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首页> 外文会议>IEEE International Conference on Micro Electro Mechanical Systems >Adaptive On-Line Self-Calibration of Errors in Multi-Stage-Noise-Shaping (MASH) Sigma-Delta Modulator Gyroscope
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Adaptive On-Line Self-Calibration of Errors in Multi-Stage-Noise-Shaping (MASH) Sigma-Delta Modulator Gyroscope

机译：多级噪声整形（MASH）Sigma-Delta调制器陀螺仪中的误差的自适应在线自校准

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摘要

This paper introduces a novel adaptive self-calibrated multistage-noise-shaping (MASH-like) electro mechanical sigma delta modulator sensing scheme for MEMS Coriolis gyroscope. The proposed system adopts an online adaptive MASH2-0 modulator for a MEMS tuning-fork gyroscope which without using any additional mechanical calibration method. It effectively removes quantization errors that leaks through at the output due to parameters mismatching between gyroscope sensing element imperfections and interface digital modulator. It also allows the correction of spectral distortion and gain mismatch in the signal path due to non-ideal signal transfer function. Results demonstrate that the proposed adaptive MASH2-0 gyroscope achieved an inherent system stability, better dynamic range and better noise performance when compared with a common 4th-order single loop $ext{EM}-SigmaDeltamathrm{M}$ gyroscope.
机译：本文介绍了一种适用于MEMS科里奥利陀螺仪的新型自适应自校准多级噪声整形（MASH类）机电sigma delta调制器传感方案。拟议的系统采用在线自适应MASH2-0调制器用于MEMS音叉陀螺仪，而无需使用任何其他机械校准方法。它可有效消除由于陀螺仪感应元件缺陷和接口数字调制器之间的参数不匹配而在输出处泄漏的量化误差。由于非理想的信号传递功能，它还可以校正信号路径中的频谱失真和增益失配。结果表明，与常见的4相比较，所提出的自适应MASH2-0陀螺仪具有固有的系统稳定性，更好的动态范围和更好的噪声性能。 第 阶单循环 $ \ text {EM}- \ Sigma \ Delta \ mathrm {M} $ 陀螺仪。

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