光纖陀螺儀信號處理與溫度補償?shù)难芯?/H1>
發(fā)布時間：2018-10-09 19:35
【摘要】：光纖陀螺是一種基于Sagnac效應(yīng)的新型全固態(tài)慣性測量傳感器，因其結(jié)構(gòu)緊湊、精確度高、抗干擾能力強、啟動時間短、壽命長等優(yōu)勢，使得光纖陀螺擁有十分廣闊的發(fā)展前景；本文結(jié)合前人對光纖陀螺的研究經(jīng)驗，設(shè)計了以FPGA為核心的數(shù)字雙閉環(huán)干涉式光纖陀螺系統(tǒng)，，并在光纖陀螺數(shù)字信號處理、硬件平臺開發(fā)、軟件系統(tǒng)設(shè)計實現(xiàn)以及離線溫度補償方法上做了較為深入的研究；具體開展的研究工作如下： 首先，本文概述了光纖陀螺的發(fā)展歷程、研究現(xiàn)狀以及技術(shù)特點；以干涉式光纖陀螺為研究對象，在介紹了光纖陀螺的基本原理-Sagnac效應(yīng)基礎(chǔ)上，著重分析了干涉式光纖陀螺的信號檢測方案，并針對由Y波導(dǎo)集成光學(xué)器件隨溫度變化而產(chǎn)生調(diào)制增益誤差的問題，設(shè)計了數(shù)字雙閉環(huán)信號檢測控制方案。 其次，本文通過深入研究分析對比了方波偏置調(diào)制方案與雙方波調(diào)制方案的優(yōu)缺點，最終選擇了對交叉干擾抑制效果更好的雙方波調(diào)制解調(diào)方案；然后根據(jù)光纖陀螺輸出干涉信號的特點與信號檢測系統(tǒng)設(shè)計的要求，完成主要元器件的選型、硬件電路的設(shè)計以及PCB板的繪制焊接，進而利用Verilog HDL硬件描述語言完成軟件系統(tǒng)的設(shè)計，并對系統(tǒng)軟、硬件進行組合測試。 最后，本文闡述了粒子群與混沌粒子群算法的基本原理，通過Matlab仿真對比分析了混沌粒子群算法較普通粒子群算法的性能優(yōu)勢，進而給出了基于混沌粒子群優(yōu)化的BP神經(jīng)網(wǎng)絡(luò)的訓(xùn)練方法，并采用混沌粒子群優(yōu)化的BP神經(jīng)網(wǎng)絡(luò)算法對光纖陀螺進行離線溫度補償，補償結(jié)果表明該方法能夠較為快速準(zhǔn)確的擬合陀螺零偏與標(biāo)度因數(shù)隨溫度變化的規(guī)律，降低了零偏與標(biāo)度因數(shù)溫度誤差產(chǎn)生的角速度輸出誤差。
[Abstract]:Fiber optic gyroscope (fog) is a new all-solid-state inertial measurement sensor based on Sagnac effect. Because of its compact structure, high precision, strong anti-interference ability, short start-up time and long life, fiber optic gyroscope has a very broad development prospect. Based on the previous research experience of fiber optic gyroscope (fog), a digital double closed loop interferometric fiber optic gyroscope (fog) system with FPGA as the core is designed and developed in the digital signal processing and hardware platform of fog. The design and implementation of the software system and the off-line temperature compensation method are studied deeply. The specific research work is as follows: firstly, the development history, research status and technical characteristics of fiber optic gyroscope (fog) are summarized in this paper. Taking the interferometric fiber optic gyroscope as the research object, the basic principle of the fiber optic gyroscope (fog) is introduced, and the signal detection scheme of the interferometric fiber optic gyroscope is analyzed emphatically. Aiming at the problem of modulation gain error caused by Y waveguide integrated optical device with temperature, a digital double closed loop signal detection control scheme is designed. Secondly, this paper analyzes and compares the advantages and disadvantages of square wave offset modulation scheme and two-wave modulation scheme, and finally chooses the two-wave modulation and demodulation scheme which has better effect on cross-interference suppression. Then according to the characteristics of the output interference signal of fog and the design requirements of signal detection system, the selection of main components, the design of hardware circuit and the drawing and welding of PCB board are completed. Then the software system is designed by using Verilog HDL hardware description language, and the software and hardware of the system are tested. Finally, the basic principle of particle swarm optimization (PSO) and chaotic PSO (chaotic PSO) are described. The performance of chaotic PSO is compared with that of ordinary PSO by Matlab simulation. Furthermore, the training method of BP neural network based on chaotic particle swarm optimization is presented, and the BP neural network algorithm based on chaotic particle swarm optimization is used to compensate the off-line temperature of fiber optic gyroscope. The compensation results show that the method can fit the variation rule of gyro zero bias and scale factor with temperature quickly and accurately, and reduce the angular velocity output error caused by zero deviation and scale factor temperature error.
