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摘要：同步移相干涉測(cè)量技術(shù)是一種重要的移相干涉測(cè)量的抗震手段，可以通過(guò)一個(gè)CCD瞬態(tài)采集多幅移相干涉圖來(lái)實(shí)現(xiàn)抗震目的。采用一個(gè)CCD同時(shí)拍攝多幅干涉圖，在進(jìn)行移相算法之前需要對(duì)干涉圖的空間相對(duì)位置進(jìn)行標(biāo)定，即找出干涉圖的相對(duì)位置，然后再進(jìn)行干涉圖的采集。而CCD的移動(dòng)或者旋轉(zhuǎn)等因素，會(huì)導(dǎo)致干涉圖的相對(duì)位置與標(biāo)定的相對(duì)位置之間發(fā)生了相對(duì)移動(dòng)，形成空間位置匹配誤差。本文將針對(duì)空間移相干涉圖的相對(duì)移動(dòng)所導(dǎo)致的空間位置匹配問(wèn)題進(jìn)行分析，研究干涉圖的旋轉(zhuǎn)誤差。


關(guān)鍵詞：空間移相，干涉，空間一致性，旋轉(zhuǎn)誤差



Abstract: Synchronous phase-shifting interferometry technique is one important anti-seismic means of phase-shifting interferometry,which can attain the goal of seismic through one CCD collect interferograms instantaneously.The system uses one CCD to take interferograms at the same time.It needs to calibrate relative position of interferograms in space before using phase-shifting algorithm.That is to say, relative position of interferograms should be ascertained first,then interferograms can be gathered.However,the CCD’s movement or rotation may lead to the relative movement between relative position of interferograms and relative position of calibration,which may form the space position matching-error.This paper will research the space position matching-error and rotation-error of interferograms.


Key words: spatial phase-shifting, interference ,spatial consistency,rotation-error





目 錄

1 前言 3
2 單CCD同步移相干涉系統(tǒng)介紹 3
2.1 系統(tǒng)結(jié)構(gòu)框圖 3
2.2系統(tǒng)光路圖及工作原理介紹 4
2.3 理論分析 6
3 空間移相干涉圖的旋轉(zhuǎn)分析 8
3.1空間一致性分割 8
3.2干涉圖的旋轉(zhuǎn)分析 9
3.3空間移相干涉圖的處理流程 10
結(jié) 論 12
參考文獻(xiàn) 13
致 謝 14