摘要
对ATI技术进行改进,提出了一种机载双通道SAR加权ATI地面慢速运动目标检测方法。该方法将DPCA技术和ATI技术的优点结合起来,利用DPCA技术得到加权值对ATI干涉结果进行加权处理,提出了一种新的动目标检测方法。计算机仿真结果表明,该改进方法与ATI方法相比能够有效减少虚假目标的数目,并能够检测到弱目标;与DPCA方法相比,它能够检测到DPCA方法由于对消过大而无法检测到的速度更慢的目标。
This paper presents an improved ATI technique, and puts forward a weighting ATI ground slower moving target detection method based on airborne two channel SAR. The method integrates the advantages of DPCA and ATI technique, using the weight value received from DPCA to weighting process of the result of interferential ATI, and then the paper gives a new moving target detection method. The outcome of computer simulation indicates that, compared with ATI method, the improved method can effectively decrease false target number and detect weak target effectively. Compared with DPCA method, it can detect slower moving targets which DPCA cannot detect because of excessive cancellation.
出处
《雷达科学与技术》
2007年第3期189-193,219,共6页
Radar Science and Technology
