12312chengjichaxun

快速可靠的GPS (全球定位系统)系统仿真可对双频GPS 接收机的设计、接收算法的研究 提供有效的帮助。文中详细介绍了在MatLab/Simulink 环境下GPS 系统仿真平台构建的基本方法。 首先分析了GPS 系统的各个环节，说明了各模型在仿真中的实现方法；然后给出了完整的系统仿 真框图，并在此平台上实现了GPS L2 载波相位跟踪的仿真。结果表明该仿真平台有效、可靠(Fast and reliable GPS (Global Positioning System) system simulation of dual-frequency GPS receiver design, receiver algorithm to provide effective help. Text in detail in the MatLab/Simulink environment GPS system simulation platform to build the basic method. First, we analyze the various segments of GPS systems shows that the model in the realization of simulation methods and then given a complete system simulation block diagram, and on this platform realize the GPS L2 carrier phase tracking of the simulation. The results show that the simulation platform for effective, reliable)

说明：  a file to genreate 16psk signal

FSK调制解调MATLAB源代码，很不错，值得看看(FSK modulation and demodulation MATLAB source code, very good, worth a look)

基于改进差分演化算法的石油层评价指标的特征选择(Feature improved oil layer evaluation based on differential evolution algorithm choice)

OFDM+QAM Matlab程序，详细中文注释(OFDM+ QAM Matlab procedures, details of Chinese Notes)

计算光子晶体带隙，利用平面波占开发计算光子晶体的带隙(Calculated photonic bandgap account for the development of photonic crystals using plane wave bandgap)

电力电子与MATLAB仿真，科学和工程专业的研究生做的电力电子方向有了一个良好的信息，有很多共同的电路品种是有用的，非常实用(Power Electronics and MATLAB simulation, science and engineering graduate students to do a good information on the direction of power electronics, there are a variety of common circuit is useful, very practical)

lowpass enhancement of an image

多缝弗朗和费衍射，改变缝宽和光栅常数来改变光强(Multi-slit Fraunhofer diffraction grating constant change to change the slit width and intensity)

gilbert strang Computational Science and Engineering