Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2023. №7
ContentsFull text in Russian (pdf)
DOI: https://doi.org/10.30898/1684-1719.2023.7.5
CHOICE OF THE METHOD AND HYPOTHESIS OF PROBING SIGNAL WOBBLING PARAMETERS
IN THE METODOLOGY FOR SOLVING THE PROBLEM OF ESTIMATING
THE AMBIGUOUS DOPPLER FREQUENCY IN COHERENT-PULSE SURVEY RADARS
V.N. Zavizhenets 1, S.A. Gorshkov 2, A.S. Solonar 1
1 Educational Establishment «Military Academy of the Republic of Belarus»
220057, Republic of Belarus, Minsk, Nezavisimosti ave., 2202 Limited Liability Company «MilitSoft Solutions»
220090, Republic of Belarus, Minsk, Logoysky trakt 37-8a
The paper was received May 25, 2023.
Abstract. Hypotheses of the parameters of the wobbling law of the probing signal are analyzed, including the number of subbursts, the number of pulses in a subburst, and the following period. The repetition periods are recalculated to clock intervals with the preservation of mutual relations. A verification of the burst radiation condition during the observation time is given. A hypothesis with optimal parameters of the wobbling law is chosen. The correlation time of the reflected signal fluctuation is calculated and the method for estimating the radial velocity with the optimal coherent accumulation time is determined. Signal parameters are proposed for the implementation of the modified nonius method when the number of pulses is required to be constant or in the case of technical limitations for other methods of disambiguation. The clarity of the methodology is illustrated by the example of forming hypotheses, calculating the repetition periods and choosing a variant of the probing signal for applying one or another method of estimating the radial velocity.
Key words: repetition period wobbling, ambiguous Doppler frequency, radial velocity measurement, probing signal parameters choice, correlation time, coherent accumulation, clock interval.
Corresponding author: Zavizhenets Vitali Nikolaevitch, za_vi@mail.ru
References
1. Zavizhenets V.N., Gorshkov S.A. Comparative Analysis of the Developed Methods for Measuring Radial Velocity for Coherent Pulse Surveillance Radars. Nauka i voyennaya bezopasnost' [Science and military security]. 2022. №4. P.40-44. (In Russian)
2. Zavizhenets V.N., Gorshkov S.A., Solonar A.S. Formation of hypotheses of probing signal wobbling parameters in the methodology for solving the problem of measuring unambiguous Doppler frequency in coherent-pulse surveillance radar. Zhurnal radioelektroniki [Journal of Radio Electronics] [online]. 2023. №5. https://doi.org/10.30898/1684-1719.2023.5.10 (In Russian)
3. Zavizhenets V.N., Gorshkov S.A. Method for Unambiguous Doppler Frequency Estimation in Survey Radars Based on Coherent Accumulation of Reflected Signals with Different Repetition Periods. Vestnik Voyennoy akademii Respubliki Belarus' [Bulletin of the Military Academy of the Republic of Belarus]. 2019. №1. P.29-40. (In Russian)
4. Gorshkov S.A., Gelili B.M. Analysis of the characteristics of digital adaptive decision making devices. Prikladnaya radioehlektronika [Applied radio electronics]. 2004. V.5. №3 P.405-407. (In Russian)
5. Kostromitskii S.M., Davydenko I.N. Relationship between the time and level of cross-correlation of complex target signals with the spacing of analyzers. Nauchno-prakticheskii zhurnal. Bazis. [Scientific and practical journal. Basis.]. 2019. №1. P.9-13.
6. Gorshkov S.A., Latushkin V.V., Sedyshev S.YU. Osnovy radiolokatsii. Konspekt lektsii. CH.1. [Fundamentals of radar. Lecture notes Part.1]. Minsk, Military Academy of the Republic of Belarus. 2003. 126 p. (In Russian)
7. Kuz'min S.Z. Osnovy teorii tsifrovoi obrabotki radiolokatsionnoi informatsii. [Fundamentals of the theory of digital processing of radar information]. Moscow, Sovetskoye Radio Publ. 1974. 432 p. (In Russian)
8. Radar handbook Editor in Chief Skolnik M.I. McGRAW mill book company 1970.
9. Gorshkov S.A., Zavizhenets V.N. Unambiguous Doppler Frequency Estimation of Received Signal by Spectrum Multiplication in Pulse-Doppler Surveillance Radars. Vestnik Voyennoy akademii Respubliki Belarus' [Bulletin of the Military Academy of the Republic of Belarus]. 2006. №3. P.48-52. (In Russian)
10. Zavizhenets V.N. Modified vernier method for automatic Doppler frequency recovery under ambiguity. Vestnik Voyennoy akademii Respubliki Belarus' [Bulletin of the Military Academy of the Republic of Belarus]. 2006. №2. P.57-61. (In Russian)
For citation:
Zavizhenets V.N., Gorshkov S.A., Solonar A.S. Choice of the method and hypothesis of probing signal wobbling parameters in the metodology for solving the problem of estimating the ambiguous Doppler frequency in coherent-pulse survey radars. Zhurnal radioelektroniki [Journal of Radio Electronics] [online]. 2023. №7. https://doi.org/10.30898/1684-1719.2023.7.5 (In Russian)