CAJ | 학술논문

针对脉冲雷达相位测距技术在相位解模糊和测量机理方面存在的局限性，该文提出一种基于分布式雷达的3维测距机制，建立分布式雷达3维测距信号模型。利用天线空间布局引起的序列相位差代替常规由序列脉冲累积引起的相位差，结合微波3维成像处理的基本原理，通过相干积累实现空中观测目标的3维测量和轨迹测量，并利用观测区域的目标空间稀疏分布特性，给出一种基于 CLEAN 的宽带脉冲雷达高精度3维测距方法。仿真验证和分析结果表明，该文设计的分布式雷达3维测距机制和方法不仅较好地避免了高动态远距离测量环境中的相位解模糊问题，而且还能快速获取观测目标的序列3维图像和位置信息，有效避免了传统单站脉冲相位测量体制只能实现1维测距的能力，为雷达测距应用提供一种新的方法与技术支撑。
침대맥충뢰체상위측거기술재상위해모호화측량궤리방면존재적국한성，해문제출일충기우분포식뢰체적3유측거궤제，건립분포식뢰체3유측거신호모형。이용천선공간포국인기적서렬상위차대체상규유서렬맥충루적인기적상위차，결합미파3유성상처리적기본원리，통과상간적루실현공중관측목표적3유측량화궤적측량，병이용관측구역적목표공간희소분포특성，급출일충기우 CLEAN 적관대맥충뢰체고정도3유측거방법。방진험증화분석결과표명，해문설계적분포식뢰체3유측거궤제화방법불부교호지피면료고동태원거리측량배경중적상위해모호문제，이차환능쾌속획취관측목표적서렬3유도상화위치신식，유효피면료전통단참맥충상위측량체제지능실현1유측거적능력，위뢰체측거응용제공일충신적방법여기술지탱。
Considering the limitations of phase unwrapping and measurement mechanism in the pulsed radar phase ranging technology, a three-dimension (3D) ranging mechanism based on distributed radar is proposed, and the observation matrix model of distributed radar 3D ranging is established. By using the sequential phase difference caused by the distributed antenna layout instead of the phase difference caused by pulse incubation, a distributed wide-band radar (3D) measurement based on observation matrix is implemented, and in combination with the target sparse distribution characteristics in the observed area, a wide-band pulse radar carrier measurement by phase based on CLEAN method is suggested. As shown by the simulation and analysis results, the distributed radar phase ranging mechanism and method in this paper not only solve the phase unwrapping problem in high dynamic and long distance measurement environment, but also acquire the three-dimension sequential images and position information of the observed target quickly. This proposed method provides a new technical support for the application of the radar ranging technology.