本文關(guān)鍵詞： 光纖傳感網(wǎng)絡(luò) 干涉解調(diào) 現(xiàn)場(chǎng)可編程門陣列 高吞吐率 流水線技術(shù)　出處：《南京理工大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：石油作為全球經(jīng)濟(jì)和社會(huì)發(fā)展中具有重要戰(zhàn)略地位的能源資源,對(duì)油氣層儲(chǔ)層信息的精確勘探尤為重要。在被廣泛使用的地震波法探測(cè)油氣層系統(tǒng)中,光纖傳感器作為檢波器進(jìn)行大規(guī)模復(fù)用的組網(wǎng)架構(gòu)以及系統(tǒng)對(duì)大量數(shù)據(jù)高速、實(shí)時(shí)處理的需求,已成為亟待解決的關(guān)鍵問(wèn)題。本課題的工作主要包括光纖傳感器組網(wǎng)架構(gòu)設(shè)計(jì)及高速、實(shí)時(shí)的數(shù)據(jù)采集、處理、傳輸實(shí)現(xiàn)兩部分。首先針對(duì)應(yīng)用于地震波檢測(cè)的高分辨率光纖油氣層探測(cè)系統(tǒng),設(shè)計(jì)了一種高性能、低成本、大數(shù)據(jù)量的基于相位調(diào)制型邁克爾遜光纖傳感器的組網(wǎng)架構(gòu)。其次,重點(diǎn)實(shí)現(xiàn)了適用于光纖傳感器組網(wǎng)應(yīng)用中的實(shí)時(shí)干涉解調(diào)系統(tǒng)。根據(jù)傳統(tǒng)的單片機(jī)或PC等運(yùn)算平臺(tái)難以適應(yīng)傳感器組網(wǎng)帶來(lái)的大規(guī)模數(shù)據(jù)高速、實(shí)時(shí)處理的現(xiàn)狀,選取Altera公司的EP3SE110F115213 FPGA作為系統(tǒng)實(shí)時(shí)控制與處理的核心。實(shí)時(shí)干涉解調(diào)系統(tǒng)主要包括:在時(shí)間同步部分,根據(jù)地震波法探測(cè)油氣層對(duì)時(shí)間同步的精確要求,選取Hemisphere公司的GPS實(shí)現(xiàn)高精度授時(shí),其授時(shí)精度為20ns,通過(guò)RS232串口實(shí)現(xiàn)了 GPS與FPGA間的串口通信;在數(shù)據(jù)采集部分,選用ADI公司的ADC芯片實(shí)現(xiàn)多路數(shù)據(jù)的高速采集,并利用FPGA基于SPI串口實(shí)現(xiàn)對(duì)ADC芯片的指令傳輸進(jìn)行芯片配置,進(jìn)而在此基礎(chǔ)上設(shè)計(jì)了一種采樣時(shí)間窗口精確定位方法,能夠準(zhǔn)確實(shí)時(shí)地提取每個(gè)傳感器的光強(qiáng)數(shù)據(jù);在數(shù)據(jù)處理部分,依據(jù)本課題所述系統(tǒng)信號(hào)頻率緩慢變化的特點(diǎn)(頻率范圍為1Hz～200Hz),基于本課題提出的二元矩形脈沖相位調(diào)制解調(diào)法和區(qū)域生長(zhǎng)算法思想設(shè)計(jì)并實(shí)現(xiàn)了一種適于FPGA的高吞吐率相位計(jì)算的硬件架構(gòu),它主要包含包裹相位計(jì)算和相位解包兩個(gè)子模塊。該相位計(jì)算模塊采用浮點(diǎn)運(yùn)算單元和流水線運(yùn)行,重點(diǎn)實(shí)現(xiàn)了基于FIFO的數(shù)據(jù)流同步。FPGA的系統(tǒng)工作頻率為200MHz。實(shí)現(xiàn)了單個(gè)時(shí)鐘周期處理一個(gè)相位信息的吞吐能力,每秒處理相位數(shù)據(jù)量可達(dá)2×108。在數(shù)據(jù)通信部分,通過(guò)組幀處理將大量傳感器數(shù)據(jù)根據(jù)幀頭信息進(jìn)行歸類、整合后,由USB2.0芯片實(shí)現(xiàn)FPGA與上位機(jī)之間的通信。該解調(diào)系統(tǒng)具有精確的采樣窗口定位及信號(hào)提取能力,實(shí)現(xiàn)了適用于FPGA流水線架構(gòu)的高吞吐率的干涉相位計(jì)算及解包算法,同時(shí)能實(shí)現(xiàn)快速的數(shù)據(jù)處理及傳輸。本課題在FPGA平臺(tái)上進(jìn)行了大量的仿真和實(shí)時(shí)調(diào)試。實(shí)驗(yàn)證明,該系統(tǒng)工作性能良好,為高分辨率光纖油氣層探測(cè)系統(tǒng)提供了一種新的實(shí)時(shí)干涉解調(diào)的實(shí)現(xiàn)方案。
[Abstract]:Oil as the world's economic and social development has an important strategic position in energy resources, oil and gas exploration of accurate reservoir information is particularly important. In the detection of seismic wave method is widely used in oil and gas system, network architecture of optical fiber sensor as the detector for reuse and system of a large number of data of high speed, real-time processing. That has become a key problem to be solved. The work of this paper mainly includes the optical fiber sensor network architecture design and high speed data acquisition, real-time processing and transmission is realized in two parts. Firstly, high resolution fiber oil and gas detection system based on seismic wave detection, the design of a high performance, low cost, large amount of data the network architecture of phase modulation type optical fiber sensor based on Michelson. Secondly, focused on the realization of the real time interference for optical fiber sensor network application solutions Transfer system. According to the traditional SCM or PC operation platform is difficult to adapt to the large-scale data high speed sensor network brings the status of real-time processing, select Altera's EP3SE110F115213 FPGA as the core of real-time system control and data processing. The real-time demodulation system mainly includes: the synchronization part in time, according to the precise requirements of seismic wave detection method of oil and gas for time synchronization, select Hemisphere's GPS to realize the high precision timing, the timing accuracy of 20ns, the serial communication between FPGA and GPS through RS232 serial port; in the part of data acquisition to achieve high-speed multi-channel data acquisition using ADC chip of ADI company, and using FPGA SPI serial port command transmission on ADC chip chip based configuration, and then on the basis of the design of a sampling time window method for accurate positioning, accurate real-time extraction of each sensor The light intensity data; the data processing part changes according to the subject characteristics of the system signal frequency slow (frequency range is from 1Hz to 200Hz), this paper puts forward the two element rectangular pulse phase modulation demodulation method and region growing algorithm to design and implement a FPGA suitable for high throughput computing hardware phase based on the architecture, it mainly includes the wrapped phase calculation and phase unwrapping of two sub modules. The phase calculation module using floating-point arithmetic unit and pipeline operation, mainly focus on the implementation of the system of the working frequency of FIFO data stream synchronization based on.FPGA to achieve throughput of a single clock cycle with a phase information for 200MHz., second phase data amount 2 * 108. in the data communication part, by frame processing a large number of sensor data are classified, according to the header information integration, by USB2.0 chip FPGA and host The communication between machines. The demodulation system has accurate sampling window positioning and signal extraction ability, to achieve high throughput of the interferometric phase unwrapping algorithm and calculation for FPGA pipeline architecture, and can realize fast data processing and transmission. This paper makes a great deal of simulation and real-time debugging experiment on the FPGA platform. Proved that the system has a good performance, provides a scheme of real-time Interferometric Demodulation for new high resolution fiber oil and gas detection system.

