Description: 宽带DDC的Verilog程序，及其MATLAB仿真程序看结果，最大可达100M带宽，程序中用的是50M-Wideband DDC' s Verilog program, and MATLAB simulation program to see the results, the maximum bandwidth of up to 100M, the program used is 50M Platform: |
Size: 8477696 |
Author:左洪成 |
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Description: 比较超宽带SAR图像matlab和c语言的并行算法的代码效率，很好的一个算法比较-Parallel Performance of Pure
MATLAB "M-files" versus "Ccode“
as applied to formation
of Wide-Bandwidth and Wide-
Beamwidth SAR Imagery Platform: |
Size: 1050624 |
Author:zhao wen |
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Description: 信号带宽30MHz,输入采样率96MHz,输出采样率32MHz，抽取倍数为3的数字下变频DDC的Matlab仿真程序-Signal bandwidth of 30MHz, the input sample rate of 96MHz, the output sampling rate of 32MHz, extracted 3 times DDC DDC in the Matlab simulation program Platform: |
Size: 1024 |
Author:王枫 |
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Description: 线性方程组的系数矩阵为实对称阵并且采用半带宽存储时，采用顺序高斯消去法解线性方程组的matlab程序。-The coefficient matrix of linear equations for the real symmetric matrix and the semi-bandwidth, storage, use sequential Gaussian elimination method for solving linear equations matlab program. Platform: |
Size: 1024 |
Author:happy511 |
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Description: 用matlab编写的函数式文件：function r=ksrlin(x,y,h,N).用于进行局部线性拟合，x、y为自、因变量，h为核估计的带宽，N为数据点的个数。-Using matlab functional file: function r = ksrlin (x, y, h, N). Used for local linear fitting, x, y as independent, dependent variable, h is the kernel estimator of bandwidth, N is the data the number of points. Platform: |
Size: 2048 |
Author:于忠达 |
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Description: This report discusses the analys of Channel gain matrix to extract all channel informations like frequency reponse, impulse response, power delay profile, correlation bandwidth ets along with the matlab code Platform: |
Size: 2852864 |
Author:mirza |
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Description: 多输入多输出(MIMO)通信系统相比其他的通信系统具有更高的频谱效率，在不增加发射功率以及信号带宽的
情况下，MIMO 技术可以有效地提高系统信道容量及其性能。利用均匀角能量分布以及相关矩阵，分析了相关信道下的MIMO
系统信道容量，得出了系统信道容量的通用公式，并利用MATLAB 进行仿真。仿真结果表明，相关性的增加意味着信噪比的减
小，圆形接收天线阵列半径与角度扩展是决定MIMO 系统信道容量的主要因素。-Multiple-input multiple output (MIMO) communication architecture, as compared with conventional
techniques, has even higher spectral efficiency, and MIMO technique could greatly improve channel capacity and
performance of the system without any increase of transmitting power and bandwidth. By uniform angular distribution
and the correlation matrix, the MIMO channel capacity in correlated channel is investigated. Numerical simulation
is performed with MATLAB, thus to verify the proposed formula. Simulation result indicates that, for this model,
the increase of correlation means the reduction of signal-to-noise ratio (SNR), and the circular receive antenna
array radius or angle spread is the dominating factor for channel capacity. Platform: |
Size: 805888 |
Author:蜡笔 |
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Description: 为了使数字信号在有限带宽的高频信道中传输，必须对数字信号进行载波调制。就频带利用率和抗噪声性能（或功率利用率）两个方面来看， QPSK系统最佳。QPSK是利用载波的四种不同相位差来表征输入的数字信息，是四进制移相键控（QPSK）。本项目用MATLAB软件对四进制移相键控信号在AWQN信道中传输进行了建模和仿真，通过对仿真得到的误码率和理论误码率进行比较和分析，从而证明了MATLAB软件仿真QPSK调制解调的可行性。-In order to make the digital signal in the high-frequency channel of limited bandwidth transmission of digital signal carrier modulation. Two in terms of bandwidth efficiency and anti-noise performance (or power utilization), QPSK system the best. QPSK, four different phase characterized by the input digital information using carrier quaternary phase shift keying (QPSK). This project using MATLAB software quaternary phase shift keying signal channel transmission in AWQN modeling and simulation, to compare and analyze the error rate obtained by the simulation and theoretical bit error rate, thus proving the simulation of MATLAB software QPSK modulation and demodulation of feasibility.- Platform: |
Size: 3072 |
Author:黄兰凤 |
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Description: 调频电路的matlab simulink 仿真-The objectives of this laboratory are:
To investigate frequency modulation characteristics in the frequency domain.
