为了进行军械的雷电间接效应试验,设计并实现了一种基于自动控制的雷电流A波发生器。该发生器采用恒流充电方式对电容充电,通过对放电回路的计算分析,得到了产生标准A波波形所需要的回路参数。整个装置由智能控制系统远程控制,操作方便...为了进行军械的雷电间接效应试验,设计并实现了一种基于自动控制的雷电流A波发生器。该发生器采用恒流充电方式对电容充电,通过对放电回路的计算分析,得到了产生标准A波波形所需要的回路参数。整个装置由智能控制系统远程控制,操作方便,安全可靠。试验结果表明:该发生器可产生峰值0.6~17 k A的标准雷电流A波波形,输出波形参数满足要求,为后续开展军械的雷电间接效应研究提供了设备支持。展开更多
This paper introduces the assimilation technology in an ocean dynamics model and discusses the feasibility of inverting the sea surface current in the detection zone by assimilating the sea current radial velocity det...This paper introduces the assimilation technology in an ocean dynamics model and discusses the feasibility of inverting the sea surface current in the detection zone by assimilating the sea current radial velocity detected by single station HF ground wave radar in ocean dynamics model. Based on the adjoint assimilation and POM model, the paper successfully inverts the sea surface current through single station HF ground wave radar in the Zhoushan sea area. The single station HF radar inversion results are also compared with the bistatic HF radar composite results and the fixed point measured results by Annderaa current meter. The error analysis shows that acquisition of flow velocity and flow direction data from the single station HF radar based on adjoint assimilation and POM model is viable and the data obtained have a high correlation and consistency with the flow field observed by HF radar.展开更多
文摘为了进行军械的雷电间接效应试验,设计并实现了一种基于自动控制的雷电流A波发生器。该发生器采用恒流充电方式对电容充电,通过对放电回路的计算分析,得到了产生标准A波波形所需要的回路参数。整个装置由智能控制系统远程控制,操作方便,安全可靠。试验结果表明:该发生器可产生峰值0.6~17 k A的标准雷电流A波波形,输出波形参数满足要求,为后续开展军械的雷电间接效应研究提供了设备支持。
基金supported by the National High Technology Research and Development Program of China (863 Program, No. 2002AA639480)the National Natural Science Foundation of China (No. 41067003)
文摘This paper introduces the assimilation technology in an ocean dynamics model and discusses the feasibility of inverting the sea surface current in the detection zone by assimilating the sea current radial velocity detected by single station HF ground wave radar in ocean dynamics model. Based on the adjoint assimilation and POM model, the paper successfully inverts the sea surface current through single station HF ground wave radar in the Zhoushan sea area. The single station HF radar inversion results are also compared with the bistatic HF radar composite results and the fixed point measured results by Annderaa current meter. The error analysis shows that acquisition of flow velocity and flow direction data from the single station HF radar based on adjoint assimilation and POM model is viable and the data obtained have a high correlation and consistency with the flow field observed by HF radar.
