基于FPGA的硅微机械陀螺仪数字化驱动电路研究

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为了进一步提高硅微机械陀螺仪的性能,提出了一种基于FPGA数字信号处理来实现控制的数字化驱动电路.该设计方案通过AGC环路稳定了驱动幅度,并用SPLL对相位进行了控制以跟踪谐振频率.两主要环路以FPGA为硬件基础,用软件编程实现,相较模拟驱动电路在实际应用中更具灵活性.实验给出了该电路的驱动幅度和频率漂移曲线,证明了该电路可以较好的实现硅微机械陀螺仪的驱动.
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