Maciej Smolarczyk

DPCA Detection of Moving Targets in Airborne Passive Radar

A new approach to the passive coherent location (PCL) signal processing technique dedicated for use on mobile radar platforms is presented. The main goal of the research conducted was to present different aspects of an efficient space-time ground moving target indication (GMTI) algorithm for PCL radar mounted to airborne platforms. The algorithm described, based on displacement phase center antenna (DPCA), has been successfully tested with simulated and real-life data collected with an airborne passive radar demonstrator (PaRaDe).

Real-Time Unfocused SAR Processor For Airborne Maritime Patrol Radar

The modern airborne patrol radar benefits from having a real-time SAR capability. The high-resolution coast-line imaging, and vessel identification in maritime patrol radars can be done effectively in SAR mode. Telecommunication Research Institute in cooperation with Warsaw University of Technology started in 2003 project of an onboard SAR imaging processor for maritime airborne patrol radar. Such a processor has been introduced into a new version of Polish airborne radar and has been successfully tested by Polish Navy and Polish Coast Guard.

Multilook technique for dominant scatterer removal in SAR images

In the paper a multilook method of dominant scatterer removal for SAR image enhancement is presented. Sidelobes produced by very strong scatterers in range and cross-range dimension form a characteristic cross-shaped pattern centred on dominant scatterer. The presence of these sidelobes decreases the overall image quality and can mask weak scatterers close to the strong one. The proposed method is an expanded version of algorithm based on adaptive removal of modelled strong scatterer echoes from raw radar data. The use of multilook technique gives much better results of dasiacleaningpsila the signal. Like in the raw radar signal is reprocessed after removal, and strong scatterers are then added to the final image. The multilook cleaning method has been successfully tested using raw radar data.

Multilook Colour Mapping in SAR Images

This paper presents colour mapping technique for strip-mode SAR images as a extension of classic SAR imaging process. The main goal of this technique is to get more information from the SAR raw radar data about the observing objects and recognized them. The colour mapping technique is based on the well known multilook processing. The idea of colour mapping is to take advantages of Doppler history in the azimuth direction from N-independent looks. The whole propose algorithm consists of three general stages: motion compensation, multilook processing and the colour mapping technique.

Analysis of SAR images quality degradation factors

Quality of Synthetic Aperture Radar (SAR) images is very sensitive for both pulse signal spectrum purity and stability of the radar platform flight path. In this paper detailed influence of this factors on SAR images quality is analyzed. Analysis is based mainly on computer simulations. This kind of analysis is very important because not all SAR image degradation factors can be compensated using digital signal processing algorithms.

Analysis of Interferometric Synthetic Aperture Radar Technique

In this article we would llke to present our results of Interferometric Synthetic Aperture Radar Processing. This technique is extension of classical SAR and allows us to obtain high resolution digital elevation model of observed scene.