CAJ | 학술논문

现代高分辨雷达通过大带宽获得高距离分辨率，通过大孔径获得高方位分辨率。该文根据单输入多输出(SIMO)线性阵列天线的基本原理，借鉴了频率分集相参处理的思路，用两个阵元实现了多阵元所形成的波束，并结合高分辨1维距离像(HRRP)方法，实现了目标的2维成像。进而为了减小频率分集所需的发射阵元工作带宽，该文结合稀疏天线阵元思想，通过设计阵元分布，用较少的频率分集实现了大孔径。仿真验证了所提方法的有效性。
현대고분변뢰체통과대대관획득고거리분변솔，통과대공경획득고방위분변솔。해문근거단수입다수출(SIMO)선성진렬천선적기본원리，차감료빈솔분집상삼처리적사로，용량개진원실현료다진원소형성적파속，병결합고분변1유거리상(HRRP)방법，실현료목표적2유성상。진이위료감소빈솔분집소수적발사진원공작대관，해문결합희소천선진원사상，통과설계진원분포，용교소적빈솔분집실현료대공경。방진험증료소제방법적유효성。
s: Modern high-resolution radar obtains high resolution in down-range dimension from wideband waveform and high resolution in cross-range dimension from large aperture. In this paper, a beam is formed using Frequency Diversity (FD) coherent processing between two array elements, according to the principle of Single Input Multiple Output (SIMO) linear array antennas beam forming. Then two-dimension image of targets is achieved by using the High Resolution Range Profiles (HRRP). Further to reduce the bandwidth of the FD coherent processing utilizing sparse array, and large aperture is resolved through array design. Finally, simulation verifies the effectiveness of the proposed method.