ID 原文 译文
24945 因此，该拓扑结构对于研发高性能三相逆变器具有借鉴价值。 Therefore, this topology structure has reference for the research and development of high performance three-phase inverter．
24946 针对传统磁梯度张量方法定位精度易受运动载体平台晃动影响的问题，本文提出了一种基于十字形磁梯度张量系统结构的磁梯度张量特征值不变量定位方法，该算法有效了克服载体平台晃动对定位精度带来的影响，并进一步分析了影响该算法定位性能的因素。 Considering that the localization accuracy of the traditional magnetic gradient tensor method is easily affected by the swaying of the moving carrier platform, we propose an improved localization method based on the eigen value invariant of the magnetic gradient tensor. The proposed method can overcome the effects on the location accuracy caused by the swaying of the carrier platform, and the factors which would affect the localization performance are analyzed as well．
24947 相比于三阶张量定位算法与多点测量线性定位算法，本文算法的代价在于AUV(Autonomous Underwater Vehicle)载体平台必须要有一次上升或下潜动作。 Compared with the third-order tensor localization method and the multi-point linear localization method, the cost of the pro-posed method is that a rising or diving action of the AUV (Autonomous Underwater Vehicle) platform is needed．
24948 仿真实验结果表明:在无环境磁干扰和平台无晃动的理想情况下，本文算法的定位精度仅次于欧拉定位法，当存在环境磁干扰时，欧拉法定位性能迅速恶化; The simulation results show that the localization accuracy of the proposed method is close to that of Euler localization method when no environmental magnetic interference and no swaying of the platform exist． However, the localization performance of Eulermethod would deteriorate rapidly when some environmental magnetic interference exists．
24949 相比于三阶张量定位算法和多点测量线性定位算法，无论环境磁干扰有无以及晃动角度多大，本文定位算法的性能皆优于两者，即使当运动载体平台晃动角度增加到 10°时，本文算法的最大定位误差也不超过 15m。 Compared with the third-order tensor localization algorithm and the multi-point linear localization algorithm, the performance of the proposed method is better, regardless of the magnetic interference or the swaying magnitude. The maximum localization error of the proposed method is no more than 15m, despite the swaying of the moving platform is increased to 10°．
24950 Ｒ 波作为心电信号中最明显的特征，常作为确定心电信号其他波段的重要依据。 As the most obvious feature of electrocardiogram (ECG), R wave is often used as an important basis to determine other bands of ECG．
24951 针对现有算法识别率低的问题，提出一种基于经验小波变换和信号结构特征的 Ｒ 波识别算法。 Aiming the low recognition rate of existing algorithms, an Ｒ-wave recognition algorithm based on empirical wavelet transform and signal structure characteristics is proposed．
24952 首先利用经验小波变换对心电信号频谱进行自适应分割，在分割区间上构造合适的小波滤波器组提取出具有紧支撑的模态分量，然后对提取出的各模态分量进行频谱分析，找出 Ｒ 波对应的高频分量并对其进行结构分析，从而实现 Ｒ 波的准确定位。 Firstly, the empirical wavelet transform is used to adaptively segment the spectrum of ECG signal, and the appropriate wavelet filter banks are constructed in the segmentation interval to extract the tightly supported modal components. Then, the spectrum of each extracted modal component is analyzed to find out the corresponding high frequency component of Ｒ wave and analyze its structure, so as to realize the accurate positioning of Ｒ wave.
24953 仿真结果表明，所提算法对心电信号 Ｒ 波识别的灵敏度达到 99. 93% ，准确率达到了 99. 92% ，阳性准确率达到 99.99% ，并且算法耗时仅 0. 68s，对 Ｒ 波具有很好的识别效果。 The simulation results show that the sensitivity, accuracy and positive rate of the proposed algorithm for Ｒ-wave recognition of ECG signal are 99. 93%, 99. 92% and 99. 99% respectively, and the algorithm takes only 0.68s with a good recognition effect for Ｒ-wave．
24954 针对蝴蝶优化算法存在的问题，提出一种融合差分变异策略并根据进化代数自适应调整权重的蝴蝶优化算法。 Aiming at the problem of butterfly optimization algorithm, this paper proposes a butterfly optimization algorithm which fuses the differential mutation strategy and adaptively adjusts the weight according to the evolutionary algebra．