發(fā)布時(shí)間：2018-03-23 14:47

  本文選題：無合作目標(biāo)測(cè)距　切入點(diǎn)：卡塞格林望遠(yuǎn)鏡　出處：《儀器儀表學(xué)報(bào)》2017年01期

【摘要】：對(duì)于調(diào)頻連續(xù)波無合作目標(biāo)測(cè)距來說,回波接收系統(tǒng)是其光學(xué)系統(tǒng)中重要的組成部分,其接收特性也影響著系統(tǒng)的測(cè)距精度。為對(duì)其進(jìn)行設(shè)計(jì)與分析,利用光學(xué)設(shè)計(jì)軟件對(duì)以卡塞格林望遠(yuǎn)鏡與多模光纖為主體的接收系統(tǒng)進(jìn)行了建模,通過像差與光接收效率的分析與優(yōu)化確定系統(tǒng)選用的卡塞格林望遠(yuǎn)鏡的參數(shù)。建立待測(cè)物后向散射的高斯散射模型,并搭建完整的接收光路進(jìn)行實(shí)驗(yàn),定量分析了不同情況下系統(tǒng)的接收功率,并研究了接收效率、聚焦位置等與待測(cè)物的距離和表面散射之間的規(guī)律。研究結(jié)果表明,對(duì)于相同的加工方式的樣塊,系統(tǒng)接收功率與粗糙度、待測(cè)物距離成負(fù)相關(guān)規(guī)律,系統(tǒng)聚焦距離與粗糙度、待測(cè)物距離呈正相關(guān)規(guī)律。
[Abstract]:The echo receiving system is an important part of the optical system for frequency-modulated continuous wave non-cooperative target ranging, and its receiving characteristics also affect the ranging accuracy of the system. The optical design software is used to model the receiving system with the Cassegrain telescope and multimode optical fiber as the main body. Based on the analysis and optimization of aberration and optical receiving efficiency, the parameters of the Cassegrain telescope selected by the system are determined. The Gao Si scattering model of the backscattering of the object to be tested is established, and the complete receiving light path is set up for experiments. The receiving power of the system under different conditions is quantitatively analyzed, and the law between the receiving efficiency, the focusing position, and the distance and surface scattering of the object to be measured is studied. The received power of the system is negatively correlated with the roughness and the distance of the object to be measured, and the focusing distance of the system is positively correlated with the roughness and the distance of the object to be measured.
【作者單位】： 天津大學(xué)精密測(cè)試技術(shù)及儀器國(guó)家重點(diǎn)實(shí)驗(yàn)室;國(guó)網(wǎng)河北省電力公司;
【基金】：國(guó)家自然科學(xué)基金(51327006,51675380)項(xiàng)目資助
【分類號(hào)】：O439

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