，30，50）下，误比特率随信噪比Eb/N0的变化曲线。-the direct sequence spread spectrum with interference communication system
zslsimu
- 基于MATLAB的直接序列扩频仿真程序代码。-MATLAB-based simulation of direct sequence spread spectrum code.
1111
- 基于Matlab的扩频高度表捕获跟踪算法软件仿真-Matlab-based spread-spectrum acquisition and tracking algorithm for software simulation altimeter
DS_CDMADirect_sequence_spread_spectrum_communicati
- 直接序列扩频通信系统的MATLAB仿真设计-Direct Sequence Spread Spectrum Communication System Simulation and Design of MATLAB
PN_sequence_generation
- 直接序列扩频通信系统建模与仿真 PN码序列产生代码（matlab)-PN code sequence generated code (matlab)
model_and_code
- 直接序列扩频通信系统建模与仿真 模型及所有仿真代码-Direct sequence spread spectrum communication system modeling and simulation model and simulation code for all
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
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
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
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
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
Thejammingofspreadspectrumcommunicationssystemandt
- 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
Direct_sequence_spread_spectrum_signal_generation_
- 基于matlab的直接序列扩频信号的产生与捕获模拟-Direct sequence spread spectrum signal generation and capture analog