搜索资源列表
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
cdma
- 用于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。 -IS-95 forward link system simulation, including spread spectrum modulation, matched filter, RAKE receiver communication module.
DSSS-system.rar
- DS-CDMA通信系统,扩频码包括M序列。GOLD,正交GOLD,Gray规则瑞利衰落信道,多用户,统计误码率。,DS-CDMA communication system, the spreading codes including an M sequence. GOLD, orthogonal GOLD, Gray rules Rayleigh fading channel, multi-user, the statistical error rate.
DS_CDMA
- DS_CDMA通信系统的MATLAB仿真源程序,包含发射信号、QPSK调制、GLOD码扩频、解扩、解调等过程-DS_CDMA communication system simulation source of MATLAB, including emission signal, QPSK modulation, GLOD code spread-spectrum despreading, demodulation, etc.
IS95-forward-link-system
- 此函数用于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: 加性高斯白噪声信道. -This function is used for IS-95 forward link system simulation, including the spread spectrum modulation, matched filter, simulation environment, RAKE receiver and other related commun
dsss-noise
- 在matlab中进行信道仿真,对噪声进行建模 该程序验证了加噪公式在复杂通信系统(扩频、过采样)中的正确性-The correctness of the channel simulation in matlab noise modeling program verification adding noise formula in complex communication system (Spread Spectrum oversampling)
mps-
- 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
LMSRLS
- 盲多用户检测的LMS和RLS算法,在DS/CDMA通信系统中,为了解调出用户的有用信息,必须尽可能地抑制由其它用户扩频信号产生的多址干扰(MAI,Multiple Access Interference)。尽管最佳多用户检测器可以很好地抑制MAI,但其运算量会随着用户数的增加而呈指数增加。盲多用户检测技术可以在不知道其他用户信息的情况下检测出目标用户,所以在实际应用中有着十分重要的应用前景.-LMS and RLS algorithm Blind Multiuser Detection in D
DS-CDMAsystem
- DS-CDMA系统的,直扩通信系统里基于不同扩频码不同,系统的误码率比较。其中基于多相正交序列的误码率最低。-DS-CDMA system
ds-cdma
- 扩频技术和cmda技术结合相结合进行通信系统的仿真-Cmda spread spectrum technology and communication technologies combining system simulation
CDMA
- CDMA通信系统仿真程序,可以选择不同的PN码扩频调制,有信道编码,信道加入高斯白噪声,仿真不同的检测器的的性能-CDMA communication system simulation, simulation of different detectors performance
IS95_forward
- 用于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: 加性高斯白噪声信道. 数据速率 = 9600 KBps - Before the IS-95 is used to link the system simulation, including the expansion of Frequency modulation, filtering matched related communication module, RAKE rec
DEMO_third
- Demo Speed通信协议MATLAB实现。基于动态帧时隙ALOHA(DFSA)协议与正交可变扩频因子码(OVSF)作为扩频码的码分多址技术相结合的超高频RFID系统-Demo Speed Communication Protocol MATLAB. (DFSA) agreement with orthogonal variable spreading factor code (OVSF) UHF RFID system based on dynamic frame
test
- 一个将turbo编译码与扩频相结合的通信系统-a communication system of combined turbo and spread
BPSK_matlab
- BPSK直扩通信系统仿真,包括调制解调/扩频解扩,MATLAB工具-bpsk system simulation in matlab
DS-CDMA
- 简化的DS-CDMA通信系统仿真,数据流和时间流均可.码元速率256ksps,调制方式QPSK,扩频码为m序列或GOLD序列,信道为加性高斯信道和瑞利衰落信道两种,其他参数自己设定。-Simplified DS-CDMA communication system simulation, data flow and the flow of time can be. Symbol rate 256ksps, modulation QPSK, m-sequence spread-spectrum co
DS_CDMA-Channel-Estimation
- DS_CDMA通信系统信道估计,采用的基于导频的LS算法,还包括扩频调制、解扩等基本CDMA系统程序。-DS_CDMA communication systems channel estimation, the LS algorithm based on pilot, including spread spectrum modulation and algorithm to CDMA system program.
time_check
- 通信主从机双向系统时钟同步,用于扩频、跳频等。由从机发起时间校准请求,主机回复时间信息,达到主从机的时钟同步。-Slave two-way communication between the host system clock synchronization for spread spectrum, frequency hopping and so on. Initiated by the slave time alignment request, the host response time
Algorithms_Comm_Systems
- 非常全面详实的讲述了通信领域的算法与应用!从各章节题目可以看出,包括了比如维纳滤波,线性预测,自适应滤波,调制理论,信道均衡,OFDM,扩频系统,信道编码,TCM,同步,预编码,自训练均衡,干扰消除等等。-The motivation for this book is twofold. On the one hand, we provide a didactic tool to students of communications systems. On the other hand, we p
2018.01.20
- CDMA通信系统中的扩频码,跳频码,信号分选,参数估计,调制识别(Spread code in CDMA communication system, frequency hopping code, signal sorting, parameter estimation, modulation recognition)