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Aproximation formula used for integrals

Calendar content provider. The contract between this provider and applications.

基于SOM算法实现的文本聚类，有详细的剖析与例证，希望大家喜欢(SOM-based text clustering algorithm, has a detailed analysis and examples, I hope everyone likes)

：随着无线技术的飞速发展，频谱缺乏已经成为一个非常严重的问题．感知无线电技术能有效解 决频谱紧张的现状．介绍了感知无线电概念及其内涵，然后介绍了检测频谱空穴的方法．为提高检测概率、 降低设备复杂度及计算复杂度，将UWB与感知无线电结合，提出了基于能量检测及用户合作（EDAUC）的 协作感知方法．仿真和分析表明：该方法能有效提高检测频谱空穴的概率．(: With the rapid development of wireless technology, the lack of spectrum has become a very serious problem. Cognitive radio technology can effectively solve the spectrum tense situation. Introduced the concept of cognitive radio and its content, and then introduces the method of detection of spectrum holes. To improve the detection probability and reduces the complexity and computational complexity, the combination of UWB and cognitive radio is proposed based on energy detection and user cooperation (EDAUC) the cooperative sensing methods. Simulation and analysis: This method can improve the probability of detection of spectrum holes.)

DC-AC逆变器 DC-DC变换器 pwm控制(DC-AC逆变器 pwm控制)

Music Algorithm 2D , MUSIC, DOA, TDOA, Localization

相关函数,计算功率谱，互功率谱，相关性和相位(coherence function,Computing power spectrum, cross spectrum, coherence and phase)

This program implements equation (2.26) using the waterfilling algorithm

说明：  一本非常经典的书，INTRODUCTION TO MATLAB FOR ENGINEERING STUDENTS，国外很多著名大学学习Matlab就用的这本教材(This book, INTRODUCTION TO MATLAB FOR ENGINEERING STUDENTS, is a very good book.)

Introduction to time response