CAJ | 학술논문

宽带波束形成技术广泛应用于国防建设和国民经济领域，是阵列信号处理的研究热点和难点。通过对当前研究成果的归纳和总结，综述了宽带波束形成器频域、时域和空域3种基本结构，并对比分析了其优缺点；针对时域和空域模型，分别介绍了定向宽带波束形成算法和自适应宽带波束形成算法。通过对目标函数的变换，给出了定向波束形成算法迭代优化、求逆以及特征值分解3种不同的求解方式；在自适应宽带波束形成算法中，给出了基于参考信号的自适应波束形成算法，线性约束最小方差算法，以及无约束的广义旁瓣对消器结构。最后，在宽带波束形成器结构，多径干扰抑制，盲波束形成等方面进行了展望。
관대파속형성기술엄범응용우국방건설화국민경제영역，시진렬신호처리적연구열점화난점。통과대당전연구성과적귀납화총결，종술료관대파속형성기빈역、시역화공역3충기본결구，병대비분석료기우결점；침대시역화공역모형，분별개소료정향관대파속형성산법화자괄응관대파속형성산법。통과대목표함수적변환，급출료정향파속형성산법질대우화、구역이급특정치분해3충불동적구해방식；재자괄응관대파속형성산법중，급출료기우삼고신호적자괄응파속형성산법，선성약속최소방차산법，이급무약속적엄의방판대소기결구。최후，재관대파속형성기결구，다경간우억제，맹파속형성등방면진행료전망。
With the extensive application in the field of defense construction and national economy , wideband beam-forming has already become one of the central and difficult issues in array signal processing .Three wideband beam-forming structures including frequency domain, time domain and spatial domain are presented through the re-search of current achievement.Then, fixed wideband beam-forming and adaptive wideband beam-forming algo-rithms are introduced to time domain and spatial domain structure .By the transformation for objective function, it-erative optimization approaches , inverse and eigenvalue decomposition methods are given to solve the fixed beam-forming problem.For adaptive beam-forming, the reference signal-based beam-former, linearly constrained mini-mum variance beam-former and generalized sidelobe canceller are elaborated .Finally, the future research direction such as the structure of wideband beam-former, the suppression of multipath interference and the problem of blind beam-forming are prospected .