ex3

for fast optimize programming in matlab

PLS分类，主要用于多数类与少数类的分类。(pls classifier)

通信中的采样钟恢复，用gardner 算法提取时钟误差。(STR for sampling Time recovery)

说明：  matlab的一些简单使用，口输入不加扩展名的文件名，该文件必须在当前搜索路径中，例如输(matlab)

In this paper, the impact of clipping noise on optical wireless communication (OWC) systems employing orthogonal frequency division multiplexing (OFDM) is investigated. The two existing optical OFDM (O-OFDM) transmission schemes, asymmetrically clipped optical OFDM (ACO-OFDM) and directcurrent- biased optical OFDM (DCO-OFDM), are studied. Time domain signal clipping generally results from direct current (DC) biasing and/or from physical limitations of the transmitter front-end.

奇异谱分解技术，与相空间重构相结合，对信号进行降噪处理(Singular spectrum analysis technology, combined with the phase space reconstruction of signal noise reduction)

matlab是集数学计算、图形处理和程序语言设计于一体的软件，通过matlab来实现数字信号处理的有关表达，最终实现课程设计的目的。(matlab is a mathematical calculation, graphics processing and programming language design software integrated through matlab to realize the digital signal processing of expression, and ultimately realize the purpose of curriculum design.)

本文对偏振光干涉理论进行了MATLAB 设计与仿真，在分析偏振光干涉现象模型的基础上，运用MATLAB 工具实现了偏振光干涉现象的计算机仿真，使这一抽象而复杂的物理现象变得直观、简单，且容易理解。(Polarized interference theory, design and simulation of MATLAB, polarized interference computer simulation using MATLAB tool based on the analysis of polarized light interference phenomenon model so abstract and complex physical phenomena become intuitive, simple, and easy to understand.)

说明：  线性调频z变换matlab实例；matlab的czt()函数实现频率细化的实例(What I said has been said in Chinese.What do you want from me)

Speech compression using Linear Predictive Coding. LPC is the oldest and the most basic of modern speech coders. Its a lossy scheme. Playback quality isn t preserved in the process but it can be used in low bit-rate systems.