voicebox

Matlab code for supply ShipX from Hydro

Designs a linear phase FIR lowpass filter such that it: - minimizes the filter order - has a constraint on the maximum passband ripple - has a constraint on the maximum stopband attenuation (This is a quasiconvex problem and can be solved using a bisection. minimize filter order n s.t. 1/delta <= H(w) <= delta for w in the passband |H(w)| <= atten_level for w in the stopband where H is the frequency response function and variable is the filter impulse response h (and its order/length). Data is delta (max passband ripple) and atten_level (max stopband attenuation level). )

为南京邮电大学的MATLAB教程，精通MATLAB辅导与提高，内附例程。(Nanjing University of Posts and Telecommunications of the MATLAB tutorials, counseling and improving proficiency in MATLAB, enclosing routine.)

模式识别，线性分类器。经调试可用，希望可以帮到需要的人。(Pattern recognition, linear classifier. After debugging is available, the desire to help people in need.)

产生随机信号观测样本，不同信噪比和归一化频率。分别用BT法和周期图法估计功率谱密度。(Generate random signal observation samples, different signal to noise ratio and normalized frequency.Using method of BT and cycle diagram method to estimate the power spectral density.)

Handwritten digit recognition algorithm code with matlab.

There are 5sample files of qpsk, ofdm, scfde, alamouti and space time codings. those of 5samples can be useful for using matlab user.

信号的平滑处理，moving average算法，Mablab源程序(signal processing, moving average algorithm, in Mablab)

变压器局部放电的定位，运用music算法，可实现变压器中单点、两点或三点的定位(Positioning transformer partial discharge, the use of music algorithm can achieve a single point of the transformer, two or three point positioning)

基于最小错误概率的贝叶斯分类，用于数字识别分类(Based on minimum error probability Bayesian classifier for Digital Identification and Classification)