| 1. | Effect of high aluminum algaas oxidized layers on vertical - cavity surface - emitting lasers 的激光二极管线列阵光纤耦合器件 |
| 2. | This paper may be importance to the port / starboard discrimination and its tactics for the traditional towed linear array sonar 文中研究的内容对传统拖曳线列阵声纳的左右舷分辨和战术使用具有参考价值。 |
| 3. | The results of the computation show good agreement with the results presented by other computations and experiments 取有关文献资料中的拖曳线列阵进行了直航、回转运动计算,计算结果与相应文献资料中计算和试验结果基本吻合。 |
| 4. | 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。 |
| 5. | We can compensate the phase difference and subtract at the direction of ship noise , then the noise can be cancelled . the merit o f this method is simple , stable and efficient . the main contents are : 1 首先介绍了噪声抵消的一般方法,并且结合拖曳阵本舰噪声的抵消问题研究了自适应法和双线列阵相减法对本舰噪声的抑制模型及原理。 |
| 6. | Sets up three - dimensional movement modal of towed - cable , the vector dynamic equilibrium equation is expanded under local coordinate , and numerically discreted by central difference on time and space through transforming eular angle 摘要建立拖缆的三维运动模型,通过欧拉角的变换把拖曳线列阵微元段矢量动力平衡方程在局部坐标系下展开,在时间和空间上作中心差分数值离散。 |
| 7. | 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。 |
| 8. | And then , the paper analyses the reason engaged in the directional property of underwater acoustic transducer and array , discusses the physical parameter of the directional property . to point acoustic source equal spacing linear array , the dissertation makes experiment analysis and simulation 分析了水声换能器及基阵指向特性形成的原因、表征指向特性的物理参数,并针对点声源等间距线列阵的指向性进行了数学、实验分析与方针。 |
| 9. | Aimed at the port / starboard discrimination problem of the traditional single - line array , this paper mentioned some relative factors of the port / starboard discrimination method of mother ship maneuverability , and draws quantitative conclusions about the maneuvering angle and the time lag 摘要针对传统单根线列阵的左右舷分辩问题,经过深入分析,给出了本舰机动左右舷分辨方法中的一些影响因素,并对机动角度和滞后时间得出了定量结论。 |
| 10. | 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。 |