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对图像进行中值滤波处理，没有用到matlab自带函数(Binary image processing, matlab built function is not used)

说明：  （本科生课程设计）主要实现的功能是设计一个恒压恒频正弦波逆变电源，具体参数如下：单相交流输入220V/50Hz，输出单相交流电压110V/50Hz,THD<5 ,负载为一般的阻感负载，功率1500W。利用matlab中simulink实现仿真功能。(The main functions of the (undergraduate curriculum design) is designing a constant voltage constant frequency sine wave inverter, specific parameters are as follows: single-phase AC input 220V/50Hz, output single-phase AC voltage 110V/50Hz, THD &lt 5 load general resistance inductive load, power 1500W. Matlab in simulink simulation capabilities.)

根据FSK调制原理 在二进制频移键控中，幅度恒定不变的载波信号的频率随着输入码流的变化而切换（称为高音和低音，代表二进制的1和0）。来做实验 (According to the principle of FSK modulation in the binary frequency shift keying, the frequency of the carrier signal amplitude constant with the change of the input stream is switched (called treble and bass, representing a binary 1 and 0). Trequinsin)

it s used to detect circles in edge image as input by Hough transform. you can assign a region of interest (ROI) to find center of circle in it.it s effective because time of run is decreased.

说明：  本目录主要包括：文档和两个源代码。 其中一个源代码是识别程序的，另一个是一个矩阵类库的，书里面也使用过，所以一并附上。 因为已经保存了训练好的网络权值，所以第一次使用识别程序时，可以直接运行\\Release目录下的可执行文件，然后对图片目录中的测试图片进行读入、识别。 当然读者也可以自行用训练样本训练网络，不过要特别注意训练样本的选择，否则可能造成识别率很低。训练样本选择的原则是，尽可能的有代表性，在训练时间不至于太长的情况下，训练样本数目尽量多。 ( This directory includes: documentation and two source code. One of the source code is to identify the procedure, the other is a matrix class library, the book which is also used, so be attached. Because it has saved the trained network weights, so the first use of identification procedures, you can directly run \ \ Release directory of the executable files, and then tested on the images directory to read pictures, identification. Of course, readers are free to use the training samples to train the network, but pay special attention to training samples, otherwise it may cause very low recognition rate. Training sample selection principle is that as far as possible, representative, in the long training time Buzhi Yu s case, the number of training samples as much as possible. )

该报告详细介绍了Viterbi译码的方法，并分析了从卷积编码，调制，信道，解调，译码的详细步骤。(this article introduce the decoding way of convolutional code，and analysis the steps from coding ，modulating，channel，demodulating，and decoding。)

短时傅里叶程序实例，为读者提供短时傅里叶变换的入门学习与程序编写范例(Short-time Fourier instance, short-time Fourier transform to provide readers with an introduction and programming examples)

prova de sistemas web

迭代静校正的源码，辛苦写成的。关于地震剖面的校正(Source static correction iteration, hard written. Correction on the seismic profiles)

BP算法例子：用一个五层的神经网络去逼近函数(example_bpnetronetwork_5layers)