相控陣?yán)走_(dá)目標(biāo)徑向速度數(shù)字精確測(cè)量技術(shù)
Accurate Measurement of Target Radial Velocity for Phased Array Radar
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摘要: 目標(biāo)的速度及其加速度是彈道導(dǎo)彈防御相控陣?yán)走_(dá)鑒別真假彈頭的的重要特征量，同時(shí)對(duì)寬帶雷達(dá)的一維距離像的速度補(bǔ)償提供必要的信息．該文根據(jù)相控陣?yán)走_(dá)多目標(biāo)數(shù)據(jù)率低的特點(diǎn)，提出了細(xì)譜線目標(biāo)速度精確測(cè)量的數(shù)字實(shí)現(xiàn)方法；分析了在目標(biāo)截獲中脈沖相關(guān)法與通道補(bǔ)償法兩種估計(jì)加速度方法的性能，并提出了解速度模糊的新方法，分析和計(jì)算．結(jié)果表明所提出的速度截獲和解模糊方法是可行的．
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關(guān)鍵詞:
- 徑向速度測(cè)量;速度截獲;解速度模糊;相控陣?yán)走_(dá)
Abstract: Velocity and acceleration of target are regard as these of the most important features in real and artificial warhead recognition for ballistic missile defence phased array radar, and also are used as the necessary information for velocity compensation of one-dimensional range profile in wideband radar. Based on the property of low data rate of phased array radar, this paper proposes a digital method to achieve fine-line velocity tracking, and the performances of pulse correlation and channel compensation, two methods being useful for acceleration estimation in target acquisition, are analysed. A new way to solve velocity ambiguity is also proposed. The simulation proves that all the methods are correct and efficient. -
文樹梁.反輻射導(dǎo)彈的檢測(cè)與識(shí)別.碩士論文,航天工業(yè)總公司二十三所,1997年4月.[2]Peleg S, Port B. Linear FM parameter estimation from discrete time observations. IEEE Trans.on AES, 1991, 27(6): 607-616.[3]Peleg S, Port B. Estimation and classification of polynomial-phase signals[J].IEEE Trans on IT.1991, 37(3):422-430[4]Peleg S, Port B. The Cramer-Rao lower bound for signals with constant amplitude and polynomial phase[J].IEEE Trans. on SP.1991, 39(3):749-752[5]孫仲康.雷達(dá)數(shù)據(jù)數(shù)字處理.北京:國防工業(yè)出版社,1983年6月,第3章8節(jié). -
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