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用Welch法进行功率谱估计
- 考虑L的三个不同值:L=256(3个数据段),L=128(7个数据段)和L=64(15个数据段)。各自的谱估计图如上图所示。可以明显的看到,加窗明显的减小了频谱上的假谱峰,但也更加进一步平滑了谱峰。所以,对于L=64的情况,在ω=0.8π的谱线可以很确定的辨认,但是那两个靠近的谱峰不容易区分。对于L=128的情况,这种情况提供了在分离和检测间最好的均衡。当然,对于在L=256时的情况,效果是更好的,能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外,还可以采用
随机信号功率谱分析
- 理解随机信号功率谱分析原理和方法。 (1) 生成信号,被淹没在在噪声中; (2) 试用周期图法估计信号的功率谱; (3) 选用不同窗,使用修正周期图法估计信号的功率谱; (4) 对一段语音信号,使用LD算法估计其功率谱; (5) 详细列出功率谱估计的步骤和原理。 -understanding of random signal power spectrum analysis principles and methods. (1) generate signals
signal1
- 利用ARMA、AR、MA模型,以及周期图等进行系统参数估计-use ARMA, AR, MA model and cycle map for parameter estimation system
pm_estimate
- 利用周期图法对序列的功率谱进行估计。数据窗采用汉明窗。假设在白噪声中分辨这三个不同频率的正弦信号,其相位是均匀分布在2PI的独立随机变量,而 是一个单位白噪声.生成50个长度为N=512的 的样本序列集合。 -use map cycle sequencing method of the power spectrum estimation. Data window using Hamming window. Assume that the white noise to differentiat
2Tx_2Rx_STBC_MAP
- 该文件夹为空时块码-卷积码级联系统的仿真程序,天线配置为2发2收。 主要程序的用途说明: mainMIMO_OFDMA_2Tx_Convcode.m: 主程序,设置各种参数 gendatabits.m: 生成原始信息比特数据的程序 conv_encoder.m: 卷积码编码器 interleave.m: 交织器 mod_2Tx_STBC_DFUSC_Convcode.m:调制程序 gen_SUI_CorrCIR.m: 生成信道冲击响应的程序 get_perfect
music_capon_practice
- 空间谱估计算法MUSIC算法和Capon算法的性能比较。图像有直方图和圆极化图两种-MUSIC spatial spectrum estimation algorithm and compare the performance of Capon algorithm. Image with histogram and the two circular polarization map
parzen
- 二维数据集Parzen方窗非参数估计PDF(概率密度函数),三维结果显示,有图,有完整说明文档和程序运行说明,matlab编程环境,此为模式识别小作业 parzen-Dimensional data set Parzen Window non-parametric estimation side PDF (probability density function), three-dimensional results show that map, with complete documentat
BTblackman
- 经典法,布莱克曼-图基法求谱估计,简单实用-Classical method, Blackman- map-based spectrum estimation method, simple and practical
DOA
- 此程序是有关于到达角DOA估计的代码,在很多方面都很有用-This procedure is DOA on arrival estimation code, very useful in many ways
shizhimusic
- DOA谱估计实值MUSIC算法把复数协方差矩阵映射成实数矩阵来处理,特征值分解计算量降低了75 ,实值music算法可以分辨相干信号源-DOA in real MUSIC spectral estimation algorithm to map the complex covariance matrices to deal with real, eigenvalue decomposition calculation reduced by 75 , real music algorithm ca
Affine_Conformal_Ploynomial_Transformations
- This code is written for the map transformations, affine, conformal and polynomial. It basically uses, the parameter estimation process regarding to the quality assesment.
signalanalysisZHH
- sign那个:里边有信号的傅里叶变换,功率谱分析,轴系估计图,相关分析,相干分析-sign that: a signal inside the Fourier transform, power spectrum analysis, shaft estimation map, correlation analysis, coherence analysis
peridogramse
- 本程序在MATLAB开发环境下,用周期图谱估计的方法对信号的频谱进行了估计,估计结构为两个频率分量。-The procedure developed in the MATLAB environment, with the cycle map estimation method to estimate the signal s spectrum, estimated structure for the two frequency components
Channel_Estimation_Module
- 信道估计仿真,采用了多种方法:线性插值,MMSE,1惟MMSE,2维MMSE等-Channel Estimation 1 for non-block-wise linear interpolation, 2 for block-wise 1-D MMSE, 3 for non-block-wise 1-D MMSE, 4 for block-wise 2-D MMS
estimationofdisparitymap
- code for full estimation of disparity map from two right and left image
ofdm-frequency-offset-estimation
- 一种ofdm频偏估计误差的方差MATLAB程序,可以运行,能得到结果图 -A frequency offset estimation error variance ofdm MATLAB program, you can run, can get results map
Power-spectrum-estimation
- 功率谱估计的各种方法的matlab代码 包括AR模型,ESPRIT,周期图谱,MUSIC,PISARENKO等方法-Power spectrum estimation method matlab code, including the method of AR model, ESPRIT, the cycle map, the MUSIC, PISARENKO etc.
deblurring_demo-1.0
- Bayesian Deblurring with Integrated Noise Estimation-Bayesian Deblurring with Integrated Noise Estimation Conventional non-blind image deblurring algorithms involve natural image priors and maximum a-posteriori (MAP) estimation. As a consequenc
STBC-OFDM-(included-ML-MAP-estimation)
- STBC OFDM (included ML MAP estimation),Alamouti_FD, CIR_estimation, Tx_data_signal_generator_Alamouti_FD
MiMOOfdm
- STBC OFDM (included ML MAP estimation),Alamouti_FD, CIR_estimation, Tx_data_signal_generator_Alamouti_FD
