全空域多目标测控天线零点约束方向图综合方法

针对全空域多目标测控天线相互干扰的问题，提出了一种基于零点约束的全空域多目标测控天线方向图综合方法。该方法对多个干扰目标方向进行零点约束，求取逼近给定方向图的最优权矢量的闭合解，生成具有干扰抑制能力的优化波束方向图。仿真结果表明，所提方向图综合方法在维持原有给定方向图特性的前提下，可在多个方向形成有效零点。在等效2 m口径全空域多目标测控实物天线对该方法开展试验验证，结果表明在干扰方向抑制能力大于60 dB,证明了方法的正确性。     

Theoretical underpinnings of consumers’ financial capability research

This paper investigates the multidisciplinary theoretical context of financial capability and provides a critical examination of 14 relevant theoretical frameworks. To this end, the paper defines financial capability and develops a new theoretical framework of financial capability termed the personal financial management system. Financial capability is defined as the capacity of consumers to undertake comprehensive financial activities and thereby achieve personal financial well-being. The exploration of financial capability includes the concepts of financial literacy and psychological financial capability, where the latter represents automatic and controlled mental processes. Recent advances in behavioural science have profoundly changed the realm of personal finances, and it is, therefore, essential to acknowledge the importance of the intuitive reasoning that shapes our financial decision making. As part of the financial management system's throughput, together with individual motivation and opportunity within the personal financial management system, financial capability forms financial behaviour. The framework identifies three groups of relevant antecedents of financial capability including sociodemographic factors, cognitive and affective factors and personality and values. By constructing a comprehensive theoretical model, this paper contributes to the literature by providing greater consistency in the definitions of capability and its related terms, encouraging academic discussion and affirming the much-needed directions for future research.     

采用FFT-PSO策略的多约束稀疏阵天线方向图综合

采用稀疏布阵的相控阵测控天线，阵元等幅激励时的阵列峰值副瓣电平无法满足指标要求。在考虑天线增益、半功率波束宽度等指标约束时设计了合适的适应度函数，并基于粒子群算法(PSO)对阵元激励幅度进行优化以降低天线副瓣电平。同时，分析了等间距栅格平面阵列天线方向图与离散傅里叶变换的关系，采用快速傅里叶变换(FFT) 降低了阵列方向图计算复杂度。仿真结果表明，该方法可有效降低峰值副瓣电平和计算复杂度。