334535224DQPSK

说明：   在三次样条中，要寻找三次多项式，以逼近每对数据点间的曲线。在样条术语中，这些数据点称之为断点。因为，两点只能决定一条直线，而在两点间的曲线可用无限多的三次多项式近似。因此，为使结果具有唯一性。在三次样条中，增加了三次多项式的约束条件。通过限定每个三次多项式的一阶和二阶导数，使其在断点处相等，就可以较好地确定所有内部三次多项式。此外，近似多项式通过这些断点的斜率和曲率是连续的。然而，第一个和最后一个三次多项式在第一个和最后一个断点以外，没有伴随多项式。因此必须通过其它方法确定其余的约束。最常用的方法，也是函数spline所采用的方法，就是采用非扭结(not-a-knot)条件。这个条件强迫第一个和第二个三次多项式的三阶导数相等。对最后一个和倒数第二个三次多项式也做同样地处理。 (the Cubic Spline, to find three polynomial, approaching every right to point the data curve. The kind of terms, these data points called breakpoints. Because only two points a straight decisions, and in between the two curves can be used an infinite number of cubic polynomial approximation. Therefore, in order for the outcome of uniqueness. The Cubic Spline, add the cubic polynomial bound by the conditions. By limiting each cubic polynomial of the first order and second-order derivative, it breakpoint in the same Department, we can better identify all internal cubic polynomial. In addition, the polynomial approximation of these breakpoints slope and curvature is continuous. However, the last one and a cubic polynomial in a breakpoint and the final one, not accompanied by polynomials. There)

说明：  用7次多项式进行机器人关节空间的轨迹规划(The trajectory planning of robot joint space is carried out by using 7 degree polynomial)

阿诺尔迪双纽线matlab程序 数值线性代数书上的，觉得有意思就做了一个(Arnoldi lemniscate matlab program on numerical linear algebra book, I feel interesting )

离散小波变换域非负张量分解的高光谱遥感图像压缩(Discrete wavelet transform domain of non-negative tensor decomposition of hyperspectral remote sensing image compression)

mp3 reading and writing technique used for watermarking

C#，提供C#和matlab直接的调用，使得C#能够很好的使用matlab提供的各种功能 (C#, Matlab and C# directly to the call, C# can make good use of Matlab for the various functions)

说明：  基于matlab/Simulink搭建的单相Spwm逆变器的仿真模型(Simulation model of single-phase SPWM inverter based on MATLAB / Simulink)

北工大matlab电子课件，陆续还有好多，很全的，希望大家下个痛快(err)

compute dft matrix, creates a W matrix of size N

介绍了几种稳健自适应波束形成算法，包括mvdr，对角加载，NCCB，最差性能最优化鲁棒波束形成等。(Several robust adaptive beamforming algorithms are introduced, including MVDR, diagonal loading, NCCB, worst performance optimization robust beamforming, and so on.)