ID 原文 译文
2023 为了研究高空核爆电磁脉冲对架空管道的影响,首先通过麦克斯韦方程给出了高空核爆电磁脉冲对架空管道的耦合方程, In order to study the effects of high-altitude electromagnetic pulse on overhead pipeline, the electromagnetic field-to-overhead pipeline coupling equations are derived from Maxwell's equations.
2024 然后应用格林函数法求解微分方程得到管道上感应电流和电压的频域表达式,再应用傅里叶反变换得到电流和电压的时域波形。 The coupling equations are solved in frequency domain by applying the Green's functions, and the time-domain waveforms of induced currents and voltages are obtained byusing inverse Fourier transform.
2025 最后计算了基于 IEC 标准波形的高空核爆电磁脉冲 E2部分作用下架空管道的感应电流和电压。 Finally, the currents and voltages on the pipeline induced by intermediate-time HEMP(E2)based on IEC standard waveform are calculated.
2026 解决基于单个原子钟的系统频率准确度难以突破 10- 12量级,基于多基准时钟合成算法的系统无法同时显著改善时钟的长期稳定性和短期稳定性,难以满足未来诸多领域超高精度时钟同步需求的问题, The system frequency accuracy based on a single atomic clock is difficult to break through 10- 12level, andthe system based on multi-reference clock synthesis algorithm can't significantly improve the long-term stability and short-term stability of the clock at the same time, which is difficult to meet the requirements of ultra-high precision clock synchro-nization in many fields in the future.
2027 本文将多基准时钟合成算法和神经网络算法相结合,提出一种基于误差逆传播算法神经网络(BP 神经网络)的本地多基准时钟合成算法,可以同时改善时钟源的短期和长期稳定性。 Combined with neural network algorithm, a local multi-reference clock synthesis algo-rithm based on back-propagation neural network (BP neural network)is proposed, which can improve the short-term and long-term stability of clock source at the same time.
2028 随着物联网和体域网的飞速发展,人体运动追踪技术在医疗、安防等领域得到了广泛应用。 With the rapid development of the Internet of things and the body area network, the human motion trackingtechnology has been widely used in medical, security and many other fields.
2029 针对传统惯性人体运动追踪系统存在累积误差和漂移的问题,本文提出了一种基于 IMU/TOA 融合的人体运动追踪方法。 A human motion tracking method based onIMU /TOA fusion is proposed to solve the problem of error accumulation and drift in a single IMU human motion tracking system.
2030 通过对融合系统克拉美罗界(Cramer-Rao Lower Bound,CRLB)的推导,从理论上证明了 IMU/TOA 融合方法的有效性。 On this basis, the effectiveness of IMU /TOA fusion method is proved theoretically by deducing the cramer-rao lowerbound (CRLB)of fusion system.
2031 实验结果可以看出,本文提出的基于 IMU/TOA 融合的人体运动追踪方法,在空间性能和时间性能两个方面都有较大的提升。 The experimental results show that the proposed human motion tracking method based onIMU /TOA fusion has great improvement in both spatial and temporal performance.
2032 Galileo 系统在 E1 频点采用 Interplex 调制方式播发导航信号,由于缺乏 E1 信号功率分配和伪码序列等先验信息,一般的研究人员只能开展有限的信号质量特性研究。 Galileo system uses Interplex modulation to broadcast navigation signals at the E1 frequency. Due to thelack of prior information such as E1 signal power allocation and pseudo-code sequences, researchers can only carry out limit-ed signal quality characteristics studies.