ID 原文 译文
5354 其中,融合机场的气象信息和相关运行航班信息后,预测准确率可提高约 11%。 The prediction accuracy can be improved about 11% by fusing the weather information and the flight information of the airport.
5355 利用 CSI 的室内人员日常行为检测在无线传感网领域如火如荼地发展着, The daily behavior detection of indoor human based on CSI is developing rapidly in the field of WSN.
5356 但大多数研究仍停留在 2.4 GHz的环境下,因此在检测率、顽健性、整体性能等方面还亟待提高。 At pre-sent, most of the research is still in the environment of 2.4 GHz, so the detection rate, robustness and overall performancestill need to be improved.
5357 为解决此类问题,提出了一种基于 CSI 信号的无源室内人员日常行为检测方法 HDFi,该方法在 5 GHz 的环境下对室内人员日常行为检测进行进一步的研究。 In order to solve this problem, a passive indoor human behavior detection method HDFi (Hu-man Detection with Wi-Fi) based on CSI signal was proposed.
5358 所提检测方法分为 3 步:数据采集、数据处理、特征提取与在线检测。 The method was used to detect the indoor human dailybehavior in a 5 GHz band environment, which was divided into three steps: data acquisition, data processing, feature ex-traction, online detection.
5359 首先,实验在环境复杂的实验室及相对空旷的会议室采集典型的日常行为动作的数据; Firstly, the experiment collected typical daily behavioral data in complex laboratory and rela-tively empty meeting room.
5360 然后,提取特征较为明显的振幅和相位数据,使用低通滤波对信号特征进行处理,得到一组稳定及无噪声干扰的数据; Secondly, the amplitude and phase data with more obvious features were extracted and pro-cessed by low-pass filtering to obtain a set of stable and noise-free data, and then the fingerprint database was establishedeffectively.
5361 最后,有效建立指纹库,进行在线检测,利用 SVM 算法对采集到的数据特征进行分类,提取较为稳定的特征值,建立一个室内人员日常行为检测的分类模型,再与指纹库中的数据进行匹配。 Finally, in the real-time detection stage, the collected data features were classified by SVM algorithm to ex-tract more stable eigenvalues, and a classification model of indoor human daily behavior detection was established, andthen matched the data in the fingerprint database.
5362 实验结果表明,所提方法具有高效率、高精度、顽健性较好等特点,且无需测试人员携带任何电子设备,实用性较高。 The experimental results show that the proposed method has the char-acteristics of high efficiency, high precision and good robustness, and the method does not need any testing personnel tocarry any electronic equipment, so it has high practicability.
5363 设备到设备(D2D)和车辆到万物(V2X)技术有一定相似性,都被视为 5G 通信的重要组成部分,可为蜂窝移动通信提供备用网络服务和多种应用服务。 The related D2D (device-to-device) and V2X (vehicle-to-everything) are regarded as vital components of 5Gcommunication system, which providing alternative network services and multiple application services for cellular net-work.