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863计划突出国家战略目标和重大任务导向，重点落实《纲要》提出的前沿技术任务和部分重点领域中的重大任务，以解决事关国家长远发展和国家安全的战略性、前沿性和前瞻性高技术问题为核心，攻克前沿核心技术，抢占战略制高点；研发关键共性技术，培育战略性新兴产业生长点；培育和造就一批高水平人才和团队，形成一批高技术研究开发基地，提升我国高技术持续创新能力。-863 prominent national strategic objectives and significant task-oriented, fo

This paper propose an approximate closed-form expression of CFRCB, then develop two novel beamformers based on iterative implementation of this closed-form expression. Theoretical analysis and simulation results indicate that these beamformers im