makeFFTsec

惯性导航粗对准，内有陀螺和加速度计真实采集数据供调试和验证。 原理来源-<惯性导航>－秦永元，略有修改，编译环境matlab(Inertial navigation rough alignment with a gyroscope and accelerometer data collection for the real debug and validation. The principle sources- <inertial navigation>- QIN Yong-yuan, a slight modification, the compiler environment matlab)

This code uses the output from make_zeta.c file i.e. it uses the displacement of any particular isotherm and outputs the time series of the displacement to zetafile??degC.dat file. Furthermore, this code filters the isotherm displacements, plots the filtered and raw signals at certain specified locations and then creates maps of the isotherm displacement time series

主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)

本篇文章是介绍雷达系统中脉冲压缩的有关理论，是雷达学习的重要一章(This article is to introduce the pulse compression radar system in the theory, is an important chapter of the radar study)

将百分制的学生成绩转换为五级制的成绩输出(The percentile of the student achievement scores is converted to five-tier system of output)

能用来求解QCQP等优化问题，简单实用。内附说明书。(using for optimal problems like QCQP, and it s easy to use.)

免疫算法解非线性方程组matlab源程序，很好用(immune algorithm for solving systems of nonlinear equations Matlab source, easy to use)

AAM is Active Aapearance Model that can be used for face tracking

该程序仿真了基于三相逆变器的空间矢量PWM。可以在示波器上看到线电压，相电压和滤波电压。调制指数、DC电压和频率参数可以修改。(The program simulates the vector PWM space-based three-phase inverter. You can see the line voltage, phase voltage and filtering the voltage on an oscilloscope. Modulation index, DC voltage and frequency parameters can be modified.)

关于MATLAB的讲习，matlab编程，以及基本函数的使用，对入门学习者有帮助，(Workshop on MATLAB, matlab programming, as well as the use of basic functions, to help learners of entry,)