Basic_OFDM

建立cdma蜂窝小区模型（分成小区内用户和区外用户），对初次接触CDMA信道模型编码的初学者，有很大的指导作用(Building cdma cellular cell model (divided residential users in and outside users), on the initial contact with CDMA channel model coding beginner, there is a great guide)

NLMS的matlab代码，用NLMS实现信道均衡，并且减少码间串扰(NLMS matlab code, with the NLMS to achieve channel equalization, and reduce the intersymbol interference)

病态矩阵分析 多角度阐明什么是病态矩阵 并且采用了正交化的处理来解病态矩阵(Pathological matrix multi-angle matrix and to clarify what is ill treatment by the orthogonal matrix to solve ill)

Impulse responses of systems

对变压器噪声信号的频谱分析，对比matlab中功率谱分析的各种方法，并显示频谱分析结果图(Transformer noise signal spectrum analysis, power spectrum analysis of the various methods matlab contrast and displays the results of spectral analysis chart)

eye pattern, also known as an eye diagram, is an oscilloscope display in which a digital data signal from a receiver is repetitively sampled and applied to the vertical input, while the data rate is used to trigger the horizontal sweep. It is so called because, for several types of coding, the pattern looks like a series of eyes between a pair of rails. It is an experimental tool for the evaluation of the combined effects of channel noise and intersymbol interference on the performance of a baseband pulse-transmission system. It is the synchronised superposition of all possible realisations of the signal of interest viewed within a particular signalling interval.

波达方向估计一直是信号处理的经典问题，本文利用盲子空间思想，新颖独特。(DOA Estimation of signal processing has been a classical problem, we use the blind subspace thinking, innovative and unique.)

本例用五点差分法求解一个二阶偏微分方程，其间用SOR迭代求解(This example uses a five-point difference method for solving second order partial differential equations, with the SOR iterative solution during)

voice features for the speech recognition softeare

Simple dynamic ode model describes a nutirition food web in a lake.