搜索资源列表
QPSK.rar
- 使用matlab程序实现了由随机序列到码元电平、m序列直接扩频解扩、qpsk调制解调，射频调制解调一个完整的qpsk系统过程,Matlab program to use by the random sequence to the symbol level, m direct sequence spread spectrum despreading, qpsk modulation and demodulation, RF modulation and demodulation of the QP
cdma-matlab
- 用matlab程序模拟实现cdma系统的整个过程。包括并串、串并转换，m序列的产生，直接扩频、解扩，qpsk的调制解调，载波调制解调等。-Matlab simulation procedures used to achieve the whole process of cdma systems. Including and string SERDES, m sequence generation, direct spread spectrum, despreading, qpsk the mod
work
- Matlab 模拟 CDMA 直接扩频。m序列生成矩阵为p(x) = 1 + x^5 + x^7 + x^8 + x^9 + x^13 + x^15。能画出每阶段的时域、频域图。-Matlab simulation of CDMA Direct Spread Spectrum. m sequence generated matrix for p (x) = 1+ x ^ 5+ x ^ 7+ x ^ 8+ x ^ 9+ x ^ 13+ x ^ 15. To draw each stage of t
Q_DSSS
- 直扩码分多址DS-CDMA是利用高速的WALSH正交码序列作为地址码，与多用户信息数据相乘得到信息数据的直接扩频信号，再经过BPSK调制后发送出去，经过AWGN无线信道的传输后，在接收端与本地产生的地址码进行相关检测，从中将地址码与本地码一致的用户数据选出，把不一致的用户数据删除。-DS-CDMA DS-CDMA is the use of high-speed WALSH orthogonal code sequences as address code, with multi-user in
DSsystem
- 直接扩频系统常用函数，有助于对直接扩频系统的算法研究。-functions for Direct spread spectrum system,guod referense for the study for Direct spread spectrum system
walsh_array_spreadspectrum
- 实现用walsh进行直接扩频的代码，老师给的，不个好像很简单的-Walsh directly using spread-spectrum code, the teachers to not like a very simple
bpsk_Awagn_Rayleigh
- 实现了一个直接扩频系统，使用BPSK作为调制解调方法。并比较白噪声AWGN及瑞利衰落(rayleigh fading)环境下，误码率的影响。-There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the f
dsss
- 直接扩频源码，超级有用的哦，呵呵,一定要顶啊。-spread，very good
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
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
时反直扩
- 被动时间反转镜和直接扩频相结合，有效克服多途环境。(The combination of passive time reversal mirror and direct spread spectrum can overcome multipath environment effectively.)
DSSS
- （1）编程建立Gold序列，仿真Gold序列的波形； （2）仿真Gold序列的自相关和互相关特性。 （3）编程仿真直接扩频通信系统模型，画出扩频前后信号波形及频谱。((1) programming Gold sequence and simulating the waveform of Gold sequence; (2) the autocorrelation and cross correlation characteristics of the simulated Gold sequ
模二加法直接序列扩频
- 模二加法直接序列扩频，matlab仿真实验。模二加法直接序列扩频，matlab仿真实验。模二加法直接序列扩频，matlab仿真实验。
直接序列扩频系统仿真
- 建立了直接序列扩频系统的matlab仿真模型，在信道中存在高斯白噪声和干扰的情况下，对系统的在不同扩频增益下的误码率性能进行了仿真及分析，分析了扩频码的自相关性、误码率、性噪比。(A matlab simulation model of the direct sequence spread spectrum system, the existence of Gauss white noise and interference in the channel under the condition
DSSS-CDMA-master
- 基于Python语言实现CDMA直接扩频通信系统，并分析了其误码率曲线图(The CDMA direct spread spectrum communication system is implemented based on Python language, and its bit error rate curve is analyzed.)
cx
- 直接扩频通信系统的整个流程，调制使用的是bpsk,信道为awgn(The whole process of direct spread spectrum communication system)
基于matlab的直接序列扩频通信系统仿真
- 学习扩频通信系统技术理论基础及直接序列DS扩频系统基本原理，并设计出直扩通信系统模型。此基带通信系统具体包括信源模块、、数据调制模块、扩频码产生模块、扩频模块、信道模块、解扩模块、解调模块，并在AWGN信道下对系统进行性能仿真研究。(Wireless communications is vulnerable to jamming attacks due to the shared use of wireless medium. A jammer can simply take advantage
直接扩频matlab
- 直接扩频序列的matlab代码及其仿真，用PN序列实现，计算误码率，频谱，通过瑞利信道，AWGN信道。
DSSS扩频通信
- 直接序列扩频通信系统的matlab仿真。(Direct expansion system)
直接扩频系统抗干扰仿真
- 该程序对直接序列扩频系统的抗干扰能力进行了仿真。