Bir gönderici ve iki alıcıdan oluşan hareketli hedef SAR görüntülemesi

Temel Bulgular & Veri:For accurate SAR imaging of the moving targets, position and the velocity of the object according to the radar platform must be known accurately.

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Sonuç & Katkı:In this paper, the formulation for rejection of motion irregularities in SAR images is presented and some computer simulations are given.

🔬Tür:Araştırma Makalesi

📍Kapsam:Genişletilmiş Akademik Örneklem

⚙️Değişkenler:Alan Parametreleri

Özet

Synthetic Aperture Radar (SAR) imaging algorithm for the moving targets with some motion irregularities are investigated. For accurate SAR imaging of the moving targets, position and the velocity of the object according to the radar platform must be known accurately. To calculate the instantaneous range and velocity of the object, local radar platform with one transmitter-two receiver (OT-TR) is considered. After the range-bin alignment of the returned signal in each receiver, target's angular position and velocity can be determined by using the phase difference of the receivers. Motion effect free SAR images of moving targets can only be achieved by doing the phase compensation which uses the target's location, direction and speed along the aperture. In this paper, the formulation for rejection of motion irregularities in SAR images is presented and some computer simulations are given.

Abstract

Synthetic Aperture Radar (SAR) imaging algorithm for the moving targets with some motion irregularities are investigated. For accurate SAR imaging of the moving targets, position and the velocity of the object according to the radar platform must be known accurately. To calculate the instantaneous range and velocity of the object, local radar platform with one transmitter-two receiver (OT-TR) is considered. After the range-bin alignment of the returned signal in each receiver, target's angular position and velocity can be determined by using the phase difference of the receivers. Motion effect free SAR images of moving targets can only be achieved by doing the phase compensation which uses the target's location, direction and speed along the aperture. In this paper, the formulation for rejection of motion irregularities in SAR images is presented and some computer simulations are given.

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Bu Makaleye Atıf Yap

KENT, S., PAKER, S. (2022). Bir gönderici ve iki alıcıdan oluşan hareketli hedef SAR görüntülemesi. Istanbul University Journal of Electrical and Electronics Engineering, Cilt: 1 - Sayı: 1, 17–22. https://ajindex.com/articles/543968

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Kaynakça (1)

1 Delisle, G. Y.; Wu, H: Moving target imaging and trajectory computation using ISAR. 2 IEEE Tran. Aerospace and Electronics Sys. Vol. 30, No. 3, pp: 887-899, July 1994. 3 Wohlers, M. R.; Hsiao, S.; Mendelsohn, J.; Garner, G.: Computer simulation of synthetic aperture radar images of threedimensional objects. 4 IEEE Tran. Aerospace and Electronics Sys. Vol. 16, No. 3, pp: 258-270, May 1980. 5 Soumekh, M.: A system model and inversion for synthetic aperture radar imaging. 6 IEEE Tran. Image Processing, Vol. 1, No. 1, pp: 64-76, January 1992. 7 Soumekh, M.: A Array imaging with beam-steered data. IEEE Tran. Image Processing, Vol. 1, No. 3, pp: 379-390, July 1992. 8 Yang, H.; Soumekh, M.: Blind-velocity SAR-ISAR imaging of a moving target in stationary background. IEEE Tran. Image Processing, Vol. 2, No. 1, pp: 80-95, January 1993. 9 Munson, D. C.; O'brien, J. D.; Jenkins, W. K.: A tomographic formulation of spotlight-mode synthetic aperture radar. Proc. IEEE, Vol. 71, pp: 917-925, August 1983. 10 Mersereau, R. M.; Oppenheim, A. V.: Digital reconstruction of multidimensional signals from their projections. Proc. IEEE, Vol. 62, pp: 1319-1338, October 1974.