【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：P631.4;P618.13

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 戎華北;光纖傳感器的現(xiàn)狀和應(yīng)用[J];廈門科技;2005年04期

2 閆若穎,王月香,李淑悅;光纖傳感器的應(yīng)用[J];科技廣場(chǎng);2005年10期

3 李仲奎;王愛民;;三維地質(zhì)力學(xué)模型試驗(yàn)中光纖傳感器的應(yīng)用研究[J];實(shí)驗(yàn)技術(shù)與管理;2006年12期

4 張朋;王寧;陳艷;王海燕;;光纖傳感器的發(fā)展與應(yīng)用[J];現(xiàn)代物理知識(shí);2009年02期

5 唐宇;劉傳菊;;光纖傳感器及其研究現(xiàn)狀[J];科技資訊;2009年07期

6 蘇賜民;;光纖傳感器[J];科技資訊;2010年17期

7 盧一鑫;楊璐娜;;光纖傳感器的應(yīng)用現(xiàn)狀及未來(lái)發(fā)展趨勢(shì)[J];科技信息;2011年03期

8 侯正田;侯承志;徐武松;;光纖傳感器及其醫(yī)學(xué)應(yīng)用[J];甘肅科技;2012年05期

9 尹林;楊熠;;光纖傳感器及其應(yīng)用研究[J];電子制作;2013年08期

10 廖延彪,范崇澄;光纖傳感器[J];中國(guó)激光;1984年09期

相關(guān)會(huì)議論文 前10條

1 李川;;《光纖傳感器技術(shù)》課程建設(shè)[A];2006-2010年教育部高等學(xué)校光電信息科學(xué)與工程專業(yè)教學(xué)指導(dǎo)分委員會(huì)及協(xié)作委員會(huì)2010年全體會(huì)議論文集[C];2010年

2 ;一種用于薄結(jié)構(gòu)振動(dòng)測(cè)量的新型光纖傳感器[A];廣東省材料研究學(xué)會(huì)部分單位會(huì)員成果匯編[C];2005年

3 田領(lǐng)紅;;一種可用于軍事領(lǐng)域上的壓力光纖傳感器[A];2000全國(guó)力學(xué)量傳感器及測(cè)試、計(jì)量學(xué)術(shù)交流會(huì)論文集[C];2000年

4 盧哲安;符晶華;張全林;;光纖傳感器用于土木工程檢測(cè)的研究——關(guān)鍵技術(shù)及實(shí)現(xiàn)途徑[A];湖北省土木建筑學(xué)會(huì)學(xué)術(shù)論文集（2000-2001年卷）[C];2002年

5 冷勁松;;光纖傳感器及其在復(fù)合材料結(jié)構(gòu)健康監(jiān)測(cè)中的應(yīng)用[A];科技、工程與經(jīng)濟(jì)社會(huì)協(xié)調(diào)發(fā)展——中國(guó)科協(xié)第五屆青年學(xué)術(shù)年會(huì)論文集[C];2004年

6 何s，

本文編號(hào)：1471920