shujuchuandi

雷达系统中用于计算起伏目标的检测概率，适用于Swerling II型目标。(The radar system used to calculate the undulation target detection probability, applies Swerling II target.)

基于MATLAB利用Particle-in-cell模型,对梯形管内壁等离子体离子注入过程,进行了二维数值模拟.计算结果表明在中心电极附近出现了“阳极鞘层”,该鞘层内部不存在离子,而且在鞘层边缘离子密度最高.在上下管壁上的离子注入剂量呈现“m”形分布.通过对注入过程中等离子体密度分布和不同时间段管壁不同位置离子注入剂量的跟踪,发现“阳极鞘层”扩展行为是导致“m”形分布的原因.由于梯形管形状的不对称性,“阳极鞘层”的边缘向梯形长底方向扩展较快.在注入初始时刻离子注入的能量很低,随着时间延长离子能量逐渐升高,这是由离子初始位置决定的.可见梯形管自身形状决定了鞘层形状和最终的离子注入能量和剂量分布.(Based on MATLAB use Particle-in-cell model, the trapezoidal pipe wall plasma ion implantation process, the numerical simulation of two-dimensional calculation results show that in the vicinity of the center electrode to a "anode sheath," which does not exist inside the plasma sheath, and the highest in the sheath edge ion density ion implantation dose showing the upper and lower walls of the "m"-shaped distribution through the process of injecting the plasma density distribution and the wall at different locations in different time periods ion implantation dose tracking, found that "anode sheath "extension behavior is leading to" m "-shaped distribution of the reasons due to the asymmetry of the trapezoidal shape of the tube," Edge anode sheath "extension to the end of a long trapezoid direction quickly in the initial moment of implantation energy ion implantation is low ion energy with time gradually increased, which is determined by the initial position of the ion. visible trapezoida)

generate primary users in cognitive radio

matlab的数学建模方法，包含了许多重要的数学建模方法的matlab实现，非常实用(matlab mathematical modeling methods, including a number of important methods of mathematical modeling matlab implementation, very useful)

精通MATLAB与C和C++混合程序设计第一章(Proficient in MATLAB and C and C++ hybrid program)

QPSK的基本结构原理与噪声下的SNR,这是最基本的方式(qpsk，basic construction and noise)

good resource code for people to get better performance.such as ssim,rmse etc.

calculating the line integral contour of the iris and pupil boundaries. this fuction is used in the daugman approach of iris localization.

实现数字接收机的基本功能,包括信道均衡，载波恢复，同步恢复，匹配滤波器等(The basic functions of digital receivers，Including channel equalization, carrier recovery and synchronization recovery, the matched filter )

the encoder and decoder of Linear block code