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四种IIR滤波器的设计与性能对比（巴特沃斯，切比雪夫I、II型，椭圆滤波器）(The four IIR filter design and performance comparison (Butterworth, cut Chebyshev I, type II, elliptic filter))

通过ucdos获得一段波长区间的模场分布，而后用matlab获得光子晶体光纤的非线性(Through the cudos get a wavelength of interval mode field distribution, then use matlab, the nonlinear photonic crystal fiber )

按照KC Ho 的一篇论文Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors_ Analysis and Solution写的仿真代码，用于3基站以上对固定目标进行定位，方法是两步最小二乘，实际上第二步完全不能用，不知道是不是自己写的有问题，欢迎讨论~(According to the paper "Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors_ Analysis and Solution" written by KC Ho, I write the code for simulation, the method is the least square, in fact, the second step is completely out of use, I do not know whether it is my problem or not, if you have any idea, welcome to discuss)

A new quick-response and high efficiency control strategy of an induction motor

FIR滤波器设计的课件，大家及时下载学习！！(FIR filter design courseware, we learn from time to download! !)

The Seismic Unix Project is partially supported by the CWP Consortium Project. In the past, the Seismic Unix Project has received partial support from the Gas Research Institute (GRI) and the Society of Exploration Geophysicists Foundation.

Sampling and reconstructing an analogue signal

无线传感器网络中基于地理位置路由算法研究的改进——基于两跳邻居节点(Wireless sensor networks to improve location-based routing algorithm- based on two-hop neighbor nodes)

leach协议matlab代码，很不错的，希望对学习leach协议的同学有帮助。(leach agreement matlab code, very good, I hope to learn leach protocol help students.)

用粒子群优化算法进行特征选择和SVM参数优化(Using Particle Swarm Optimization algorithm of feature selection and SVM parameter optimization)