2DSpringPendulum

this simulink model shows the linear voltage regulator in the closed loop and plot the charateristic plot of the same Matlab simulink model

Algorithm for Frequency estimation

DAB型全桥DC-DC变换器与3相PWM型变换器级联仿真，可用于充放电系统及新能源领域，实现能量的双向流动。(DAB full-bridge DC-DC converter with three-phase PWM converter cascade simulation model can be used to charge and discharge systems and new energy field, two-way flow of energy.)

M次方谱估计可以同时估计psk信号的码元速率和载波频率。mpsk函数和test_signal在cwt压缩包内。(M th spectral estimation can estimate the symbol rate and carrier frequency qpsk signal. mpsk function and test_signal in cwt compressed package.)

数据关联是多目标跟踪的一项关键技术。JPDA是大家公认的多目标跟踪中性能较好的数据关联算法，它 认为量测和目标是一一对应的关联关系，但在许多实际情况中，量测和目标是多一多对应的关系。针对上述情况，该文提 出了广义概率数据关联算法(Generalized Probability Data Association，GPDA)。文中从理论上对这两种算法的性能进行了 详细分析，并利用Monte Carlo技术对其性能进行了仿真比较。(Data association is one of the key technologies in multi—target tracking．And JPDA is considered as the best da· ta association method．JPDA considers the association of measurements with targets is simply one-to-one problem．But in many practical cases，the association of measurements with targets will be multiple—to—multiple problem．For this case，a Generalized Probability Data Association(GPDA)algorithm is proposed in this paper．Furthermore，this paper analyzes the performance of these two algorithms theoretically．And we give the comparative analysis of those performances by using Monte Carlo method．)

amer s noise level estimation implementation on MATLAB

Corrected as at 12/05/2003, 2102 HRS This program uses a Marching On in Time algorithm as described in equation 2.3.35 page 62 of: S. M. Rao 1999, "Time Domain Electromagnetics", Academic Press, pp. 1, 21, 58-52. ISBN 0-12-580190-4 The self term calculation uses the Equation as describled in C. A. Balanis 1997, "Antenna Theory Analysis and Design", John Wiley & Sons, p. 384 ISBN 0-471-59268-4 Note: all time units are in light meters (m/c).

QR分解的编码，可以直观的看到编码的过程(base on OR)

说明：  在matlab实现的zigbee源代码，并有相关论文做描述，比较全面(Zigbee achieved in the matlab source code, and have the relevant papers to do a description of a more comprehensive)

说明：  GSM的仿真源码,比较详细,分为模块和全信道两部分(Simulation GSM source, more detailed, divided into modules and the entire channel in two parts)