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matlab code matlab code(matlab code)

iir滤波器对有噪语音滤波,在matalb上实现(IIR filter noisy speech filtering, on matalb)

说明：  介紹 MATLAB 對於聲音訊號（Audio Signal，簡稱「音訊」）的基本操作，包含讀檔、寫檔、錄音與播放。(MATLAB for voice signaling (Audio Signal, referred to as the "voice") as the basic operation, including stalls read, write stalls, sound recording and playback.)

in this package are the programs needed to solve any system of nonlinear equations

MUSIC算法[1] 是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。信号子空间由阵列接收到的数据协方差矩阵中与信号对应的特征向量组成，噪声子空间则由协方差矩阵中所有最小特征值（噪声方差）对应的特征向量组成。MUSIC算法就是利用这两个互补空间之间的正交特性来估计空间信号的方位。噪声子空间的所有向量被用来构造谱，所有空间方位谱中的峰值位置对应信号的来波方位。MUSIC算法大大提高了测向分辨率，同时适应于任意形状的天线阵列，但是原型MUSIC算法要求来波信号是不相干的。(algorithm MUSIC is a method based on matrix feature space decomposition. From a geometric point of view, the signal processing of the observation space can be decomposed into signal subspace and noise subspace, it is clear that these two spaces are orthogonal. Signal subspace by the array received data covariance matrix and signal corresponding to the feature vector and noise subspace is by the covariance matrix of all minimum feature values (noise variance) corresponding to the feature vectors are composed. MUSIC algorithm is to use the orthogonal characteristics of these two complementary space to estimate the azimuth of spatial signals. All vectors of the noise subspace are used to construct spectral, and the peak position in all spatial azimuth spectra correspond to the direction of arrival of the signal. MUSIC algorithm greatly improves the direction finding resolution, and at the same time it is suitable for the antenna array of any shape, but the prototype MUSIC algorithm requir)

实现了CA-CFAR算法仿真，得到其检测门限及检测概率曲线。并使用基于蒙特卡洛仿真方法得到检测门限及检测概率曲线，与传统的CA-CFAR算法进行了比较。(CA-CFAR algorithm to achieve the simulation, its detection threshold and detection probability curve. And use the resulting Based on Monte Carlo simulation method detection threshold and detection probability curve, with the traditional CA-CFAR algorithm were compared.)

Analyse error of imgage.

This matlab code is intended to demonstrate the physical significance/interpretation of the elements of diagonal matrix in Singular Value Decomposition (SVD). Here, multiple rows of a BIG matrix is gradually being filled with ones which means the information content is being reduced. Now, the eigenvalues and their 1st and 2nd derivatives are plotted.

该程序是在基于Haar小波的多尺度NLOS抑制算法研究中不同的NLOS环境不同分布的RMSE图及数据程序。(The program is based on the Haar wavelet multi-scale algorithm for NLOS inhibit the different NLOS environments with different distributions of the RMSE map and data program.)

地心坐标系下的经纬高坐标数据，转换为东北天坐标系下的坐标。输入为经纬高，单位为°。 matlab文件实现，调用函数名为：ECEFtoENV(Geocentric latitude and longitude coordinates of the high-coordinate data is converted to Northeast day coordinate system coordinates. Latitude and longitude input is high, the unit is.)