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- An adaptive beamformer of decoherent signals for uniform circular arrays is proposed that uses real weights only without phase shift. 摘要提出了一种未经相移只采用实值权的均匀圆阵的去相干波束形成算法。
- In this paper, a robust adaptive beamformer in the presence of array imperfections is presented by improving the block matrix of the generalized side lobe canceller. 该文通过对广义旁瓣相消器的阻塞矩阵加以改进,提出了一种对阵列天线误差有良好稳健性的自适应波束形成器。
- A fast eigenspace-based (ESB) adaptive beamforming algorithm is proposed. 提出基于特征空间的快速自适应波束形成算法。
- By utilizing DOA of desired signal,the constrained steer vector was calibrated in the EigenSpace based Beamformers (ESB). This algorithm can improve the performance of adaptive beamformer. 采用此波达方向作为导向矢量 ,校正 ESB波束形成算法的约束导向矢量 ,从而提高波束形成算法的性能。 当期望信号含于相关矩阵时 ,它能够有效地抑制信号对消现象。
- DOA information can be used in initializing the weights of the adaptive beamforming. 利用DOA信息;初始化自适应波束成形的权值.
- A modified orthogonalization algo- rithm for adaptive beamforming based on improved spatial smoothing is proposed. 该算法利用修正空间平滑技术克服正交化算法不能工作于相干干扰环境的缺点;
- The performance of several adaptive beamforming algorithms are simulated and a novel blind multi-user separation algorithm - LSO-CMA is proposed. 着重对智能天线波束形成问题进行了深入分析,对各种自适应波束形成算法进行了仿真,并在此基础上提出了一种新颖的多用户快速盲分离算法(LSO-CMA)。
- Secondly, Toeplitz technique is applied to the Eigenspace-Baced (ESB) adaptive beamforming algorithm for the mode space of UCA. 结合基于特征空间的自适应波束形成算法(ESB)和圆阵模式空间概念,并把Toeplitz化技术应用于圆阵自适应波束形成中得到一种新算法,算法具有较快的收敛速度,并对相干干扰有一定的抑制作用;
- The eigenspace-based (ESB)adaptive beamforming algorithm has good performance,but it is computa- tionally expensive because of eigen-decomposition. 基于特征空间(ESB)自适应波束形成算法性能优良,但需要进行矩阵特征分解,运算量大。
- The performance of Cyclic Adaptive Beamforming (CAB) algorithm degrades severely when the estimation of the cycle frequency is not accurate. 当循环频率估计存在误差时,循环自适应波束形成算法的性能会显著下降。
- Therefore, the robustness of adaptive beamforming techniques against environmental and array imperfections and uncertainties is one of the key issues. 但是对于稳健的自适应波束形成算法,环境及天线阵列的误差和不确定性是必须要考虑的关键问题。
- In the real-time adaptive beamforming,more attention has been taken on using triangular systolic array to form an adaptive array cancellor for space interference cancellation. 在实时自适应波束形成中,用三角脉动阵列构成自适应阵列调零处理器在空域抑制干扰得到广泛的重视。
- A novel robust adaptive beamforming based on diagonal loading is proposed in this paper, aiming at robustness against steering vector mismatches in spatially colored noise fields. 该文提出了一种基于对角加载的鲁棒自适应波束形成算法,以提高空间色噪声环境中自适应波束对方向矢量误差的鲁棒性。
- The author is going to adapt his play for television. 作者将把他的剧本改编成电视剧。
- Smart antennas receive much attention recently in the communication field, and the adaptive beamforming algorithm is the key to the research about smart antennas. 智能天线是当前通信领域的研究热点之一,智能天线研究的核心内容是自适应波束形成算法。
- One should adapt oneself to the changed conditions. 我们应当使自己适应变化了的情况。
- Under ideal conditions, adaptive array signal processing methods can get excellent performance and adaptive beamformers provide an improvement in array output signal-to-interference-plus-noise-ratio (SINR) in comparison with conventional beamforming. 在理想情况下,自适应阵列信号处理在阵列流形确知时,自适应波束形成能在干扰位置形成零陷,使得阵列输出信号干扰噪声比(SINR)最大。
- Employing smart antennas in the central access point (CAP) of wireless internet access networks is studied, and a polling based adaptive beamforming multiple access protocol (PB ABFMA) is proposed. 该文研究将智能天线应用于Internet无线接入网络的中心接入点 (CAP) ;提出了基于轮询的自适应波束形成多址接入协议 (PB ABFMA) .
- The eigenspace-based beamforming(ESB) algorithm is a commonly used adaptive beamforming algorithm and most ESB methods available in published literature have been designed under the assumption that the direction of the desired signal can be known exactly. 基于特征空间波束形成算法(ESB)是常用的一种自适应波束形成算法,已提出的ESB算法大多假设期望信号方向精确已知。
- For the problem of suppressing fast following jamming in Frequency-Hopping (FH) system, a new jamming rejection method is proposed, which combines eigenspace-based (ESB) adaptive beamforming with the technique of spatial smoothing. 对跳频系统中快速跟踪干扰的抑制 ,采用基于特征空间 (ESB)自适应波束形成算法可提高波束的收敛速度 ,并与空间平滑技术相结合 ,可有效抑制与期望信号相关的快速跟踪干扰。