基于kaiser窗的双谱线插值FFT谐波分析，采用加权网络中节点强度和权重都是幂率分布的模型，esprit算法对有干扰的信号频率进行估计。- Dual-line interpolation FFT harmonic analysis kaiser windows, Using weighted model nodes in the network strength and weight are power law distribution, esprit algorithm signal fre