sum1_change

说明：  例题全部代码. 薛定宇, 陈阳泉. 高等应用数学问题的Matlab求解.(All the code examples. Xue Dingyu, Chen Yangquan. MATLAB to solve higher applied mathematical problems.)

应用matlab 分析机械力学中的工程振动问题,实例2。(Matlab applications in the engineering mechanics analysis of vibration problems, Example 2.)

4-9-1的结构ga-lm的bp算法 有示例数值 不是拟合而是预测(4-9-1 structure of ga-lm bp algorithm is not fit but there are examples of numerical prediction)

bmatch.rar文件用来解决b-mathcing问题(To solve the problem of b-matching)

matlab的中文帮助 对初学者来说是很有用的(matlab help for beginners in Chinese is very useful)

三相短路计算程序，计算任意地点三相短路后各支路电流和各节点电压(Three phase short circuit calculation program-After the three-phase short circuit in arbitrary locations, the current of each branch and the voltage of each node can be abtained.)

此程序可以产生golden序列，只要输入相应的特征多项式，就可以得到序列(This program can produce the golden sequence, as long as the input of the corresponding characteristic polynomial, you can get the sequence)

随着计算机技术的迅速发展和越来越广泛深入地应用于国民经济和社会生活的各个方面，随着 软件系统的规模和复杂性与日俱增，软件的生产成本和软件中存在的缺陷和故障造成的各类损失也 大大增加，甚至会带来灾难性的后果。软件质量问题已成为所有使用软件和开发软件的人关注的焦 点。由于软件是人脑的高度智力化的体现和产品这一特殊性，不同于其他科技和生产领域，因此软件与生俱来就有可能存在着缺陷。(With the rapid development of computer technology and the more extensively used in the national economy and social life in all its aspects, with the growing size and complexity of software systems, software production costs and software defects and faults caused various types of losses also increased significantly, even catastrophic consequences. Software quality has become the focus of all those who use the software and software development concern. Because the software is highly intellectual expression and product of the special nature of the human brain, unlike other areas of technology and production, so the software may be born with a defect exists.)

说明：  改程序对C/A码的产生进行了仿真，运行结果显示了第四颗卫星产生的C/A码(Application to the C/A code generation are simulated, operation results show that the fourth satellite produce C/A code)

非常不错的QPSK在matlab中的仿真教程，文档中包含相关的所有代码(very good QPSK in the Matlab simulation Guide, the document contains all the related code!)