道尔夫-切比雪夫线阵的matlab程序实现，输入阵元数目，间距，副瓣电平要求，获取阵元激励与波瓣图(The implementation of the Matlab program of the Dove-Chebyshev line array, input array element number, spacing, sidelobe level requirements, and array element excitation and lobe diagram)