IEEE802.15.4a

滤波器设计代码，很好有用希望大家能够用，多多交流(Filter design code, a good hope that we can be useful, and more exchanges)

it is matlab code for produce signal

vào đ ay mà loafd matlab code

BP神经网络的网络模式识别程序包括网络训练程序chap7_2a.m和网络测试程序chap7_2b.m(BP neural network pattern recognition program networks, including network training procedures chap7_2a.m and network testing procedures chap7_2b.m)

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.)

结构分析的有限元法与MATLAB程序设计，讲述了结构有限元分析的原理，以及编程设计方法(FEM structural analysis and design of the MATLAB program, about the principles of finite element analysis, design and programming)

介绍windows程序运行原理，讲述详细，涉及到windows运行的基本流程，让读者可以总体把握，比较适合初学者阅读使用。(Introduction windows program operating principle, tells in detail, the basic process involves running windows so that the reader can grasp the whole, more suitable for beginners to read to use.)

program on BAR TRANSMISSION,CROSS TRANSMISSION, FBG SPECTRUM

线性预测编码的实现 对于初学者来说还是比较好用的

说明：  包括了基于能量检测方法的信号检测，其中采用M2M4算法进行了噪声方差估计。本程序为MATLAB仿真，可以直接应用。(this program contains the energy-based signal detection method. and the M2M4 method is used to estimate the variance of the background noise.)