AlgebraMATLA

在大学生或者研究生数学建模竞赛中旅行商优化问题是一个很重要而又难解决的问题，本人自编程蚁群算法智能程序很好的解决此问题。(University students or graduate students in the Mathematical Contest in Modeling in the traveling salesman optimization problem is a very important and difficult to resolve the problem, I self-programming smart procedures ant colony algorithm to solve this problem very well.)

鱼眼镜头标定程序。国外一个学校的鱼眼镜头标定。含有标定图。可以自动提取角点并相机进行校正！(Fish-eye lens calibration procedures. Abroad, a school of fish-eye lens calibration. Containing calibration map. Can automatically extract the corner point and camera correction!)

QAM QPSK的MATLAB 仿真程序，对刚开始接触MATLAB的学者很有帮助(QAM qpsk)

说明：  MATLAB的空间决策支持系统 MATLAB的空间决策支持系统(MATLAB MATLAB spatial decision support system for spatial decision support system)

matlab中关于主成分分析的一个特经典的程序(matlab on principal component analysis, a special classic procedure)

使用低通滤波器从含有噪声的信号中提取有用的正弦波 (见实验指导书 实验九 数字滤波器中的第一题) 目的：用数字滤波器从含有高频噪声的采样数据中提取正弦信号。 要求：①输入信号为一正弦波，并加入一个白噪声的干扰来模拟信号传输中的随机干扰信号（用以模拟含有噪声采样序列）。 （模拟含有噪声采样序列具体可用正弦波信号叠加高频噪声来实现，为了使滤波效果明显，本实验的高频噪声是用高频均匀分布白噪声（Uniform）通过Butterworth高通滤波器过滤生成的，高通滤波器的截止频率设为10倍输入信号频率。） ②在程序中设计一个低通巴特沃斯滤波器，以滤除信号中的噪声分量，提取输入的正弦波信号 。 ③可调节信号滤波器的截止频率和阶数，可显示滤波前与滤波后的时域信号。 ④给出滤波前与滤波后的频谱特性的显示。 (Using low pass filter extracting useful sine wave signal containing noise(see experiment instruction digital filter in the first nine questions)Objective: to use digital filter sampling data extract containing high frequency noise sine signal.Requirements: (1) the input signal is a sine wave, and add a white noise interference to simulate the random disturbance signal of the signal transmission (to simulate contains noise sampling sequence).(simulated the sampling sequence contains noise available sine wave signal superposition of high frequency noise, in order to make the filtering effect is obvious, the experiment of high frequency noise is Uniform distribution with high frequency white noise (Uniform) by Butterworth high-pass filter to filter generated, high-pass filter cutoff frequency set to 10 times the size of the input signal frequency.)(2) in the program design a low-pass butterworth filter, in order to filter out the noise in the signal component, extract the input sine wav)

包括：1、关于STBC技术在频率选择性信道下的性能分析程序 2、对STBC性能的改进系统：STBC-OFDM系统的性能分析程序(掳 眉脌 篓 拢 潞 1 隆 垄 鹿 脴脫脷STBC 录 录 脢玫脭脷脝渭脗脢脩 隆 脭帽脨脭脨脜渭脌脧脗渭脛脨脭脛脺 脰脦枚 鲁 脤脨貌2 隆 垄 露 脭STBC脨脭脛脺渭脛 赂 脛 陆 酶脧渭脥 鲁 拢 潞 STBC-OFDM脧渭脥 鲁 渭脛脨脭脛脺 脰脦枚 鲁 脤脨貌)

Capacitive digital sensor for relative humidity and temperature(0 to 100 relative humidity range  Supply voltage: 1.7 to 3.6 V  Low power consumption: 2 μA @ 1 Hz ODR  Selectable ODR 1 Hz to 12.5 Hz  High rH sensitivity: 0.004 rH/LSB  Humidity accuracy: ± 4.5 rH, 20 to+80 rH  Temperature accuracy: ± 0.5 °C,15 to+40 °C  Embedded 16-bit ADC  16-bit humidity and temperature output data  SPI and I2C interfaces)

一种基于复合混沌映射的单向Hash函数构造(One-way Hash function construction based on composite chaotic map)

A EEG Enhancer with kalman filter enhancer