Estimation of flight altitude in the aperture synthesizing mode for altimeter with continuous probing signal
DOI:
https://doi.org/10.3103/S0735272714110028Keywords:
radar altimeter, synthesized aperture radar, SAR, FMCW, delay-Doppler compensationAbstract
It is proposed the function, defining phase modification of point, ground located reflector at the aperture synthesizing interval of radar altimeter with continuous LFM signal. It is carried our general function shape in wave domain and its expansion by “fast” time. We synthesized the algorithm of the altitude estimation, taking into account the carrier movement during process of beating signal shape. There are represented the results of full-scale experiment.
References
ZHUKOVSKIY, A.P.; ONOPRIYENKO, E.I.; CHIZHOV, V.I. Theoretical Principles of Radar Height-Measuring. Moscow: Sov. Radio, 1979 [in Russian, ed. by A.P. Zhukovskiy].
VINNITSKIY, A.S. The Paper of Radio Location Principles at Continuous Radio Waves Radiation. Moscow: Sov. Radio, 1961 [in Russian], 494 p.
NEWHOUSE, R.C. US Patent No. 2261272, 1941.
RICE, S.O. Mathematical analysis of random noise. Bell System Technical Journal, 1944, v.23, n.3, p.282-332.
AXELSSON, S.R.J. Analysis of the quantizing error of a zero-counting frequency estimator (Corresp.). IEEE Trans. Inf. Theory, Sept. 1976, v.22, n.5, p.596-599, DOI: http://dx.doi.org/10.1109/TIT.1976.1055589.
PACE, P.E. Detecting and Classifying Low Probability of Intercept Radar. Artech House, 2009.
MCALPINE, G.A.; DAMMANN, J.F.; HIGHFILL, J.H.; ISAACS, J.C. Post mixer spectra of periodic FM altimeters with area target returns. IEEE Trans. Aerosp. Electron. Syst., Sept. 1971, v.7, n.5, p.932-941, DOI: http://dx.doi.org/10.1109/TAES.1971.310334.
AXELSSON, S.R.J. Area target response of triangularly frequency-modulated continuous-wave radars. IEEE Trans. Aerosp. Electron. Syst., Mar. 1978, v.14, n.2, p.266-277, DOI: http://dx.doi.org/10.1109/TAES.1978.308647.
NESTEROV, M.Y. Flight altitude estimation via calculation of spectral moments of the beat signal. Nelineinyi Mir, 2012, n.12, p.917-923, http://www.radiotec.ru/catalog.php?cat=jr11&art=12038.
GRIFFITHS, H.D.; PURSEYYED, B. A radar altimeter with synthetic aperture processing. Proc. of IEEE 19th European Microwave Conf., 4–7 Sept. 1989, London, UK. IEEE, 1989, p.281-286, DOI: http://dx.doi.org/10.1109/EUMA.1989.333978.
RANEY, R.K. The delay/Doppler radar altimeter. IEEE Trans. Geosci. Remote Sensing, Sept. 1998, v.36, n.5, p.1578-1588, DOI: http://dx.doi.org/10.1109/36.718861.
NESTEROV, M.Y. Specificities of altitude measuring in a mode of SAR in case of relief presence. Proc. IV Russian Sci.-Tech. Conf. on Radar Height-Measuring, 2013, Russia. Yekaterinburg: Fort Dialog-Iset, 2013, p.397-401.
NESTEROV, M.Y. Calculation of two-dimension spectral power density of beating signal of FMRA. Proc. of IV Russian Sci.-Tech. Conf. on Radar Height-Measuring, 2013, Russia. Yekaterinburg: Fort Dialog-Iset, 2013, p.391-395.
GUCCIIONE, P. Beam sharpening of delay/Doppler altimeter data through Chirp Zeta Transform. IEEE Trans. Geosci. Remote Sensing, Sept. 2008, v.46, n.9, p.2517-2526, DOI: http://dx.doi.org/10.1109/TGRS.2008.918863.