QPSK_tiaozhijietiao

This program calculate the conductivity of cylindrical metal nanowire using the phonon approximation in a core-shell structure, in this code, the diameter, and the metal can be changed to simulated other metals. the calculated dispersion relation of the resistivity of a single band is saved as data file. to use the program, run g_E2.m(This program calculate the conductivity of cylindrical metal nanowire using the phonon approximation in a core-shell structure, in this code, the diameter, and the metal can be changed to simulated other metals. The calculated dispersion relation of the resistivity of a single band is saved as data file. to use the program, run g_E2.m)

设计一个按照时间抽取的基2快速傅里叶变换（基2FFT-DIT）。输入倒位序，输出自然顺序。(To design a time of extraction according to the base 2 Fast Fourier Transform (base 2FFT-DIT). Input inversion sequence, the output natural order.)

Teste de reconhecimento facial

说明：  这是一个拉格朗日的插值算法的matlab的实现(This is a Lagrange interpolation algorithm to achieve the matlab)

文件中包含了LDPC码、卷积码、turbo码3种编码方式在相同码率下，性能的对比图，并且包含实验报告和各个文件功能的说明。(File contains LDPC code, a convolutional code, turbo code three kinds of encoding at the same rate, performance comparison chart, and contains test reports and feature descriptions for each file.)

说明：  计算卫星之间的可见性预测时间，输入为卫星六根数(Visibility prediction algorithm between satellites)

异步电动机数量控制完整仿真模型，可以根据实际情况写该参数，达到研究者所需要的情形(The number of complete induction motor control simulation model, the parameter can be written according to the actual situation, the researchers needed to achieve the situation)

用matlab编写的newmark－belta法求解结构动力响应(Prepared using matlab newmark-belta method for structural dynamic response)

costas环的simulink仿真模型，(costas design with simulink)

阵列信号处理中，当信号源为单频信号、干扰为单频干扰时产生的波束图(Array signal processing, when the signal source is a single frequency signal, interference for single-frequency beam pattern produced by interference)