主要实现c8051下fft算法，包括幅值谱，频率谱等以及不同窗函数的实现。-C8051 major achievement under the fft algorithm, including the amplitude spectrum, frequency spectrum, etc., as well as the realization of different window functions.

公司的120V并网逆变完整资料 已投入使用 包括原理图和pcb 源代码及编译好的固件 设计文档 实现了MPPT 电网幅值相位频率跟踪，并使得输出电流时钟与电网电压同相。-Company 120V grid inverter complete information has been put into use, including schematic and pcb firmware source code and design documents compiled achieve MPPT gr

AD采样滤波的若干种实现方法。如限幅法，中位值滤波法，递推平均滤波法等。-Several methods AD filtered samples for reference. Limiting Law, median filtering, recursive average filtering method. . .