Adjusting radar transmitted waveform to its environment is one of the most important roles in cognitive radar; having the capability of updating transmitted waveforms in different applications is a key point. It has been shown in many studies that if the waveform is designed according to the target and clutter characteristics, the detection performance will improve significantly. The uncertaint...

Radar ice sounding allows for the retrieval of ice depth and provides information on basal topography, basal conditions, flow, and layering. In the prospect of a possible future satellite ice sounding mission, surface clutters are expected to severely hamper measurement of radar echoes from the depth due to the unfavourable observation geometry. Synthetic aperture radar (SAR) processing enables...

The VV-polarized W-band backscattering behavior of homogeneous ground clutter has been investigated by measuring the radar cross section per unit area of 1/16th scale rough surface terrain in a 1.56 THz compact radar range. An array of scale model ground planes was fabricated with the appropriate roughness to model smooth to rough soil terrain. In addition to studying the backscattering behavio...

Collection of radar sea-clutter for research purposes is typically performed from a clifftop looking out to sea as it is relatively simple and inexpensive. This constrains the radar look direction with respect to the wind and limits the grazing angle. To improve our understanding at high grazing angles in the range 15◦ to 45◦, the DSTO’s Ingara airborne X-band fully polarimetric radar has been ...

We describe new methods on the modeling of the ampli tude statistics of airborne radar clutter by means of alpha stable distributions We develop target angle and Doppler maximum likelihood based estimation techniques from radar measurements retrieved in the presence of impulsive noise thermal jamming or clutter modeled as a multivariate sub Gaussian random process We derive the Cram er Rao boun...

The influence of ground clutter contamination on the estimation of polarimetric radar parameters, horizontal reflectivity (Zh), differential reflectivity (Zdr), correlation coefficient (rhy), and differential propagation phase (fdp) was examined. This study aims to derive the critical level of ground clutter contamination for Zh, Zdr, rhy , and fdp at which ground clutter influence exceeds pred...

This paper deals with the estimation of range-Doppler plane in pulse Doppler radar system, accounting both for clutter-free scenario and clutter scenario. A modified adaptive multi-pulse compression (MAMPC) algorithm including the estimation stages of range dimension and Doppler dimension is proposed for clutter-free scenario, where each stage is implemented based on the gain constraint adaptiv...

In this study, the effects of non-sidelooking airborne radar clutter dispersion on space-time adaptive processing (STAP) is considered, and an efficient adaptive angle-Doppler compensation (EAADC) approach is proposed to improve the clutter suppression performance. In order to reduce the computational complexity, the reduced-dimension sparse reconstruction (RDSR) technique is introduced into th...

Coastal UHF radar provides a unique capability to measure the sea surface dynamic parameters and detect small moving targets, by exploiting the low energy loss of electromagnetic waves propagating along the salty and good conducting ocean surface. It could compensate the blind zone of HF surface wave radar at close range and reach further distance than microwave radars. However, its performance...