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pnsequence
- MATLAB通信工具箱中的系统仿真,分为用SIMULINK模块框图进行仿真和用MATLAB函数进行的仿真两种。在用SIMULINK模块框图的...扩频通信有直接序列(DS)、跳频(FH-communications toolbox of MATLAB system simulation, categorized SIMULINK block diagram for using MATLAB simulation and the simulation function for both. Usin
0820
- CPLD在DS—FH混合扩频通信系统中的应用
Spread Spectrum 07
- SPREAD SPECTRUM MODULATION TECHNIQUES -spread spectrum - those modulation methods that are producing a signal whose spectrum is more wider than of the data signal, the occupied frequency band being independent by the signal of data band. -The sig
sfs
- DW 256 DUP(?) STACK1 ENDS DDATA SEGMENT MES1 DB The least number is:$ MES2 DB 0AH,0DH, The largest number is:$ NUMB DB 0D9H,07H,8BH,0C5H,0EBH,04H,9DH,0F9H DDATA ENDS CODE SEGMENT ASSUME CS:CODE,DS:DDATA START: MOV AX,DDAT
code
- Hybrid DS-FH communication systems
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
dsss-and-fhss-examples
- 本文件包含了两个直扩和跳频的例子,用MATLAB语言实现,而且还包括例子的原文及大量注释,十分详细-This document contains two examples of DS and FH, with the MATLAB language, but also examples of the original and a lot of notes, very detailed
FHFSK
- CDMA编码的代码,跳频扩频的代码以及直接序列扩频的代码,以供参考-CDMA coding ,FH Spread spectrum and DS Spread spectrum
FHPDSPCDMAPFSKPGOLD
- CDMA编码的代码,跳频扩频的代码以及直接序列扩频的代码,以及GOLD码产生-CDMA coding ,FH Spread spectrum and DS Spread spectrum
FHSS_DSSS_CDMA
- 直扩与跳频的调制解调过程在CDMA的具体实现-DS and FH CDMA modulation and demodulation process in a concrete realization
rejectionofnbibaseonwaveletpacket
- 为了进一步提高直接序列/跳频(DS/FH)扩频系统的抗干扰能力,基于小波包变换结合递归最小二乘算法设计 了一种变换域自适应干扰抑制算法,该算法采用小波包分解定位窄带干扰,递归最小二乘算法抑制窄带干扰。通过蒙特卡 罗仿真分析在增加抗干扰模块后,DS/FH系统工作在准静态时,在不同信噪比条件下抗窄带干扰性能。仿真结果表明:该 算法具有较强的自适应性以及抗窄带干扰能力,其性能优于传统的直接置零法,适用于多音干扰下的恶劣通信环境。-In order to further improve th
the--generation-of-DS-FH-signal
- 进行直接序列扩频/跳频信号(DS-FH)的简单生成过程仿真-Direct sequence spread spectrum/frequency hopping signal (DS-FH) generates a simple process simulation
kuopin
- 混合扩频DS/FH仿真程序,从原始信号通过伪随机码,跳频码转变为混合扩频信号,再依次解跳解扩,最后通过低通滤波器恢复出信号。-Hybrid spread spectrum DS/FH simulation program, from the original signal by pseudo random code, frequency hopping code into a hybrid spread spectrum signal, and then hopping despreading,
DS_FH
- 非常经典的直扩/跳频 matlab-simulink链路,有助于理解跳频通信。需要Matlab2013打开。-Very classic DS/FH matlab-simulink link, help to understand the frequency hopping communications. Need Matlab2013 open.