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matlab
- ofdm系统的模拟是一种特殊的多载波方案,它可以被看作一种调制技术,也可以被当作是一种复用技术?选择OFDM的一个主要原因在于该系统能够很好地对抗频率选择性衰落或窄带干扰?OFDM 由于其频谱利用率高,成本低等原因越来越受到人们的关注?-OFDM, Orthogonal Frequency Division Multiplexing
Electronicwarfare
- 一、电子战的基本概念 电子战也叫电子对抗或电子斗争,是指敌对双方使用电子技术设备和器材所进行的电磁斗争。随着电子战的方法、手段和目的的变化,电子战的内容在不断地扩充和更新,其定义也在不断地演变。电子战主要包括:电子侦察、电子进攻、电子防御。 电子侦察包括支援侦察和情报侦察,电子进攻包括电子干扰和反辐射摧毁,电子防御包括反侦察、反干扰和反摧毁。而按对抗的对象不同则可分为通信战、雷达战、导航战、制导战、敌我识别战、光电战、C4ISR系统战和计算机战等。-First, the basic co
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- 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
BPSK
- 超宽带BPSK调制输出,加入窄带干扰并进行仿真输出。-Ultra-Wideband BPSK modulation output, adding narrow-band interference and simulation output.
work
- 扩频通信中遭遇到了窄带干扰后,系统的仿真-Spread Spectrum Communication encountered a narrow-band interference, the system simulation
RFnoise
- 产生射频噪声干扰信号,并画出他的波形和功率谱-RF signal generated noise, and draw his waveform and power spectrum
Alamouti
- 这是一种十分常见的简单的MINO阐述的新方法的MATLB代码,基于这种方法可以极大的减少误码率和码间干扰。-This is a Matlab code of a very popular and simple transmit method based on MINO system. By using it, the BER can be greatly redused.
50Hztrapper
- 一个数字陷波程序,已调试通过。用于滤除50hz的工频干扰。-A digital notch procedures through debugging. Used to filter out the 50hz frequency interference.
pll_ok
- 完整的锁相环matlab代码实现,其中包括高斯噪声干扰,频差,相差,给出最后频率及相位收敛结果图。重要的是代码中有本人详细注释,易于理解-Complete phase-locked loop matlab code, including the Gaussian noise interference, frequency difference, a difference, given the final results of the frequency and phase diagram con
Interference-Suppression-Techniques-in-MIMO-Cellul
- 对传统的多小区系统中的干扰控制技术进行了简单的回顾,对多用户和多用户MIMO系统中的干扰抑制技术进行分析,这些是后续对多小区MIMO研究的基础。重点对多小区MIMO系统展开深入研究,揭示了系统干扰受限的原因,将单用户和多用户的千扰抑制技术扩展到多小区系统,分别给出了基于接收端和发送端的多种抑制干扰的系统结构和算法,推导了其容量并进行了性能分析。同时也结合实际系统的设计对各种干扰抑制技术进行比较和评价,得到了许多对于系统设计具有参考价值的结论。-he traditional system of m
Noise_PM
- 这是一种调相噪声的程序,可用于各种通信和非通信的干扰。 -this is a program of noise_PM,it cna be used in many feild such as communication.
smartNoise
- 灵巧噪声干扰,可针对脉冲压缩雷达和PD雷达,具体干扰样式有:三角波调频干扰信号 锯齿波调频干扰信号 马鞍型噪声干扰信号 噪声调相干扰信号 噪声调频干扰信号.-Smart noise interference may be directed to pulse compression radar and PD radar, specifically jamming style are: triangle-wave frequency modulation interference signal s
f_lms
- 均衡技术是克服码间干扰(Inter-Symbol Interference,ISI)的有效措施,由于信道特性的随机性与时变性,实际中消除码间干扰最常用的是自适应均衡器。本文对基于最小均方(Least Mean Squares,LMS)算法和递推最小二乘(Recursive Least Squares,RLS)算法的自适应均衡器进行仿真研究,分析了信道特性与设计参数对自适应均衡器的收敛速度与稳态性能的影响。 -Equalization technique is to overcome inte
multipath_estimation
- 直扩系统中的多径干扰信号的估计消除技术,通过仿真标量多径对直达信号的鉴相特性的影响-DSSS system multipath interference estimate signal cancellation technology, through the simulation of scalar multi-path of the direct signal phase characteristics. .
Influence_of_interfere_in_SINR
- 天线接收信号时,突然出现一个干扰信号,并且干扰信号从0°开始,绕90°,观察SINR的变化规律-Antenna signal, suddenly appeared a jamming signal, and the interference signal from the 0 ° starting around 90 °, observed variation of SINR
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
ss_Pe96
- 这个程序是描述了跳频系统在部分边带干扰下的BFSK系统的仿真,主要是误码率计算函数-This procedure is described in some side-band frequency-hopping system under the disturbance of the BFSK system simulation, bit error rate is mainly a function
OFDM
- 基于MATLAB语言的OFDM(正交频分复用)技术仿真,考虑到了信道衰落和干扰因素,完全原创。-OFDM (orthogonal frequency division multiplexing) technology simulation based on Matlab, taking into account the channel fading and interference factors, entirely original.
LPIT_TOOLBOX
- LPI和LPID的主要目的是能够在比截获接收机对雷达进行探测与干扰的距离更远的距离上来探测目标,本工具箱是在MATLAB下的LPI工具箱-LPI and LPID' s main purpose is to intercept receiver than the radar detection and jamming on the distance farther up exploration goals, the toolkit is under the LPI in the MATLA