摘要
针对任意阵列天线的方向图综合问题,提出了改进的基于线性约束最小方差准则方向图综合方法。该方法充分考虑综合方向图和参考方向图之间的相对幅度对方向图综合的影响,通过对迭代公式增加一比例常数,使得两者之间的相对幅度对干扰功率变化率的影响增强,不仅提高了干扰功率的迭代效率,即降低了迭代的次数,提高了方向图的综合效率,而且使得迭代系数的取值范围得到了扩展,即降低了迭代系数对方向图综合的影响,增强了方向图综合方法的应用范围和适用性。仿真分析验证了理论分析的正确性和所提方法的有效性。
For the problem of the pattern synthesis for arbitrary arrays, the improved pattern synthesis method based on the linearly constraint minimum variance is proposed. This algorithm takes into account the effect of the relative amplitude between synthesis pattern and its reference upon the pattern synthesis adequately, via adding a proportion constant to the iteration formula, the effect of their relative amplitude upon the changing ratio of the jammer power is strengthened, not only the iteration efficiency of the jammer power is improved, namely the iteration number is reduced, and the pattern synthesis efficiency is improved, but also the bound of the iteration coefficient is extended, namely the effect of the iteration coefficient upon the pattern synthesis is weakened, and the application area and applicability of the pattern synthesis method is enhanced. The simulation results proved its correctness and effectiveness.
出处
《电波科学学报》
EI
CSCD
北大核心
2009年第1期104-110,共7页
Chinese Journal of Radio Science
基金
国家杰出青年基金(No.60825104)
国家自然科学基金重点项目(No.60736009)
关键词
阵列天线综合
方向图综合
线性约束最小方差准则
迭代效率
antenna array synthesis
pattern synthesis
linearly constraint minimum variance criterion
iteration efficiency
