An air high maneuvering target detection method based on the space-based synthetic aperture radar platform is proposed in this paper.Compared with the inverse synthetic aperture radar system,the proposed method in this paper is more flexible.At the same time,the maneuverability of air moving targets(such as aircraft,missiles,etc.)is fully considered in this paper,which is different from the existing synthetic aperture radar-ground moving target indication method on the assumption of uniform linear motion of air moving targets.In this paper,the adjacent correlation processing is used to correct the envelope migration of the mov-ing target.The keystone transform method is used to perform a unified movement correction on the target,and then the moving tar-get signal is subjected to a variable scale Wigner Ville distribution transform.Finally,the effective coherence of the maneuvering target can be realized by the Fourier transform.Therefore,the proposed method is suitable for the detection of air maneuvering tar-gets under the condition of low signal-to-noise ratio.
关键词
合成孔径雷达/天基平台/空中高机动目标/检测
Key words
synthetic aperture radar(SAR)/space-based platform/air high maneuvering target/detection
维普
万方数据