Results of Radio Images Focusing of Three-Dimensional Objects by using Multi-Frequency Multistatical Radiohologram and the Method of Rear Projections

The study presents the results of constructing radio images by method of multistatical holography based on the electrodynamic models of three-dimensional objects. The initial data for simulation were the values of the complex amplitude of the field, which were recorded via the elements of the receiving antenna array. We examined the method of rear projections and applied it to electrodynamics models. It allows us to restore the shape and size of the object in cross section and to define its boundaries longitudinally. The full spatial image of the object can be recovered. The increase in the number of frequencies leads to the increase in the quality of the restored image both in the longitudinal and in the cross sections.

References

[1] Chapurskiy V.V. Receiving the radio-holographic images of objects on the basis of disperse MIMO-type antenna arrays with the single-frequency and multi-frequency radiations. Vestnik MGTU im. N.E. Baumana. Ser. Priborostroenie [Herald of the Bauman Moscow State Technical University. Ser. Instrument Engineering], 2011, no. 4, pp. 72-91 (in Russ.).

[2] Krayniy V.I., Semenov A.N., Chapurskiy V.V. Multi-static multi-frequency image reconstruction based on non-uniform FFT. Radiooptika [Radiooptics], 2015, no. 11, pp. 292-300 (in Russ.). DOI: 10.7463/1115.0826094

[3] Krayniy V.I., Semenov A.N., Chapurskiy V.V. Single-frequency multi-static radiogram focusing using 2D non-equidistant FFT. Sb. dokl. VIII Vseross. konf. "Radiolokatsiya i radiosvyaz’" [Proc. VIII Russ. Conf. "Radiolocation and radio communication"]. Moscow, 2014, pp. 77-81 (in Russ.).

[4] Nesterov S.M., Skorodumov I.A. Osobennosti sintezirovaniya trekhmernykh radiolo-katsionnykh izobrazheniy ob’ektov [Special aspects of 3D object radar image synthesizing]. Moscow, IRE RAN Publ. 2010, pp. 218-222 (in Russ.).

[5] Razevig V.V., Bugaev A.S., Chapurskiy V.V. The comparative analysis of classical and multistatic microwave holograms focusing. Radiotekhnika [Radioengineering], 2013, no. 8, pp. 8-17 (in Russ.).

[6] Semenov A.N., Akhiyarov V.V., Chapurskiy V.V. Using electrodynamic modeling in multistatic radio holography. 25-ya Mezhdunar. konf. "SVCh tekhnika i telekommunikatsionnye tekhnologii". Materialy konf. B 2-kh t. T. 2 [25th Int. conf. "SHF technique and telecommunication technologies". In 2 vol. Vol. 2]. Sevastopol’, 2015, pp. 1152-1153 (in Russ.).

[7] Chapurskiy V.V. Multistatic radio golography. Trudy 4-y Mezhdunar. konf. "Akustoopticheskie i radiolokatsionnye metody izmereniy i obrabotki informatsii" [Proc. 4th int. conf. "Acoustooptical and radar methods of measurement and data processing"]. Suzdal’, 2011, pp. 99-102 (in Russ.).

[8] Chapurskiy V.V. Object radio image synthesizing by means of linear antenna array of the MIMO series. Vestnik MGTU im. N.E. Baumana. Ser. Priborostroenie. Spets. vyp. "Radioopticheskie tekhnologii vpriborostroenii" [Herald of the Bauman Moscow State Technical University. Ser. Instrument Engineering. Spec. iss. "Radio optical technologies in instrument engineering"], 2012, no. 7, pp. 115-123 (in Russ.).

[9] Kuriksha A.A. Back projection algorithm in source spatial distribution reconstruction problems. Radiotekhnika i elektronika, 2002, no. 12, pp. 1484-1489 (in Russ.).

[10] Sheen D.M., McMakin D.L., Hall T.E. Three-dimensional millimeter-wave imaging for concealed weapon detection. IEEE Transactions on Microwave Theory and Techniques, 2001, vol. 49, no. 9, pp. 1581-1592. DOI: 10.1109/22.942570

[11] Yakubov V.P., Sklarczyk K.G., Pinchuk R.V., Sukhanov D.Ya., Bulavinov A.N., Bevetskii A.D. Radio-wave tomography of hidden objects for safety systems. Russ. Phys. J, 2008, vol. 51, no. 10, pp. 1064-1082. DOI: 10.1007/s11182-009-9148-0

[12] Andreev V.G., Karabutov A.A., Solomatin S.V., Savateeva E.V., Aleinikov V., Zhulina Yu.V., Fleming R.D., Oraevsky O.A. Optoacoustic tomography of breast cancer with arc-array transducer. BiOS 2000. The International Symposium on Biomedical Optics. 2000, pp. 36-47. DOI: 10.1117/12.386339

[13] Liu Q.H., Nguyen N. An accurate algorithm for nonuniform fast Fourier transforms (NUFFT). IEEE Microwave and Guided Wave Letters, 1998, vol. 8, no. 1, pp. 18-20. DOI: 10.1109/75.650975

[14] Song J., Liu Q.H., Kim K., Scott W.R. High-resolution 3-D radar imaging through nonuniform fast Fourier transform (NUFFT). Commun. Comput. Phys., 2006, vol. 1, no. 1, pp. 176-191.