andbook(感谢plusminus_http://www.anddev.org/)

today I announce andbook! , which is a document that shows how to start coding for Android without having any Android-knowledge before. This is the cover:


The book is thought to be a summation of easy to follow tutorials, which can be found here on anddev.org (and on other pages).

Warning The only problem is: I've got no time to complete it. Crying or Very sad Warning


Idea So this is my idea. If someone could advise me in licensing-issues I would make this a kind of open-document, what means, that it would become a community-product, paying respect to all the contributors. (Note: It would have become free anyway)

So if you want to have a look into what has been done so far. (Note: That version of the document was never meant to be publicized!)

Download andbook! (1,6MB): Damn early preview...

The content was a.) self-written or b.) taken from Google
Wink Not the font is big, but it was written for A5-Paper (common-book-size)


Arrow Let me know, whether you want to contribute in any way. (Even if you want to take the "chief-writer"-role!)
通过短时倒谱(Cepstrogram)计算进行时-倒频分析研究(Matlab代码实现)内容概要:本文主要介绍了一项关于短时倒谱(Cepstrogram)计算在时-倒频分析中的研究,并提供了相应的Matlab代码实现。通过短时倒谱分析方法,能够有效提取信号在时间与倒频率域的特征,适用于语音、机械振动、生物医学等领域的信号处理与故障诊断。文中阐述了倒谱分析的基本原理、短时倒谱的计算流程及其在实际工程中的应用价值,展示了如何利用Matlab进行时-倒频图的可视化与分析,帮助研究人员深入理解非平稳信号的周期性成分与谐波结构。; 适合人群:具备一定信号处理基础,熟悉Matlab编程,从事电子信息、机械工程、生物医学或通信等相关领域科研工作的研究生、工程师及科研人员。; 使用场景及目标:①掌握倒谱分析与短时倒谱的基本理论及其与傅里叶变换的关系;②学习如何用Matlab实现Cepstrogram并应用于实际信号的周期性特征提取与故障诊断;③为语音识别、机械设备状态监测、振动信号分析等研究提供技术支持与方法参考; 阅读建议:建议读者结合提供的Matlab代码进行实践操作,先理解倒谱的基本概念再逐步实现短时倒谱分析,注意参数设置如窗长、重叠率等对结果的影响,同时可将该方法与其他时频分析方法(如STFT、小波变换)进行对比,以提升对信号特征的理解能力。
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