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使用matlab的仿真平台simulink来实现直接序列扩频码变换为双极性码的转换 (Matlab simulation using simulink platform to achieve the direct sequence spread spectrum code transformation for bipolar code conversion)

Calculate speed and acceleration of mechanism

matlab-jacobi实现matlab上的jacobi迭代法(Matlab- jacobi achieve the Matlab jacobi iteration)

对matlab中的常用函数进行补充，对信号处理的实现有帮助，只要将其加入默认路径就能轻松使用。(the commonly used matlab functions added that implementation of signal processing has to help, as long as its default path will be able to add easy to use.)

说明：  MATLAB辅助变量法算实例，算法简单，计算量少(Operator-assisted MATLAB instance variables, the algorithm is simple, computing less)

IIR平滑器的作用和特点演示，包括b取何值时，信号部分通过系统后不变？噪声部分是否放大了？计算NRR和系统频响 (IIR smoother presentation of the role and characteristics, including the b take what value, the signal in part through the system after the change? Whether the part of amplified noise? NRR and system frequency response calculation)

modulated_coded_symbols

验证可用，分析了该信号的时域、频域、倒谱，循环谱等,构成不同频率的调制信号。( Verification is available, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Constituting the modulated signals of different frequencies.)

多变量无约束问题的优化最优化方法之梯度下降法(Optimization of the gradient descent method)

matlab 最小二乘法 曲线拟合 excel(least squares curve fitting excel matlab)