| 1. | Acoustic vector sensor uniform linear array
声矢量传感器均匀直线阵 |
| 2. | Beamforming of uniform linear array
均匀直线阵的波束形成 |
| 3. | The performance of beamspace high - resolution direction - of - arrival ( doa ) estimation is analyzed . a dense beamspace music ( dbmusic ) algorithm for the uniform linear array ( ula ) is proposed
深入分析了波束域高分辨方位估计性能，捉出了一种基于均匀线列阵的密集波束域music ( dbmusic )法。 |
| 4. | Lake - experiment verified the correctness of this low sidelobe level beamformer . 4 . the broadband constant beamwidth beamforming vectors for a uniform linear array are designed and its effectiveness when applied to a real array is verified by water tank experiment
针对均匀分布线列阵，设计了基于chebyshev加权的宽带恒定束宽波束形成向量，消声水池实验验证了设计方法对于实际基阵的有效性。 |
| 5. | Based on theoretical studies on these algorithms , by means of computer simulation and the water tank experiment , we analyzed the performance of these algorithms in uniform linear array , which included the separation and reconstruction of source signals and doa estimation performance
在详细分析各种算法内在机理的基础上，针对均匀线列阵，通过大量的计算机仿真实验与水池实验数据处理结果，分析、讨论了几种算法对目标源信号的分离、捕获能力以及方位估计性能。 |
| 6. | The dissertation introduces the main principle of beamforming ( uniform linear array ) , analyzes and researches the theory of conventional beamforming , then analyzes some methods of modern high - resolution beamforming to some extent , discusses the relation between conventional beamforming and some modern high - resolution beamforming
本文介绍了波束形成的基本原理，对常规波束形成的原理和特性进行了分析和研究。并对现代的一部分高分辨波束形成作了一定分析，探讨了常规波束形成和现代高分辨波束形成的关系。 |
| 7. | Broadband source location method is investigated by using signal - phase - matching principle , and simulations and experiments are carried out to show the validity of the method ; two high resolution algorithms of broadband signals are proposed , which are the dft interpolation algorithm and the frequency invariant beam space algorithm . the proposed algorithms have no requirement for prior information of source locations , so the results of doa estimation can be unbiased ; a method of temporal - spatial averaging , which can improve the performance of doa estimation for uniform linear arrays , is given . this method can be applied in the most narrowband or broadband eigen - structure based high resolution algorithms
提出了利用信号相位匹配法的宽带信号方位估计方法并从仿真和实验两方面对其进行了验证；提出了基于dft插值的和基于频率不变响应波束域的两种宽带信号高分辨方位估计算法，这两种方法在进行方位估计时均不需要进行方位预估，从而避免了因角度预估可能带来的估计偏差；最后提出了一种提高均匀线列阵方位估计性能的时空平均法，该方法可适用于多数窄带或宽带的特征结构类高分辨方位估计算法中。 |
| 8. | This dissertation studies the high - speed way to apply music algorithm in an four - sensor uniform linear array ( ula ) system . ( 1 ) analyzing the disadvantages of the present algorithm based on fpga for eigen - decomposition , the dissertation proposes the mc - jacobi algorithm which is better for eigen - decomposition when using fpga
本文主要研究music算法在一个四阵元的均匀线阵的测向系统上的fpga实现问题: ( 1 )本文针对现有基于fpga实现特征值分解( evd )的算法的不足,提出更适合fpga实现特征值分解的mc - jacobi算法。 |
| 9. | In prototype system , a l - shaped non - uniform linear array with 5 elements is utilized to receive spatial signal with carrier frequency among 2 - 18ghz . the entire frequency band is decomposed into 1ghz sub - bands and then is mixed to 1ghz base band . the base band output of each antenna is sent through a synchronous 250mhz undersampling channels
在本实验系统中，我们设计了一个5阵元的l型非均匀阵列天线，将的频段划分成的子频段，然后将每个子频段混频到的处理基带后再进行的同步欠采样。 |
| 10. | In chapter 4 , a chebyshev method beamforming for uniform circular arrays ( ucas ) is proposed based on dolph - chebyshev method for uniform linear arrays ( ulas ) . this method is that it computationally efficient which makes it eminently suitable for real - time beamforming and beamstearing applications . we describe the new approach for synthesizing array patterns with guaranteed least sidelobe levels for any look direction
我们对基于均匀线阵dolph - chebyshev波束合成方法进行研究，提出了基于均匀圆阵dolph - chebyshev波束合成算法，即期望信号在任意入射角度时，均能保证同样的主瓣宽度和最小旁瓣电平的阵列方向图合成算法。 |
