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Journal Nonlinear World №5 for 2016 г.
Article in number:
The impact of Doppler shift and ionospheric distortion on processing broadband signals
Keywords:
broadband signal
signal processing
Doppler shift
ionospheric distortion
impulse dispersive spreading
Authors:
A.K. Stroev - 2-nd Category Engineer, JSC «Academician A.L. Mints Radiotechnical Institute» (Moscow); Post-graduate Student, MIPT (SU). E-mail: astroev@rti-mints.ru
D.V. Yatskin - Specialist, JSC «Academician A.L.Mints Radiotechnical Institute» (Moscow); Post-graduate Student, MIPT (SU)
Abstract:
This paper is devoted to the processing of a broadband radar signal, reflected from the space object problem. The optimal processing of broadband signal reflected from a moving object problem is set up. The dependence on the processing accuracy of dispersion distortions in the atmosphere is researched. It is concluded that the processing excluding the signal envelope distorting can lead to losses of up to 20% of energy. The impact of the Doppler shift on range measurement errors is calculated. The relationship between the radial velocity determination error and electron concentration spatial distribution in ionosphere is shown.
Pages: 3-8
References
- Vinogradov A.G., Luchin A.A., Teokharov A.N. Obrabotka sverkhshirokopolosnykh signalov i formirovanija radiolokacionnykh izobrazhenijj v RLS dalnego obnaruzhenija L-diapazona // Naukoemkie tekhnologii. 2013. T. 14. № 9. S. 32-36.
- Vinogradov A.G., Teokharov A.N. Prjamaja ocenka polnogo ehlektronnogo soderzhanija ionosfery (TEC) po iskazhenijam shirokopolosnogo radiolokacionnogo signala. // Tezisy dokladov Mezhdunar. konf. «Metod funkcijj Ljapunova i ego prilozhenija». Alushta. 2014. 80 s.
- Adzhemov S.S., Vinogradov A.G., Lobov E.M., Teokharov A.N. Prjamaja ocenka polnogo ehlektronnogo soderzhanija ionosfery (TEC) putem specialnojj obrabotki shirokopolosnogo radiolokacionnogo signala. // Sb. trudov nauchno-tekhnich. konf. «Sistemy sinkhronizacii, formirovanija i obrabotki signalov v infokommunikacijakh» («SINKHROINFO-2015»). SPb. 2015. S. 167-169.
- Spravochnik po radiolokacii. V 4-kh tomakh / pod red. M. Skolnika / per. s angl. pod obshh. red. K.N. Trofimova. Nju-JJork. 1970. T. 1. Osnovy radiolokacii / pod red. JA.S. Ickhoki. M.: Sov. radio. 1976. 456 s.
- Dzhenkins G., Vatts D. Spektralnyjj analiz i ego prilozhenija. M.: Mir. 1971
- Kotelnikov V.A., Nikolaev A.M. Osnovy radiotekhniki. CH. 1. M.: Svjazizdat. 1950.
- Zhang B., Zhang L., Zhang L., Karray F. Retinal vessel extraction by matched filter with first-order derivative of Gaussian // Computers in biology and medicine. 2010. V. 40. № 4. R. 438-445.
- Li M., Angulo R.E., White S.D., Jasche J. Matched filter optimization of kSZ measurements with a reconstructed cosmological flow field // Monthly Notices of the Royal Astronomical Society. 2014. V. 443. № 3. R. 2311-2326.
- Teoreticheskie osnovy radiolokacii / pod red. JA.D. SHirmana. M.: Sov. radio. 1970.
- Kravcov JU.A., Fejjzulin Z.I., Vinogradov A.G. Prokhozhdenie radiovoln cherez atmosferu Zemli. M.: Radio i svjaz. 1983. 224 s.