【學(xué)位授予單位】：北京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN253;TP212
【參考文獻】
相關(guān)期刊論文 前10條
1 鄒學(xué)鋒;盧新艷;;基于Allan方差的MEMS陀螺儀性能評價方法[J];微納電子技術(shù);2010年08期
2 許文淵;張春熹;張f^;李琳;;光纖陀螺雙方波調(diào)制方法及其實驗研究[J];光電工程;2009年01期
3 肖翔;胡宗福;;數(shù)字光纖陀螺的第二反饋回路實驗研究[J];光學(xué)與光電技術(shù);2005年06期
4 楊遠洪,張惟敘,馬靜,陳新軍;Low cost, practical, all-digital open-loop fiber-optic gyroscope[J];Chinese Optics Letters;2003年10期
5 王巍;楊清生;王學(xué)鋒;;光纖陀螺的空間應(yīng)用及其關(guān)鍵技術(shù)[J];紅外與激光工程;2006年05期
6 宋凝芳;陳婧;金靖;;光纖陀螺隨機誤差特性的小波方差分析[J];紅外與激光工程;2010年05期
7 劉軍民;高岳林;;基于混沌搜索的微分進化算法[J];計算機工程與應(yīng)用;2008年12期
8 王芳;PCB分層設(shè)計中控制電磁干擾輻射[J];計算機與數(shù)字工程;2002年06期
9 周馳,高海兵,高亮,章萬國;粒子群優(yōu)化算法[J];計算機應(yīng)用研究;2003年12期
10 潘勇;郭曉東;;一種基于遺傳算法改進的粒子群優(yōu)化算法[J];計算機應(yīng)用與軟件;2011年09期
相關(guān)博士學(xué)位論文 前1條
1 陳世同;高精度光纖陀螺建模及信號處理技術(shù)研究[D];哈爾濱工程大學(xué);2009年
本文編號：2260524
本文鏈接：http://sikaile.net/kejilunwen/dianzigongchenglunwen/2260524.html
[Abstract]:Fiber optic gyroscope (fog) is a new all-solid-state inertial measurement sensor based on Sagnac effect. Because of its compact structure, high precision, strong anti-interference ability, short start-up time and long life, fiber optic gyroscope has a very broad development prospect. Based on the previous research experience of fiber optic gyroscope (fog), a digital double closed loop interferometric fiber optic gyroscope (fog) system with FPGA as the core is designed and developed in the digital signal processing and hardware platform of fog. The design and implementation of the software system and the off-line temperature compensation method are studied deeply. The specific research work is as follows: firstly, the development history, research status and technical characteristics of fiber optic gyroscope (fog) are summarized in this paper. Taking the interferometric fiber optic gyroscope as the research object, the basic principle of the fiber optic gyroscope (fog) is introduced, and the signal detection scheme of the interferometric fiber optic gyroscope is analyzed emphatically. Aiming at the problem of modulation gain error caused by Y waveguide integrated optical device with temperature, a digital double closed loop signal detection control scheme is designed. Secondly, this paper analyzes and compares the advantages and disadvantages of square wave offset modulation scheme and two-wave modulation scheme, and finally chooses the two-wave modulation and demodulation scheme which has better effect on cross-interference suppression. Then according to the characteristics of the output interference signal of fog and the design requirements of signal detection system, the selection of main components, the design of hardware circuit and the drawing and welding of PCB board are completed. Then the software system is designed by using Verilog HDL hardware description language, and the software and hardware of the system are tested. Finally, the basic principle of particle swarm optimization (PSO) and chaotic PSO (chaotic PSO) are described. The performance of chaotic PSO is compared with that of ordinary PSO by Matlab simulation. Furthermore, the training method of BP neural network based on chaotic particle swarm optimization is presented, and the BP neural network algorithm based on chaotic particle swarm optimization is used to compensate the off-line temperature of fiber optic gyroscope. The compensation results show that the method can fit the variation rule of gyro zero bias and scale factor with temperature quickly and accurately, and reduce the angular velocity output error caused by zero deviation and scale factor temperature error.
【學(xué)位授予單位】：北京理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN253;TP212
【參考文獻】
相關(guān)期刊論文 前10條
1 鄒學(xué)鋒;盧新艷;;基于Allan方差的MEMS陀螺儀性能評價方法[J];微納電子技術(shù);2010年08期
2 許文淵;張春熹;張f^;李琳;;光纖陀螺雙方波調(diào)制方法及其實驗研究[J];光電工程;2009年01期
3 肖翔;胡宗福;;數(shù)字光纖陀螺的第二反饋回路實驗研究[J];光學(xué)與光電技術(shù);2005年06期
4 楊遠洪,張惟敘,馬靜,陳新軍;Low cost, practical, all-digital open-loop fiber-optic gyroscope[J];Chinese Optics Letters;2003年10期
5 王巍;楊清生;王學(xué)鋒;;光纖陀螺的空間應(yīng)用及其關(guān)鍵技術(shù)[J];紅外與激光工程;2006年05期
6 宋凝芳;陳婧;金靖;;光纖陀螺隨機誤差特性的小波方差分析[J];紅外與激光工程;2010年05期
7 劉軍民;高岳林;;基于混沌搜索的微分進化算法[J];計算機工程與應(yīng)用;2008年12期
8 王芳;PCB分層設(shè)計中控制電磁干擾輻射[J];計算機與數(shù)字工程;2002年06期
9 周馳,高海兵,高亮,章萬國;粒子群優(yōu)化算法[J];計算機應(yīng)用研究;2003年12期
10 潘勇;郭曉東;;一種基于遺傳算法改進的粒子群優(yōu)化算法[J];計算機應(yīng)用與軟件;2011年09期
相關(guān)博士學(xué)位論文 前1條
1 陳世同;高精度光纖陀螺建模及信號處理技術(shù)研究[D];哈爾濱工程大學(xué);2009年
本文編號：2260524
本文鏈接：http://sikaile.net/kejilunwen/dianzigongchenglunwen/2260524.html
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