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这是pi_4_DQPSK的MATLAB仿真源程序，很好的仿真了这种数字调制和解调(This is pi_4_DQPSK the MATLAB simulation of source, a good simulation of this kind of digital modulation and demodulation)

MATLAB在天线方向图中的应用与研究，可以对FDTD算法参考指导使用(MATLAB in the antenna pattern in the application and research, you can use reference guide on the FDTD algorithm )

此程序能够很好的实现调频调相调幅等多种调制方式和多进制的调制。(This process can achieve the frequency modulation and amplitude modulation and other multi-band modulation.)

利用matlab的simulink进行两杆的工作空间仿真(workspace simulation using matlab)

digital signal processing

周期函数的傅立叶级数与信号重构基波与谐波(Periodic function of the Fourier series and the fundamental and harmonic signal reconstruction)

包含所有约束优化问题中涉及的matlab源程序。包含Rosen梯度法求解约束多维函数的极值，外点罚函数法解线性等式约束，外点罚函数法解一般等式约束，内点罚函数法，混合罚函数法，混合罚函数加速法，乘子法，坐标轮换法及复合形法(Contains all the constrained optimization problem involves matlab source. Contains Rosen gradient method for solving constrained multi-dimensional function extremum, external point penalty function method for solving linear equality constraints, external point penalty function method for solving general equality constraints, interior point penalty function method, mixed penalty function method, mixed penalty function acceleration method , multiplier method, the coordinate rotation method and complex method)

This is code for gravitational search algorithm

牛顿法最速下降法共轭发等最计算最优解计算方法 优化作业 简单程序(Newton method)

输入线性方程组的增广矩阵，运行就能求解出方程解~(Input linear equations augmented matrix, run out the equations can be solved ~)