ID 原文 译文
25525 采用平面栅 MOSFET 器件结构，结合优化终端场限环设计、栅极 bus-bar 设计、JFET 注入设计以及栅氧工艺技术，基于自主碳化硅工艺加工平台，研制了 1200V 大容量 SiC MOSFET 器件。 Based on CRRC silicon carbide (SiC)process technology platform, 1200V high capacity SiC metal-oxide semiconductor field-effect transistor (MOSFET) device has been fabricated by adopting ion-implanted JFET region, the optimal termination design, gate bus-bar design and gate oxidation process. The fabricated SiC MOSFET is based on a planargate structure.
25526 测试结果表明，器件栅极击穿电压大于 55V，并且实现了较低的栅氧界面态密度。 The test results show that the gate breakdown voltage of the device is above 55V and it achieves a relatively lower interface state density．
25527 室温下，器件阈值电压为 2. 7V，单芯片电流输出能力达到 50A，器件最大击穿电压达到 1600V。 At room temperature, the threshold voltage of the device is 2. 7V. The maximum blocking voltage and the output current capability of fabricated SiC MOSFET is up to 1600V and 50A, respectively．
25528 在 175℃ 下，器件阈值电压漂移量小于 0. 8V;栅极偏置 20V 下，泄漏电流小于 45nA。 At 175℃ , the threshold voltage shift is less than 0. 8V, and the gate leakage current of the device is less than 45nA when the gate voltage is 20V．
25529 研制器件显示出优良的电学特性，具备高温大电流 SiC 芯片领域的应用潜力。 All of the results show that the fabricated SiC MOSFET has superior electrical characteristics. It occupies a potential inhigh temperature and high power applications．
25530 构建准确的空间磁场是实现地磁室内定位的基础，针对传统构建模型未考虑磁场分布规律，导致其构建磁场精度差的问题，本文提出了基于磁势梯度与高斯过程的磁场构建方法。 Modeling the spatial magnetic field precisely is the basis for the geomagnetism-based indoor localization and tracking system. Traditional magnetic constructing schemes ignore the distribution of magnetic field, which causes low accuracy of the constructing magnetic field. To deal with this problem, this paper presents a magnetic field modeling method based on the gradient of the magnetic potential and Gaussian processes．
25531 首先，将磁势梯度和磁场的关系中引入高斯过程，并用平方指数核函数的空间梯度与地球磁场分布的方差和作为高斯过程核函数; Firstly, the relationship between the gradient of themagnetic potential and magnetic field is introduced into the Gaussian processes. Furthermore, the sum of the squared exponential kernel spatial gradient and geomagnetic offset field distribution variance is used as the kernel function of the Gaussian processes．
25532 然后，将带有约束的超参数优化问题转换为无约束优化问题，并利用 Rprop 算法优化超参数; By transforming the constrained hyperparameters optimization problem into an unconstrained optimization problem, we employ the Rprop algorithm to estimate the hyperparameters．
25533 最后，通过仿真分析了新方法相比于传统方法的优势，讨论了超参数对构建精度的影响，并且使用三轴矢量磁传感器，分别在小区域较强磁场异常环境、开阔区域强磁场异常环境和弱磁场异常环境中开展磁场构建实验，结果证明提出的方法能够用于真实环境下空间磁场的准确构建。 Finally, simulations are implemented to analyze the advantage of proposed method over traditional methods, and the impact of the hyperparameters on magnetic discernibility is also discussed. In addition，we carry out magnetic field constructing tests using a triaxial vector magnetic sensor in different environments, including small area relatively strong magnetic field distorted environment, strong magnetic field distorted environment, and open area weak magnetic field distorted environment, to validate the performance of the proposed method indifferent real environments. The results of the experiments prove that the proposed scheme works well in practical applications．
25534 针对数据中心网络在“多对一”并发流量模式下，TCP(Transmission Control Protocol)及其现有改进方案在单轮数据传输和多轮数据传输下吞吐率低下问题，提出了一种通过数据包标记实现丢包快速发现和快速重传并动态调整拥塞窗口初始值的策略，称为 TSL(TCP SkyLine)。 In the "many-to-one" concurrent traffic pattern of the data center networks，TCP (Transmission Control Protocol) and its existing improvements have low throughput in single-round and multi-round of data transmission scenarios. Hence, a strategy called TSL (TCP SkyLine) is proposed for fast discovering and retransmitting the lost packets through packet labelling and adjusting the initial size of the congestion window dynamically．