To implement a classical double-tuned FM demodulator and measure its characteristics.
To implement a modern PLL FM demodulator and measure its characteristics.
To investigate the effect of FM signal bandwidth on the detected signal-to-noise ratio. Platform: |
Size: 158720 |
Author:唐瀚 |
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Description: MATLAB程序编写产生特定功率、有限带宽白噪声，可以做为激励用于振动系统的输入。-MATLAB programming to produce the white noise of a particular power, limited bandwidth, can be used as incentives for vibration system input. Platform: |
Size: 1024 |
Author:赵丽洁 |
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Description: 有关阵列天线的matlab仿真，
1、给出阵元的个数，阵元的间隔以及波长
2、计算方向图并绘制不同的方向图，有规律的排列
3、计算出主瓣宽度，3dB带宽，主瓣与第一旁瓣的幅度比（以dB作单位）-Array antenna matlab simulation,
1, to the number troupe, interval, and the wavelength of the array element
2, calculate the pattern and draw a different pattern, a regular arrangement of
3, calculate the width of the main lobe, 3-dB bandwidth of the main lobe and the first side lobe amplitude ratio (in dB as a unit) Platform: |
Size: 62464 |
Author:王明 |
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Description: 里面的程序为利用MATLAB程序仿真光纤参量放大中的增益与信号波长，增益与泵浦波长，增益带宽与信号波长与泵浦波长差的关系。-Inside the program MATLAB program simulation of the gain of the optical parametric amplification and signal wavelengths, the gain and the pumping wavelength, the gain bandwidth and the signal wavelength and pump wavelength difference. Platform: |
Size: 21504 |
Author:wang |
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Description: 光孤子matlab仿真
注意程序里面的脉冲定义，morder=1就是高斯脉冲，高于1就是超高斯形状。
高斯脉冲的时候，Nc这个参数表征的是啁啾给脉冲带宽带来的增加，
比如Nc=2表示由于啁啾使得高斯脉冲的带宽变为没有啁啾时候的两倍，以此类推。
超高斯脉冲的时候这个参数没有相应的意义。-Soliton matlab simulation Note program inside the pulse defined morder = 1 is the Gaussian pulse, higher than a super-Gaussian shape. Gaussian pulse when Nc of this parameter is characterized is brought chirp to the pulse bandwidth increase, instance NC = 2 represents, and so due to the chirp the the Gaussian pulse bandwidth becomes no chirp when twice. Super-Gaussian pulse when this parameter is not appropriate. Platform: |
Size: 2048 |
Author:haiquan |
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Description: 基于有限元的矩形短边双脊波导的传输特性matlab代码包括衰减系数，单模带宽，截止波长功率容量等-Based on the short side of the rectangular finite element double-ridged waveguide transmission characteristics include attenuation coefficient matlab code, single-mode bandwidth cutoff wavelength power capacity, etc. Platform: |
Size: 2048 |
Author:黄庆福 |
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Description: 正交频分复用（OFDM）是一种通过快速傅里叶变换实现的多载波宽带数字调制技术。相比一般的数字通信系统。它具有频带利用率高和抗多径干扰能力强等优点，因而适合于高速率的无线通信系统。正交频分复用 OFDM 是第四代移动通信的核心技术。论文首先简要介绍了OFDM基本原理。在给出OFDM系统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。-Orthogonal frequency division multiplexing (OFDM) is a fast Fourier transform of the multi-carrier wideband digital modulation through. Compared to the general digital communication system. It has high bandwidth efficiency and resistance to multipath interference ability, etc., which is suitable for high-speed wireless communications systems. Orthogonal frequency division multiplexing (OFDM) is a core technology of fourth generation mobile communication. Firstly, brief introduction to the basic principles of OFDM. On the basis of a given OFDM system model, using MATLAB language to achieve a computer simulation program and gives the reference design of the entire system. Platform: |
Size: 4096 |
Author:张生 |
