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基于嵌入式 FPGA 的数字化硅微陀螺仪。

A digitalized silicon microgyroscope based on embedded FPGA.

机构信息

Key Laboratory for Micro-inertial Instruments and Advanced Navigation Technology of the Education Ministry, Southeast University, Nanjing 210096, China.

出版信息

Sensors (Basel). 2012 Sep 27;12(10):13150-66. doi: 10.3390/s121013150.

DOI:10.3390/s121013150
PMID:23201990
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3545561/
Abstract

This paper presents a novel digital miniaturization method for a prototype silicon micro-gyroscope (SMG) with the symmetrical and decoupled structure. The schematic blocks of the overall system consist of high precision analog front-end interface, high-speed 18-bit analog to digital convertor, a high-performance core Field Programmable Gate Array (FPGA) chip and other peripherals such as high-speed serial ports for transmitting data. In drive mode, the closed-loop drive circuit are implemented by automatic gain control (AGC) loop and software phase-locked loop (SPLL) based on the Coordinated Rotation Digital Computer (CORDIC) algorithm. Meanwhile, the sense demodulation module based on varying step least mean square demodulation (LMSD) are addressed in detail. All kinds of algorithms are simulated by Simulink and DSPbuilder tools, which is in good agreement with the theoretical design. The experimental results have fully demonstrated the stability and flexibility of the system.

摘要

本文提出了一种新颖的数字微型化方法，用于具有对称和解耦结构的原型硅微陀螺仪 (SMG)。整个系统的原理图模块包括高精度模拟前端接口、高速 18 位模数转换器、高性能核心现场可编程门阵列 (FPGA) 芯片以及用于传输数据的高速串行端口等其他外围设备。在驱动模式下，闭环驱动电路通过自动增益控制 (AGC) 环和基于协调旋转数字计算机 (CORDIC) 算法的软件锁相环 (SPLL) 来实现。同时，详细介绍了基于变步长最小均方解调 (LMSD) 的感应解调模块。各种算法都通过 Simulink 和 DSPbuilder 工具进行了仿真，与理论设计吻合良好。实验结果充分证明了系统的稳定性和灵活性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/9579a94a8334/sensors-12-13150f15.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/4f7c50332873/sensors-12-13150f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/3016421512f4/sensors-12-13150f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/50643f9d8ce3/sensors-12-13150f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/77f173c99bff/sensors-12-13150f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/1b98d8661b31/sensors-12-13150f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/ec7b3173ea07/sensors-12-13150f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/928f85323431/sensors-12-13150f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/10c011ed6e1e/sensors-12-13150f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/191a3ed51155/sensors-12-13150f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/6e089d04463b/sensors-12-13150f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/e8340dad0e71/sensors-12-13150f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/bf668253a774/sensors-12-13150f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/d18e8fa47b58/sensors-12-13150f13.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/c357bf4dac42/sensors-12-13150f14.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/9579a94a8334/sensors-12-13150f15.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/4f7c50332873/sensors-12-13150f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/3016421512f4/sensors-12-13150f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/50643f9d8ce3/sensors-12-13150f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/77f173c99bff/sensors-12-13150f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/1b98d8661b31/sensors-12-13150f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/ec7b3173ea07/sensors-12-13150f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/928f85323431/sensors-12-13150f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/10c011ed6e1e/sensors-12-13150f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/191a3ed51155/sensors-12-13150f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/6e089d04463b/sensors-12-13150f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/e8340dad0e71/sensors-12-13150f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/bf668253a774/sensors-12-13150f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/d18e8fa47b58/sensors-12-13150f13.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/c357bf4dac42/sensors-12-13150f14.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f904/3545561/9579a94a8334/sensors-12-13150f15.jpg

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