abs

说明：  用matlab做数字滤波器 对滤波因子加窗函数fir滤波因子的设计(Add to the filter window function fir filter design)

For inverting a matrix, Gauss-Jordan elimination is about as efficient as any other method. For solving sets of linear equations, Gauss-Jordan elimination produces both the solution of the equations for one or more right-hand side vectors b, and also the matrix inverse A(-1). However, its principal weaknesses are (i) that it requires all the right-hand sides to be stored and manipulated at the same time, and (ii) that when the inverse matrix is not desired, Gauss-Jordan is three times slower than the best alternative technique for solving a single linear set.

生成alpha 稳定噪声的程序，该程序可以用来生成四个参数的稳定噪声(produce alpha stable noise,it has four parammeters)

用频率抽样法设计的带通滤波器，程序简单易懂(Use frequency sampling method design band-pass filter , the program is easy to understand)

圆阵波束成形 实现了均匀圆阵的波速成形和波速增益(Circle Array Beamform)

用模拟退火求解非线性规划的具体例子，很有提高，希望大家能学习学习(Nonlinear programming using simulated annealing)

ldpc codes are low no. of ones and more no. of zeroes

legendshrink reduces the amount of horizontal space taken up by a figure legend by reducing the length of lines. (Best results when the legend box is off.) This is important for small plots because the size of the lines is constant irrespective of the physical size of the figure. Only works for vertical legends, for now.

a som application, for those who are new in neural network and matlab!

MATLAB在机械设计专家系统中的应用.论文 (MATLAB in mechanical design expert system application. Papers)