Kostyantyn A. Lukin

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Within the frames of Alfvén sweep maser theory the description of morphological features of geomagnetic pulsations in the ionosphere with frequencies (0.1-10 Hz) in the vicinity of Schumann resonance (7.83 Hz) is obtained. It is shown that the related regular spectral shapes of geomagnetic pulsations in the ionosphere determined by ”viscosity” and(More)
The work is devoted to elaborating a new method for SAR image generating using noise/random signals and nonmoving & non-switching antenna array suggested in Lukin (2006). The main idea of that antenna array consists in the extraction from the total signal of one channel receiver the signals received by a single element of the array. This signals(More)
Conventional SAR generates 2D image using combination of range compression and 1D aperture synthesis. The range resolution of such approach is determined by the signal spectrum width, while cross-range resolution is defined by the synthetic aperture length. 2D aperture synthesis implies movement of antenna along 2D aperture and cross-range compression(More)
Conventional SAR generates 2D image using combination of range compression and 1D aperture synthesis. Range resolution of this approach is determined by the signal spectrum width, while cross-range resolution is defined by the synthetic aperture length. 2D aperture synthesis implies movement of antenna along 2D aperture and cross-range compression technique(More)
Current paper is devoted to coherent radiometric imaging systems. The investigated systems may be considered as a version of bistatic noise waveform radar with synthetic aperture having external reference. Reference signal in this imaging system is received from the investigated object using auxiliary receiver. Absence of need in radiation of sounding(More)
Noise waveform SAR generates 2D SAR images of a scene. Advanced radio-metric SAR imaging provides information on the objects thermal radiation, angular coordinates and even range. The brightness temperatures of rough and smooth surfaces are different. An active, noise waveform, operating mode of bistatic radiometer, based on antennae with beam synthesis, is(More)
MIMO approach to implementation of radar tomography is described and preliminary results of its experimental validation using Ka-band noise waveform ground based SAR are presented. MIMO concept with time-division to of Tx/Rx channels is applied to emulate 2D aperture synthesis combined with range resolution due to wideband random signals. Two linear(More)
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