4--interpolation-routines

数字信号的Matlab仿真程序，包括常用的数字信号调制解调过程。(51 SCM-related tutorials, very good, good view, very useful!)

遗传算法解决旅行商问题遗传算法解决旅行商问题(Genetic algorithm to solve traveling salesman problem genetic algorithm to solve traveling salesman problem)

语音信号进行分析、处理和设计。用MATLAB做变声器的原理是通过改变输入声音频率，进而改变声音的音色、音调，使输出声音在感官上与原声音不同。变声器是借助对声音音色和音调的双重复合改变，实现输出声音的改变。通过自己发声，共振峰频率的改变是基于重采样实现的(Speech signal analysis, processing and design. MATLAB do voice-changer works by changing the input frequency of the sound, and then change the sound of the tone, pitch, so that the output audio with the original sound in different senses. Voice Changer is the use of sound timbre and tone of the dual composite changes, realize the output sound changes. Through their own sound, formant frequency change is implemented based on resampling)

An electric wheelchair uses a motor with a torque constant of 1.1 Nm/A, powered from a 24 V battery, with an internal resistance of 0.25Ω. We are interested in designing a controller with 44 Nm continuous torque capability, both in driving and braking modes at all speeds, with the widest possible operating speed range, both forward and reverse direction using the given battery.

kalman滤波及坐标转换 包括笛卡尔坐标与极坐标，gauss噪声，地理坐标和ECEF坐标转换函数(kalman filter)

marginal_hht, marginal_power_hht,phase difference

加边函数，外扩原图像，matlab算法程序(Bordered function, external expansion of the original image, matlab algorithm program)

Digital filter implementation examples

这些资料都是有关数学建模所用的SPPS软件的资料，希望对大家有帮助。(These data are used for mathematical modeling of SPPS software information, we want to help.)

matlab软件下常用的函数与常用指令，在使用matlab时可用于查询相关函数与指令(matlab software used under the commonly used functions and commands can be used when using the matlab functions and commands relevant to a query)