本文選題：硅微陀螺儀 + FPGA��； 參考：《南京信息工程大學(xué)》2015年碩士論文

【摘要】：硅微陀螺儀是一種新型的MEMS慣性傳感器,具有體積小、可靠性高、易于數(shù)字化、功耗低等優(yōu)點(diǎn),其在國民經(jīng)濟(jì)和國防軍事領(lǐng)域具有廣闊的應(yīng)用和發(fā)展前景。因此,研究硅微陀螺儀測控技術(shù)對提高陀螺儀精度具有重要意義。針對傳統(tǒng)硅微陀螺儀測控技術(shù)采用模擬電路實(shí)現(xiàn)具有易受干擾、受環(huán)境影響大等缺點(diǎn),本文開展基于FPGA的硅微陀螺儀數(shù)字測控電路及其關(guān)鍵技術(shù)研究,研究工作主要包括：第一,結(jié)合硅微陀螺儀基本結(jié)構(gòu)及其工作原理,分析了其在驅(qū)動和檢測兩模態(tài)下動力學(xué)方程,分析了靜電驅(qū)動原理,為數(shù)字測控系統(tǒng)的設(shè)計奠定基礎(chǔ)。第二,建立硅微陀螺儀數(shù)字閉環(huán)驅(qū)動-閉環(huán)檢測控制系統(tǒng),深入研究基于鎖相環(huán)控制頻率和自動增益控制幅度的閉環(huán)驅(qū)動原理以及基于正交、反饋校正的閉環(huán)檢測控制方案,在此基礎(chǔ)上,分別對兩模態(tài)建立Matlab/Simulink仿真模型,并驗(yàn)證其可行性。第三,在理論分析方案基礎(chǔ)上,利用Verilog HD L編寫程序?qū)崿F(xiàn)數(shù)字算法,主要包括DCO、數(shù)字PI、IIR數(shù)字濾波器以及溫度補(bǔ)償算法,設(shè)計并實(shí)現(xiàn)了以FPGA和高性能ADC、DAC為核心的硬件測控電路。第四,完成各個電路模塊的調(diào)試,并對所研制的硅微陀螺儀數(shù)字測控電路進(jìn)行性能測試,在變溫條件下對零偏和標(biāo)度因數(shù)進(jìn)行了溫度補(bǔ)償實(shí)驗(yàn),相比于補(bǔ)償前,硅微陀螺儀各項(xiàng)性能得到顯著提高,驗(yàn)證了本文所設(shè)計的軟硬件電路的正確性,為后續(xù)進(jìn)一步研究和應(yīng)用奠定了基礎(chǔ)。
[Abstract]:Silicon microgyroscope is a new type of MEMS inertial sensor, which has the advantages of small volume, high reliability, easy digitization, low power consumption and so on. It has broad application and development prospect in national economy and national defense military field. Therefore, it is of great significance to study the measurement and control technology of silicon microgyroscope to improve the precision of gyroscope. In view of the disadvantages of the traditional silicon microgyroscope measurement and control technology, such as easy to be interfered and greatly affected by the environment, the digital measurement and control circuit based on FPGA and its key technology are studied in this paper. The main works are as follows: first, combining the basic structure and working principle of silicon microgyroscope, the dynamic equations under the two modes of driving and detecting are analyzed, and the principle of electrostatic drive is analyzed, which lays a foundation for the design of digital measurement and control system. Secondly, the digital closed-loop drive-closed-loop detection control system of silicon microgyroscope is established. The closed-loop driving principle based on phase-locked loop control frequency and the amplitude of automatic gain control and the closed-loop detection control scheme based on orthogonal feedback correction are studied in depth. On this basis, the Matlab/Simulink simulation model is established for two modes, and its feasibility is verified. Thirdly, on the basis of theoretical analysis, the digital algorithm is realized by using Verilog HD L program, including DCO, digital PII-IIR filter and temperature compensation algorithm. The hardware measurement and control circuit based on FPGA and high performance FPGA is designed and implemented. Fourthly, the debugging of each circuit module is completed, and the performance of the digital measurement and control circuit of silicon microgyroscope is tested, and the temperature compensation experiment of zero offset and scale factor is carried out under the condition of variable temperature. The performances of silicon microgyroscope have been greatly improved, which verifies the correctness of the hardware and software circuits designed in this paper, and lays a foundation for further research and application.
【學(xué)位授予單位】：南京信息工程大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TP212;TN791

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相關(guān)期刊論文 前3條

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本文編號：1841166