ID 原文 译文
18375 电磁涡旋因携带轨道角动量而具有高维可调制自由度，被引入无线通信中以提升频谱效率和抗干扰能力。 Electromagnetic vortices are introduced into wireless communication to improve spectral efficiencyand anti-interference capability.
18376 该文首先介绍了轨道角动量和电磁涡旋的基本原理与特性； In this paper, the basic principle and characteristics of Orbital AngularMomentum (OAM) and electromagnetic eddy are introduced firstly.
18377 然后比较了电磁涡旋的产生方法，给出了超表面产生轨道角动量的工作原理，综述了基于超表面的轨道角动量产生方法和研究现状； The principle of generating Orbital Angular Momentum from supersurface is given, and the methods and research status of generating orbital angular momentum based on supersurface are summarized.
18378 总结了轨道角动量的传输性能、接收与检测方法、复用与解复用性能； The transmission performance, receiving anddetecting method, multiplexing and demultiplexing performance of orbital angular momentum are summarized.
18379 最后讨论了未来在应用无线通信轨道角动量时需要解决的关键问题。 Finally, the key problems to be solved in the future application of wireless communication orbital angularmomentum are discussed.
18380 声学导航技术被广泛应用于水下机动平台的自主导航。 Acoustic navigation technology is widely used for autonomous navigation of underwater mobileplatforms.
18381 常用的声学导航模型多为圆交汇模型，该模型结构简单，计算方便，但未考虑平台运动影响，是一种静止模型。 The commonly used acoustic navigation models are mostly circle intersection models. The model issimple in structure and convenient in calculation, but it does not consider the influence of platform motion. It is a static model.
18382 平台运动条件下，平台接收各水下声信标(水下星站节点)的时间及所处空间位置不同，即时间和空间存在差异性，会产生模型失配，影响导航精度。 Under the condition of platform motion, the time when the platform receives each underwateracoustic beacon (underwater star station node) and the spatial position of the platform are different, that is,there is a difference in time and space, which will cause model mismatch and affect navigation accuracy.
18383 针对上述问题，该文推导了由平台运动造成的模型失配误差公式，定量分析了运动对导航精度的影响以及误差的空间分布规律，着重研究了航速、航向角等航行参数对导航精度的影响规律，并进行了仿真验证。 Aiming at the above problems, this paper deduces the formula of model mismatch error caused by platform motion, quantitatively analyzes the influence of motion on navigation accuracy and the spatial distribution oferror, and focuses on the influence of navigation speed and heading angle on navigation accuracy.
18384 研究结果表明：仅考虑平台运动的影响时，声学导航圆交汇模型的失配误差存在，且与平台在阵内的空间位置有关，其导航精度空间特性呈近似的同心椭圆分布； Thesimulation verification is carried out. The results show that the mismatch error of the acoustic navigation circleintersection model exists only when considering the influence of the platform motion, and it is related to thespatial position of the platform in the array.