huadongshijianchuang

分子动力学计算软件lammps的学习资料。(Molecular dynamics calculation software lammps learning materials.)

3、 瑞利信道中的调制解调、信道估计： (1) 请推导出单径瑞利信道中的BPSK相干解调的理论误码率性能，并画出比特信噪比与误码率的关系曲线。 (2) 在单径瑞利信道中，请设计一种时分的导引辅助的信道估计方法，用Simulink进行仿真，测量BPSK的误码率性能，画出比特信噪比与误码率的关系曲线，并与(1)的曲线进行对比。 (3, the Rayleigh channel modulation and demodulation, channel estimation: (1) Please derive the single-path Rayleigh channel coherent demodulation of BPSK BER performance theory, and draw the signal to noise ratio and bit error rate curves. (2) single-path Rayleigh channel, please design a division of the guide-assisted channel estimation method, using Simulink simulation, measurement of the BER performance of BPSK, draw-bit signal to noise ratio and bit error rate curve, and with (1) of the curves were compared. )

说明：  Manchester码的编码规则是，如果原始数据为“1”，将其编码成“10”；如果原始数据为“0”，将其编码成“01”。这种编码的特点是每个码元中间都有跳变，低频能量较少，便于接收端提取时钟信息。(Manchester, the coding rule is, if the original data is &quot 1&quot , be coded &quot 10&quot if the original data is &quot 0&quot , be coded &quot 01.&quot This code is characterized by the middle of each symbol has a jump, low energy less easy to extract the clock information on the receiving end.)

模型算法控制(DMC)是非常有效的控制算法，他采用单位节约相应序列作为模型，并使用增量式控制，可以消除控制系统的稳态误差，应用非常广泛。(Model algorithmic control (DMC) is a very effective control method, he used the units to save the corresponding sequence as a model, and use the incremental control, can eliminate the steady-state error control system, is widely used.)

相干信号的DOA估计，MUSIC算法与MMUSIC算法的测向功能对比(DOA estimation of coherent signals, compared with MMUSIC algorithm MUSIC algorithm finding function)

am仿真实现的matlab程序，一共有五个，现分别上传。此程序均为本人及同事呕心沥血所编，现拿来与朋友们分享。(am realize the matlab simulation program, a total of five, are, respectively, upload. This procedure and I are prepared by dedicated colleagues are used to share with friends.)

产生alpha序列alpha的范围在0到2之间(general alpha sequence)

说明：  应用matlab实现对统计分析中的主成分分析方法，高效实现对输入变量的降低维数，同时(Application matlab realize the principal component analysis statistical analysis, efficient implementation of reduced dimensionality of the input variables, while)

先进PID控制 MATLAB仿真 第2版 刘金琨等编著和书中的所有程序，模糊控制及其MATLAB应用 张国良，是很好的学习模糊控制的资料。(Advanced PID control of MATLAB version 2 Jin-kun liu huang, and all the procedures of the book, such as fuzzy control and its application MATLAB RON cheung, is a very good learning fuzzy control information.)

matlab完美解决旅行商问题。蚁群算法。(traveling salesman problem matlab perfect solution. Ant colony algorithm.)