A method for estimation of many-dimensional images with super-Rayleigh resolution in processing of echo signals at coherent sounding
DOI:
https://doi.org/10.3103/S0735272706090044Abstract
A new method called NOSE (nonorthogonal signals estimation) is suggested for assessment of many-dimensional (time-space-Doppler type) amplitude-phase images, particularly, multiple lumped targets. When using this method, the maximum possible resolving capacity of the radar system is limited only by the signal-to-noise ratio. An analytical expression of the correlation matrix of noise in image is deduced. The soundness of the method at typical signal-to-noise ratios is confirmed by the mathematical simulation method.References
MARPLE Jr., S.L. Digital Spectral Analysis with Applications. Prentice-Hall, 1987.
SYCHOV, M.I. "Ocenivanie uglovykh koordinat blizko raspolozhennykh istochnikov izlucheniia po prostranstvenno-vremennoi vyborke," Izv. VUZ. Radioelektronika, v.35, n.5, p.33-39, 1992.
SYCHOV, M.I. "Ocenivanie chisla blizko raspolozhennykh istochnikov izlucheniia po prostranstvenno-vremennoi vyborke," Radiotekhnika i Elektronika, n.10, p.1807-1815, 1992.
KURIKSHA, A.A. "Ocenka chisla i parametrov komponent signala pri nalichii shuma," Radiotekhnika i Elektronika, n.9, p.1740-1744, 1984.
SHINAKOV, Y.S.; SPERANSKII, V.S. "Sovmestnoe obnaruzhenie, razreshenie i izmerenie parametrov signalov na fone pomehi na vyhode antennoi reshetki. Sintez algoritmov," Radiotekhnika i Elektronika, n.11, p.2179-2184, 1982.
SHINAKOV, Y.S. "Sovmestnoe obnaruzhenie i razreshenie neizvestnogo chisla signalov," Radiotekhnika i Elektronika, n.6, p.1131-1138, 1985.
KONOVALOV, L.N. "Determination of the number of signals by the method of checking complex hypothesis using the likelihood-ratio criterion," Radioelectron. Commun. Syst., v.21, n.7, p.18-25, 1988.
KONOVALOV, L.N.; MERKULENKO, I.D. "Determining the parameters of signals from one sampling of observations from the output of an equidistant antenna arrays," Radioelectron. Commun. Syst., v.20, n.3, p.51-58, 1987.
SHIRMAN, Y.D.; MANZHOS, V.N. Theory and Techniques of Radar Information Processing in the Presence of Interference [in Russian]. Moscow: Radio i Svyaz’, 1981.
CHIZHOV, A.A.; AVLASENOK, A.V. "Analytical description of likelihood functional in echo-signal formation of a group radar target," Izv. VUZ. Radioelektronika, v.45, n.6, p.27-34, 2002.