一種穩(wěn)健的循環(huán)時空波束形成算法
A Robust Cyclostationary space-time beamforming algorithm
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摘要: 該文提出了一種新的基于信號平穩(wěn)特性的自適應(yīng)波束形成算法穩(wěn)健的循環(huán)時空波束形成算法。該算法在利用信號的譜相關(guān)特性的同時使用了多個時延,將波束形成技術(shù)從空域擴(kuò)展到了時空域,彌補(bǔ)了空域信息的不足,充分利用了信號的循環(huán)統(tǒng)計信息和信號的時域特征,提高了信號的選擇能力和對干擾、噪聲的抑制能力。仿真實(shí)驗(yàn)結(jié)果驗(yàn)證了該算法的有效性和穩(wěn)健性。
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關(guān)鍵詞:
- 循環(huán)平穩(wěn); 自適應(yīng)波束形成; 陣列信號處理
Abstract: This paper deals with the problem of adaptive array beamforming for cyclosta-tionary signals-a novel robust cyclostationary space-time beamforming algorithm. In this algorithm, multiple lag parameters and the spectrum correlation property are used to exploit the cyclic statistical information and time domain characteristics of signals sufficiently and ef-fectively. Moreover, this method remedies the lack of space domain information, and it is an extension from space domain to space-time domain. Therefore the ability to select the desired signals and supress the noise and interfering signals is improved. The simulation results show the effectiveness and robustness of the algorithm. -
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