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LY63S-130型垃圾压缩机的设计(LY63S-130 type garbage compressor design)

DS-CDMA-UWB and MB-OFDM-UWB system anylis

Proteus 仿真软件在单片机设计中的应用(摘 要 单片机应用技术所涉及到的实验实践环节比较多，而且硬件投入比较大。在具体的工程实践中，如果因为方案有误而进 行相应的开发设计，会浪费较多的时间和经费。Proteus 仿真软件很好的解决了这些问题，他可以象Protel 一样画好硬件原理图 与KEIL 编程软件结合进行编程仿真调试。)

这是老师的实验设计说明，对于初学者非常有用，是4个实验完整的解说(This is the teacher of the experimental design, very useful for beginners, 4 complete explanation of the experimental)

本文介绍了一种采用Altera 公司的FFT MegaCore 实现快速傅里叶变换的方法，该方法非常简单，能进一层次简化开发的流程，缩短工程开发周期，节约成本，因此在实际工程中是一种很好的应用。(This paper describes a use of Altera s FFT MegaCore fast Fourier transform method, the method is very simple and can develop into a hierarchy to simplify processes, shorten the project development cycle, cost savings, and therefore is a practical engineering good application.)

各类滤波器设计资料及相关软件的介绍说明等等(Information on various types of filter design and presentation software instructions, etc.)

说明：  Owing to the broad application value of audio watermarking in remote transmission and mobile extraction, it is very important to study watermarking approaches against A/D and D/A conversion. Based on wavelet decomposition and cepstrum technology, an audio watermarking algorithm is proposed where the low-frequency wavelet coefficients are chosen for cepstrum transforming. Then, the obtained cepstrum data shows stable for watermark hiding by the methods of edging data cutting and statistical mean modification. The synchronization is not required in the algorithm. Experimental results show that the proposed algorithm can resist on the attack of A/D and D/A successfully with features of large capacity and zero bit error. It will be helpful for the mobile audio in secure broadcast and management in the

Wide area protection system based on IEC61850 communication service model.zip

a good paper to understand the metasurface directivity

说明：  pcb设计过程中，如何最快的拉线，可以参考此文件(In the process of PCB design, you can refer to this document for the fastest cable pulling)