jiaoliudianjimatlab

《gps基本原理及其matlab仿真》(西安电子科技大学)里面的程序源代码，都是自己亲自敲上的。这是第5章的。对入门很有用的。(The basic principle of GPS and the matlab simulation (xi an university of electronic science and technology) in the program source code, is knock on yourself. This is the fifth chapter. The introduction is very useful. )

傅立叶变换是一种线性的积分变换，作用是把信号在时域（或空域）和频域之间变换(Fourier transform is a linear integral transform, which is used to transform signals between time domain (or space domain) and frequency domain.)

说明：  matlab代码 实现傅立叶变化 EET编程代码 解压之后修改参数运行即可(Matlab code to realize Fourier change EET programming code decompression after modifying the parameters to run)

源信号数目的估计在阵列信号处理中有很广的研究了，这个源程序是基于新一代通信环境下的源信号数目估计，如mimo——ofdm(detection the number of source signals for MIMO_OFDM)

对采样信号进行FFT变换，并计算出频域的幅值。查看变量，生成FFT曲线图.基四频域FFT算法，CCS(FFT, the sampling signal and calculate the magnitude of the frequency domain. Viewing Variables, generate FFT graph. Base four frequency domain FFT algorithm, CCS)

说明：  用于仿真舰载高频地波雷达，内含注释和部分参数(Simulation of Shipborne High Frequency Ground Wave Radar)

说明：  对 永 磁 同 步 电 机 （PMSM）驱 动 控 制 系 统 进 行 了 设 计 和 实 现 ，硬件采用 TMS320F2812 型 DSP，整个电 驱 动控 制 系 统 包 括 电源模块 、逆变模块 、控制模块 、驱动模块 、转速 、转子位置检测 、RS232 串 口 通 讯 模 块 等 ，软件采用矢量控制算法及空间矢量脉宽调制 （SVPWM）予以实现，系统采用电流、转速双闭环结构，实现了高精度调速。关键词 ：永磁同步电机 ； 矢量控制 ； 空 间 矢 量 脉 宽 调 制(The drive and control system of permanent magnet synchronous motor (PMSM) is designed and implemented. The hardware adopts the DSP of TMS320F2812. The whole electric drive and control system includes power supply module, inverter module, control module, drive module, speed, rotor position detection, RS232 serial communication module. The software is realized by vector control algorithm and space vector pulse width modulation (SVPWM). The system adopts double closed-loop structure of current and speed, and achieves high precision speed regulation. Key words: permanent magnet synchronous motor; vector control; space vector pulse width modulation)

用于实现单目标跟踪的仿真。采用单传感器单目标的方式，介绍了基本的数据关联方法。(Used to achieve single-target tracking simulation. Single-sensor single-objective way to introduce the basic method of data association.)

最大类间方差法是由日本学者大津(Nobuyuki Otsu)于1979年提出的,是一种自适应的阈值确定的方法,又叫大津法,简称OTSU。它是按图像的灰度特性,将图像分成背景和目标2部分。背景和目标之间的类间方差越大,说明构成图像的2部分的差别越大,当部分目标错分为背景或部分背景错分为目标都会导致2部分差别变小。(The largest between-class variance method was proposed by the Japanese scholar Nobuyuki Otsu in 1979. It is an adaptive threshold determination method, also known as the Otsu method, or OTSU for short. It is based on the grayscale characteristics of the image and divides the image into two parts: the background and the target. The larger the variance between the background and the target, the greater the difference between the two parts that make up the image. When the part of the target is wrongly divided into backgrounds or part of the background is mis-divided into goals, the difference between the two parts will be smaller.)

说明：  大气波导下，电磁波射频追踪研究，利用Matlab进行仿真(Radio Frequency Tracking of Electromagnetic Waves in Atmospheric Waveguide)