MATLABHilbert

本课题研究设计了一个图形用户界面（Graphical User Interface，简称 GUI，又称图形用户接口），用以调用显示出心音信号的时域波形、频域波形、能量分布、心率以及一些特征信息。(This paper has designed a graphical user interface (Graphical User Interface, referred to as GUI, also known as the graphical user interface),which used to show the original time-domain waveform,amplitude waveform, energy distribution,,heartrate and some characteristic information.)

这是一个基于LZARI算法的数据压缩的类.Haruhiko Okumura 于1989年7月4日用C语言写实现了这个算法.但是上面用到了一些全局或静态的变量,在MFC下用起来很不方便.作者把它改写成了一个C++类,使它可以方便的压缩和解压缩。(LZARI algorithm based on the type of data compression. Haruhiko SAP in 1989, July 4 C language daily wrote realization of this algorithm. But above uses some static or global variables, using the MFC which are very convenient. Authors rewrite it became a category C, it can be to facilitate the compression.)

说明：  电力系统的频率反映了发电机组所发出的有功功率与负荷所需的有功功率之间的平衡情况。当系统发生较大事故时,系统出现严重的功率缺额,其缺额值超出了正常热备用可以调节的能力,这时即使令系统中运行的所有发电机组都发出其设备可能胜任的最大功率,仍不能满足负荷功率的需要,所引起的系统频率下降值将远远超出系统安全运行所允许的范围。 在这种情况下从保障系统安全运行的观点出发,为了保证电网安全和对重要用户的供电,不得不采取应急措施,切除部分负荷,以使系统频率恢复到可以安全运行的水平内。(The frequency of the power system reflects the balance between the active power generated by the generating unit and the active power required by the load. When the active power from the power plant does not meet the requirements of users, the system frequency will decrease. Frequency fluctuation caused by unplanned load in normal operation of the system. At this time, the system uses the hot standby capacity of the power plant, that is, the generator capacity in the system operation is enough to meet the needs of users. However, when the system has a major accident, the system has a serious power shortage, which is beyond the adjustable capacity of normal hot standby. At this time, even if all the generating units operating in the system send out the maximum power that their equipment may be competent for, they still cannot meet the demand of load power rate, and the resulting system frequency drop value will be far beyond the allowable range of safe operation of the system.)

说明：  提供JPEG标准压缩压缩的编码解码过程，90%以上的代码有注释，配有GUI设计。代码能够运行，但可能只起到借鉴的作用。(Provide JPEG standard compression coding and decoding process, more than 90% of the code is annotated, with GUI design. Code can run, but it may only serve as a reference.)

对ZIP文件进解压以及压缩,提供C、C++形式的接口(Unpack the ZIP file, and compressed into)

基于contourlet的图像压缩编码，其中包括计算PSNR值，压缩比和运行时间(Contourlet-based image compression coding, including the calculation of PSNR values, compression ratio and run-time)

利用哈夫曼树对简单文件进行压缩和解压缩，对数据的压缩集成(Compression and Decompression of Simple Files Using Huffman Tree)

说明：  霍夫曼编码解码，实用程序，源程序，只用好用，通用。(Huffman encoding and decoding, utilities, source code, using only easy to use, universal.)

说明：  c语言环境下的 哈夫曼编码的串行程序(c language environment Huffman serial procedures)

attempt to do Difference of gaussian in image processing