Adaptive broadband beamformer for nonuniform linear array based on second order cone programming

Adaptive broadband beamforraing is a key issue in array applications. The adaptive broadband beamformer with tapped delay line （TDL） structure for nonuniform linear array （NLA） is designed according to the rule of minimizing the beamformer＇s output power while keeping the distortionless response （DR） in the direction of desired signal and keeping the constant beamwidth （CB） with the prescribed sidelobe level over the whole operating band. This kind of beamforming problem can be solved with the interior-point method after being converted to the form of standard second order cone programming （SOCP）. The computer simulations are presented which illustrate the effectiveness of our beamformer.

PHF-102柴油加氢精制催化剂工业应用效果分析

低凝柴油的加氢处理装置以常一线和常二线混合油为原料,生产国Ⅵ柴油调合组分。装置设计能力为40万t/a,操作弹性60%~110%。反应部分采用冷低分和炉前混氢流程,分馏部分采用单个分馏塔,通过加氢反应将硫质量分数降低到10×10-6以下达到国Ⅵ标准。