最小二乘窄带干扰消除。有用信号是一个点状目标，产生窄带干扰采样，产生高斯白噪声，设计一个M=100个系数的单步(D=1)线性预测器，再用得到的线性预测器来消除图中被干扰的信号x(n)中的噪声。-Least Squares narrowband interference cancellation. The useful signal is a target point, narrow-band interference is sampled Gaussian white noise, the de

根据a comparison of block pivoting and interior-point algorithms for linear least squares problems with nonnegative variables 编写的相关算法。包含：active-set，principal pivoting algorithms,Newton s algorithm,predictor-corrector algorithm.对于解决非负最小二乘问题非常实用，注解简单，易于操