搜索资源列表
VQcoding
- 由matlab编写，带GUI界面。对bmp文件进行Vector Quantization。运行其中的VQ_GUI.m文件。 程序肯定是调试无误的。虽然比较耗时，但是最后能达到较好的图像效果和SNR。毕竟相比于VC，matlab运行较慢。 注意在点open打开了一个bmp文件过后，一定要先点VQ code，进行其他操作才能有效。-prepared by Matlab, with GUI interface. Bmp files to Vector Quantization. VQ_GUI.
rake_simulation
- 本程序对rake接收机的仿真程序 在matlab simulink下实现，其信道模型采用802.15.3a信道，信源部分的采用UWB信号，最后通过计算snr与errorbitrate来说明rake接收机性能-this program right rake receiver in the simulation program under Matlab Simulink. its channel model used 802 .15.3 a letter, the source of the s
fenxing
- 为提高语音端点检测(VAD)在较低信噪比(10 dB)下的准确率,提出一种基于短时分形维数的改进算法。结合语音信号的特点,对2种常用的语音信号分形维数计算方法进行了比较和选择,同时采用动态跟随门限值实现语音端点的自适应检测。试验结果表明:对于信噪比6~10 dB的带噪语音,此方法可以实现整段语音的检测,而且具有一定的噪声鲁棒性,系统运行期间能够自适应调整门限值以适应环境噪声的变化,提高了VAD算法的准确率。这个是源码matlab。-In order to improve voice activi
IEEE 802.15.4 物理层仿真程序
- 该程序为IEEE 802.15.4物理层仿真程序。工作频段为2.4GHz,信道模型为AWGN，仿真不同SNR情况下的BER。-This is a matlab programme of IEEE 802.15.4 which simulate the ber in different SNR values.The channel model is AWGN.
GoldsequenceCDMAsimulation
- 写一个MATLAB程序，实现4个时间同步的CDMA用户的仿真，其中每个用户都使用长度为L=31的不同的Gold序列。每个用户都采用它们代表的Gold序列的二进制（+-1）调制。每个用户的接收端将这个复合的CDMA接收信号相关，而这个复合的信号都在它们各自的序列上受到AWGN的污损（基于按码片相加）。在N=10000信息比特下，仿真估值并画出作为SNR的函数的CDMA通信系统的差错概率。-Write a MATLAB program, the realization of the four t
Untitled2
- In this programe a highly scattered enviroment is considered. The Capacity of a MIMO channel with nt transmit antenna and nr recieve antenna is analyzed.capacity of MIMO the result dependences Capacity (bit/s/Hz), and the SNR (dB), in this simulation
CH5
- This a GUI based system. The GUI is invoked from the command line by typing "ui_start". The GUI is self explanatory. Tool tips are given in blue color. The cursor needs to be positioned on these for detailed explanation. The main file is "runsim
Link-a-System-Level-OFDM-Simulator
- 针对OFDM系统，分成链路级仿真和系统级仿真两个部分。为了降低系统级仿真的复杂度，采用链路级仿真的部分结果。-It contains mainly two parts, i.e. link-level simulator and system-level simulator. Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and
Analysis-on-Channel-Capacity-of-MIMO
- 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)
LDPC_Decoder_TDMP
- LDPC Coding with PSK modulation in an AWGN channel Descr iption LDPC Coding with PSK modulation in an AWGN channel Most of the functions are built in matlab functions found in the comm. toolbox. These can also be easily configurable in the co
penmai_V7.5
- 保证准确无误，是学习通信的好帮手，内含心电信号数据及运用MATLAB写的源代码，最大信噪比的独立分量分析算法。- Ensure accurate communication is learning a good helper, ECG data and includes source code written in MATLAB, SNR largest independent component analysis algorithm.
jienei_v48
- 最大信噪比的独立分量分析算法，在matlab R2009b调试通过，是学习PCA特征提取的很好的学习资料。- SNR largest independent component analysis algorithm, In matlab R2009b debugging through, Is a good learning materials to learn PCA feature extraction.
tao_v66
- 最大信噪比的独立分量分析算法，现代信号处理中谱估计在matlab中的使用，有均匀线阵的CRB曲线。- SNR largest independent component analysis algorithm, Modern signal processing used in the spectral estimation in matlab, There ULA CRB curve.
qiuseng_v37
- 现代信号处理中谱估计在matlab中的使用，最大信噪比的独立分量分析算法，数据模型归一化，模态振动。- Modern signal processing used in the spectral estimation in matlab, SNR largest independent component analysis algorithm, Normalized data model, modal vibration.
ask
- 利用matlab软件设计并仿真下面的无线通信系统。模拟信源为单音频信号。模拟调制方式为ASK。信道为多径信道（仿真中2径），信道中噪声为加性高斯白噪声。采用相干解调接收。画出了解调器输出端性能曲线与点信噪比SNR的关系。(Matlab software is used to design and simulate the following wireless communication systems. The analog source is a single tone signal. The
MIMOBeamformingExample
- 这个例子展示了如何用波束形成来模拟点对点MIMO-OFDM系统。多输入多输出（MIMO）组合和正交频分复用（OFDM）技术已在最近的无线标准的采用，如802.11X，提供更高的数据传输速率。由于MIMO采用天线阵，波束形成可以提高接收信噪比，进而降低误码率。(This examples shows how to model a point-to-point MIMO-OFDM system with beamforming. The combination of multiple-input-m
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
beranddistance
- 对OOK、BPSK、QPSK、16QAM、64QAM在水下信道传输的性能分析，作出信噪比-距离曲线。(The performance of OOK, BPSK, QPSK, 16QAM and 64QAM in underwater channel transmission is analyzed, and the SNR distance curve is made.)
03-2x2MIMO系统的完整数据链仿真
- % Type of different detectors, parameters for Detector.m ML = 1; % Joint ML Detector JMMSE = 2; % Joint MMSE Detector ZF = 3; % Joint Zero-Forcing Detector % Type of different antenna selection criteria methods MBER = 1; MMI = 2; LAZY = 3; MNP = 4
Selection diversity in Rayleigh fading channel
- This Matlab code is for computing the SNR improvement in Rayleigh fading channel with selection diversity.