搜索资源列表
kuoping
- 扩频通信中的捕获问题,用GOLD码进行扩频, PN码相位捕获,利用捕获的相位,接收机产生偏移的GOLD码,进行解扩和误码率计算-Capture the problem in spread spectrum communication, spread spectrum codes with GOLD, PN code phase acquisition, the use of capture phase, the receiver generates offset GOLD code, for d
BPSK
- 经过BPSK调制解调 直接序列扩频 误码率仿真图-After BPSK modulation and demodulation Direct sequence spread spectrum BER simulation map
oneuserdscdma
- 单用户dscdma的仿真,使用类编程。包含发送,信道,接收3个类。有扩频,调制,高斯信道和瑞利,解调,解扩,统计误码率等功能,减小仿真点数可使程序运行更快。-Single-user dscdma the simulation, the use of programming. Send contain, channel, receiving three categories. There are spread spectrum, modulation, Gaussian and Rayleigh
xiugaideq
- 在一个通信系统中对信源的扩频,信道的指定概率加错并在接收端解扩,计算其误码率-In a communication system in the source of the spread spectrum, channel designated fault probability increases and despreading in the receiver to calculate the BER
2008_5
- 在三条径的瑞利信道中,对于直接序列扩频: (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法,接收机分别采用等均益合并、最大比合并。用Simulink进行仿真,测量BPSK的误码率性能,画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线,请解释在误码率为0.01时,两种合并方式所表现的不同的物理意义。 (2) 设频率已经同步,请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法,用Simulink进行仿真(自己编写代码S-Function
spread_spectrum_communication
- 四用户扩频通信系统设计、MATLAB仿真及误码率计算-Four user spread spectrum communication system design, MATLAB simulation and bit error rate calculation
1
- 建立了信号从扩频、加干扰信号到解扩、求误码率的仿真模型系统。 经过小波镜像处理的与理想的状况的比较。-Established from the spread spectrum signal, plus interference signal to the de-spread, and the bit error rate system simulation model. After wavelet image processing and comparison of the ideal si
kuopin
- 扩频通信中误码率随扩频序列的长度的变化计算-Spread Spectrum Communication
yizhi
- 扩频通信中对强窄带干扰进行变换域预测后系统的误码率-Spread Spectrum Communication strong narrow-band interference in transform domain to predict system bit error rate after
CDMA-2USER
- 二用户CDMA系统,信道为加性高斯信道,使用BPSK调制,15位M序列扩频,可以正确解扩解调。 输出为2用户的基带信号、扩频信号、PSK调制信号、解调信号的时域和频域特性,给出两个用户分别的误码率。 -Second, the user CDMA system, channel for the additive Gaussian channel, using BPSK modulation, 15 M Sequence Spread Spectrum, you can correct demo
SHIYAN_3
- 利用M函数仿真扩频通信系统。6个用户的CDMA的同步通信系统,每个用户利用L=31的Gold码,进行扩频,信道为AWGN信道,接收端利用匹配滤波器进行检测。绘出当N=10000个发射比特下,SNR=0:15(dB)时的误码率曲线。 -M function simulation using Spread Spectrum Communication System. 6 simultaneous users of CDMA communication system, each user of t
xi1
- 设计了一个扩频 系统,具有扩频解扩的功能。系统中采用的是瑞利衰落的信道。仿真的结果很好,系统的误码率很小-Designed a spread-spectrum system with spread spectrum despreading function. System is used in the Rayleigh fading channel. Good simulation results, the system bit error rate of the small
kkkkppp
- 扩频通信的扩频和解扩。信道是瑞利衰落信道,接收的误码率很小-Spread Spectrum Spread Spectrum Communication extend reconciliation. Channel is Rayleigh fading channel, receive a very small bit error rate
abbr_bdd552019c5b7fd30a93fc1b2c0ccc21
- 直接序列扩频通信系统误码率的仿真分析PN码同步方法的比较与仿真-Direct Sequence Spread Spectrum Communication System Simulation and Analysis of BER PN Code Synchronization Methods and Simulation
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
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
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
Direct_sequence_spread_spectrum_communication_syst
- 直接序列扩频通信系统误码率的仿真分析PN码同步方法的比较与仿真-Direct sequence spread spectrum communication system of the simulation analysis of PN Code Synchronization Comparison and Simulation
ds
- DS系统仿真模型 先调制后扩频的方法 建立模型 绘制误码率曲线-System Simulation Model DS spread spectrum modulated first approach to model the bit error rate curves drawn
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