基于二天线的双基地DPCA技术  

Bistatic Radar DPCA Technique Based on Two-antenna

作　　者：陈娟[1] 王盛利[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《电子与信息学报》2007年第7期1687-1690,共4页Journal of Electronics & Information Technology

摘　　要：该文给出了双基地相位中心偏置天线(DPCA)技术的空间几何模型,从接收信号模型入手分析了双基地DPCA技术的杂波抑制原理,并给出了计算机的仿真结果。文章指出,双基地DPCA技术要求天线间隔D,脉冲重复频率PRF以及载机速度Va三者严格满足条件:D=m?Va/PRF(m是一正整数),这跟单基地情况下是一致的;当约束条件不能满足时,杂波的抑制效果将受到一定的影响。This paper gives the geometry of bistatic radar DPCA（Displaced Phase Center Antenna） technique based on two-antenna .The computer simulation results are also given. The bistatic radar DPCA technique requires that the spacing between the phase centers of the two antennas D is made equal to m. Va /PRF , where m is a positive integer, PRF is the pulse repetition frequency and Va is the velocity of the moving platform, just as the monostatic case. When the condition D = m. Va / PRF is not satisfied, clutter can＇t be cancelled completely.

关 键 词：双基地雷达 相位中心偏置天线(DPCA) 杂波抑制 动目标检测 

分 类 号：TN957.2[电子电信—信号与信息处理]