ID |
原文 |
译文 |
52437 |
对以后的工程设计具有重要的参考价值。 |
The proposed measurement method has important reference value in future engineering design. |
52438 |
针对无人机的空地信道环境,提出一种空对地通信环境下的三维椭圆柱无人机多输入多输出信道模型。 |
Aiming at the air-to-ground channel environment of Unmanned Aerial Vehicle (UAV) , this paper presents a MultiInput Multiple-Output (MIMO) channel model for Three-Dimensional (3D) elliptical column UAV in air-to-ground communication environment. |
52439 |
基于所提信道模型研究了发射机的移动性和高度,并且在考虑地面和路边环境反射的情况下研究了所提信道模型的统计特性。 |
In this paper, the mobility and height of the transmitter are studied based on the proposed channel model. The statistical properties of the proposed channel model are studied by considering the reflection of the ground and roadside environments. |
52440 |
实验结果表明,所提模型的信道统计量与以往的通信信道结果一致。 |
Finally, the numerical results show that the proposed channel statistics are consistent with the previous communication channel results. |
52441 |
总体而言,由空间相关函数表示的所提信道模型为研究无人机信道通信系统提供了新颖且实用的方法。 |
The proposed channel model represented by spatial correlation function provides a novel and practical method for the study of UAV channel communication system. |
52442 |
为提高多径条件下无线信道测量中的时延估计精度,结合匹配滤波、方位估计方法 (MODE) 以及基于加权傅里叶变换和松弛 (WRELAX) 算法,提出了一种具有额外根的方位估计与基于加权傅里叶变换和松弛法算法的融合 (MODEX-WRELAX) 算法,并给出了相应的算法推导。 |
In order to improve the accuracy of time delay estimation in wireless channel measurements under multipath conditions, a combination of matched filtering, Method of Direction Estimation (MODE) , and Weighted Fourier transform and RELAXation based (WRELAX) are studied. This paper proposes a MODE with extra Roots, which is based on WRELAX (MODEX-WRELAX) algorithm. The corresponding algorithm derivation is also presented in this paper. |
52443 |
新算法既可以分辨多径时延,又能很好地抑制噪声以及强干扰。 |
The new algorithm can not only resolve multipath delay but also suppress noise and strong interference well. |
52444 |
对新算法进行仿真实验,仿真结果表明,新算法提供了比MODE、WRELAX以及MODE-WRELAX算法更高的精度和分辨率, |
Simulation results show that this method provides higher accuracy and resolution than MODE, WRELAX, and MODE-WRELAX algorithms. |
52445 |
且新算法可以接近相应的克拉美罗界限 (CRB) 。 |
It also shows that the MODEX-WRELAX algorithm can approach the corresponding Cramer-Rao Bound (CRB) . |
52446 |
在移动自组织网络中节点自私性难辨,而自私节点不尽全力转发数据会降低网络的可靠性。 |
In self-organizing networks, nodes are less self-identical, while self-serving nodes do not do their best to forward data to reduce the reliability of the network. |