小斜視角單輸入多輸出稀疏線(xiàn)性陣列相參頻率分集成像
發(fā)布時(shí)間:2019-01-29 02:55
【摘要】:現(xiàn)代高分辨雷達(dá)通過(guò)大帶寬獲得高距離分辨率,通過(guò)大孔徑獲得高方位分辨率。該文根據(jù)單輸入多輸出(SIMO)線(xiàn)性陣列天線(xiàn)的基本原理,借鑒了頻率分集相參處理的思路,用兩個(gè)陣元實(shí)現(xiàn)了多陣元所形成的波束,并結(jié)合高分辨1維距離像(HRRP)方法,實(shí)現(xiàn)了目標(biāo)的2維成像。進(jìn)而為了減小頻率分集所需的發(fā)射陣元工作帶寬,該文結(jié)合稀疏天線(xiàn)陣元思想,通過(guò)設(shè)計(jì)陣元分布,用較少的頻率分集實(shí)現(xiàn)了大孔徑。仿真驗(yàn)證了所提方法的有效性。
[Abstract]:Modern high resolution radar obtains high range resolution through large bandwidth and high azimuth resolution through large aperture. According to the basic principle of single input and multiple output (SIMO) linear array antenna and the idea of frequency diversity coherent processing, this paper uses two array elements to realize the beam formed by multi-array elements, and combines the high-resolution 1-D range profile (HRRP) method. The two-dimensional imaging of the target is realized. Furthermore, in order to reduce the bandwidth of emission array elements required for frequency diversity, this paper combines the idea of sparse antenna array element and designs the distribution of array elements to achieve large aperture with less frequency diversity. Simulation results show the effectiveness of the proposed method.
【作者單位】: 空軍工程大學(xué)信息與導(dǎo)航學(xué)院;68205部隊(duì)72分隊(duì);武警工程大學(xué)信息工程系;
【基金】:國(guó)家自然科學(xué)基金(61172169,61102109) 中國(guó)博士后基金(2012M521897) 陜西省自然科學(xué)基金(2012JQ8036)資助課題
【分類(lèi)號(hào)】:TN957.52
[Abstract]:Modern high resolution radar obtains high range resolution through large bandwidth and high azimuth resolution through large aperture. According to the basic principle of single input and multiple output (SIMO) linear array antenna and the idea of frequency diversity coherent processing, this paper uses two array elements to realize the beam formed by multi-array elements, and combines the high-resolution 1-D range profile (HRRP) method. The two-dimensional imaging of the target is realized. Furthermore, in order to reduce the bandwidth of emission array elements required for frequency diversity, this paper combines the idea of sparse antenna array element and designs the distribution of array elements to achieve large aperture with less frequency diversity. Simulation results show the effectiveness of the proposed method.
【作者單位】: 空軍工程大學(xué)信息與導(dǎo)航學(xué)院;68205部隊(duì)72分隊(duì);武警工程大學(xué)信息工程系;
【基金】:國(guó)家自然科學(xué)基金(61172169,61102109) 中國(guó)博士后基金(2012M521897) 陜西省自然科學(xué)基金(2012JQ8036)資助課題
【分類(lèi)號(hào)】:TN957.52
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