说明：  Null Steering Broadside Beam former自适应波束成形，使用了干扰零陷的方法。程序注释非常详细，每句语句都对应了算法的基本原理，保证可以读懂，程序运行结果正确明了
(Null Steering Broadside Beam former adaptive beam forming, the use of interference nulling method. Program notes are very detailed and end of each statement corresponds to the basic principle of the algorithm to ensure that you can read, the program runs correctly understand the results)