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Description: 掌握双线性变换法及脉冲相应不变法设计IIR数字滤波器以及窗函数法设计FIR数字滤波器的原理，具体方法及计算机编程。 2.观察双线性变换法，脉冲响应不变法及窗函数法设计的滤波器的频域特性，了解各种方法的特点。 3.用MATLAB画出三种方法设计数字滤波器的幅频特性曲线，记录带宽和衰减量，检查是否满足要求-Master bilinear transform and impulse response invariance IIR digital filter design and window function design FIR digital filter theory, specific methods and computer programming. 2. Observe bilinear transform, impulse response and frequency domain characteristics unchanged Act designed filter window function, understanding the characteristics of the various methods. 3 Draw three methods using MATLAB design of digital filter frequency characteristic curve, record the amount of bandwidth and attenuation, check meets the requirements Platform: |
Size: 1024 |
Author:liyanping |
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Description: 1.使用Matlab实现一个OFDM系统。
OFDM系统具体参数参照LTE标准，具体为：
系统带宽：5MHz；
OFDM符号长度：0.0714ms；
子载波间隔：15kHz；
CP长度：OFDM符号长度的7 ；
FFT点数：512；
2.选择一种降低OFDM系统峰均比的算法，在1的基础上实现，并分析其性能。-1 use Matlab to achieve an OFDM system. OFDM system with reference to the LTE standard specific parameters, in particular: system bandwidth: 5MHz OFDM symbol length: 0.0714ms subcarrier spacing: 15kHz CP length: OFDM symbol length 7 FFT points: 512 2 Select a reduced PAPR of OFDM system algorithms, implemented on the basis of 1, and analyze its performance. Platform: |
Size: 8192 |
Author:Liuning |
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Description: This Paper is concerned with the study of the performance of DPSK (differential phase shift keying)
Modulation Technique using AWGN(Additive white gaussian noise) channel. The DPSK has remarkable
features such as limited bandwidth and constant envelope, which are of importance for mobile communication
systems for providing the output according to our needs and requirement. In this study we evaluated the Bit
error rate performance of the CDMA system by designing the CDMA system using SIMULINK Tool of the
MATLAB software and study the performance characteristics of DPSK modulated CDMA system which are
helpful for raising the level of present day communication systems, In order to design our DPSK modulated
CDMA system we varied only modulation blocks of simple CDMA transmitter and receiver sections. Platform: |
Size: 705536 |
Author:j |
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Description: 水声通信面临的最困难的问题是多途干扰,其中自多途引起接收信号的幅度衰落,互多途引起接收信号的码间干扰,再加上海洋环境的高噪声背景、低的载波频率、极为有限的带宽以及传输条件的时间—空间—频率变化特性,使得通信过程十分困难。此外，水声通信试验的成本高，难度大，也为水声通信研究带来挑战。
本软件对水声信道的仿真研究很有帮助，可以产生声线图，冲激响应，声速图等仿真文件，结合Matlab画图工具绘制图像，对水声信道的模拟仿真很有帮助。-The most difficult problem faced by underwater acoustic communication is multi-path interference, which since multipath fading caused by the magnitude of the received signal, and mutual inter-symbol interference caused by multipath signal reception, plus the marine environment of high background noise, low carrier frequency , very limited bandwidth and transmission conditions of time- space- frequency characteristic such that the communication process is very difficult. In addition, the high cost of underwater acoustic communication experiment, difficult, and challenges for the study of underwater acoustic communication. This software is useful for simulation study of underwater acoustic channel can produce sound chart, impulse response, sound velocity diagrams simulation files, combined with Matlab drawing tools to draw the image of underwater acoustic channel simulation helpful. Platform: |
Size: 415744 |
Author:苏羽 |
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Description: 高志强老师在2003年发表的基于带宽参数的控制器参数整定方法，里面介绍的LADRC（线性自抗扰控制器）例子对应的matlab代码与原文章，方便读者阅读与验证，减轻读者编程负担。-Teacher Gao Zhiqiang, published in 2003 based on bandwidth parameter of the controller parameter tuning method, which describes the LADRC (linear auto disturbance rejection controller example corresponding matlab code and the original article, convenient readers reading and verification, reduce the burden of programming readers. Platform: |
Size: 10240 |
Author:李扬森 |
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