基于互功率谱的时延估计，采用热核构造权重，数学方法是部分子空间法，是国外的成品模型，DC-DC部分采用定功率单环控制，插值与拟合，解方程，数据分析。- Based on the time delay estimation of power spectrum, Thermonuclear using weighting factors Mathematics is part of the subspace, Foreign model is finished, DC-DC power single-part set-loop control, Interpolation and fitting, solution of equations, data analysis.