摘要
本文先给出加权稀布阵列的最佳阵元位置的一般解和这种最佳阵列的栅瓣电平,然后讨论采用广义升余弦加权的情况;分析了采用这种加权的最佳稀布阵列的性能,导出了效率指教、栅瓣电平、波束宽度和干净扫描区宽度的闭型表达式,得到了一种具有任意近轴旁瓣电平和干净扫描区宽度的最佳稀布阵列的简单方法。最后讨论了这种稀布阵列的一个应用。
A general resolution for the optimum element locations o(?) weighted thinning array and the grating lobe level of the optimum array are firstly presented. Special attention is then paid to the array weighted by general raised cosine function. The properties of the optimum thinning array with this weighting are analyzed. The closed-form expressions for the efficiency index, grating lobe level, beamwidth and clean region width are also given. As a result, a simple design method of optimum thinning arrays with any desired nearby (mainlobe) sidelobe level and clean region width is obtained. Finally, an application of the thinned arrays is briefly discussed.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1990年第5期34-39,共6页
Acta Electronica Sinica
