Results 201 to 210 of about 1,347 (235)
Some of the next articles are maybe not open access.
Study on the impact of window functions in ground clutter suppression in ST radar signal spectra
TENCON 2019 - 2019 IEEE Region 10 Conference (TENCON), 2019Various signal processing window functions are applied on the back scattered signals received from the lower atmosphere by the ST radar facility at Advanced Center for Atmospheric Radar Research, Cochin. It is observed that the ground clutter present in the Doppler spectra of a particular range bin is either enhanced or suppressed with the usage of ...
Titu K Samson, Binu Paul
exaly +2 more sources
Sidelobe forming for ground clutter and jammer suppression for airborne active array radar
IEEE International Symposium on Phased Array Systems and Technology, 2003., 2004 We study the feasibility of ground clutter and jammer suppression in airborne active array radar by reducing the sidelobes in all directions pointing towards the ground or the horizon. We calculate the complex weighting necessary for achieving such an antenna pattern.
Bürger, W.
openaire +2 more sources
Ground clutter suppression in GPR using framing based mean removal and subspace decomposition
2017 International Symposium on Antennas and Propagation (ISAP), 2017Ground penetrating radar (GPR) is one of the effective tools for detecting subsurface objects. However, the existence of ground clutter negatively affects target signal extraction particularly for shallowly buried objects and/or weak target responses. Thus, the reliable clutter suppression method is needed for enhancing the target responses. This paper
Budiman P A Rohman, Masahiko Nishimoto
exaly +2 more sources
Research on ground clutter polarization suppression algorithm based on prior information
IET Conference ProceedingsJichuan Zhang
exaly +2 more sources
A comparative analysis of the Ground clutter suppression on Meteorological images
2019 6th International Conference on Image and Signal Processing and their Applications (ISPA), 2019Local Binary Pattern (LBP) is a gray scale-invariant local operator, it is encoded with each pixel by neighbourhood thresholding which is considered as powerful and simple in the case of real-time implementation. The latter is efficient in characterizing the texture and can be adapted to different problems.
Mehdia Hedir +2 more
openaire +1 more source
Suppression of ground clutter using an X‐band radar
Electronics and Communications in Japan (Part I: Communications), 1987AbstractMost of the clutter received by an L‐band air route surveillance radar obeys Weibull distribution with various values of the shape parameters. The L‐band radar has a frequency of 1.3 GHz and pulsewidth of 3 μs. Hence, the spatial resolution is as large as 450 m. The X‐band radar, on the other hand, ns.
Tsukasa Iwama +2 more
openaire +1 more source
Ocean clutter suppression for an HF ground wave radar
CCECE '97. Canadian Conference on Electrical and Computer Engineering. Engineering Innovation: Voyage of Discovery. Conference Proceedings, 2002At HF frequencies, the sea echo or clutter return is quite significant and can mask signals from targets travelling at or near the same Doppler of the resonant (Bragg) ocean waves. This paper presents a systematic method of reducing clutter signals so as to enable detection of targets travelling at speeds near the Bragg Doppler.
R. Khan, D. Power, J. Walsh
openaire +1 more source
Sparse LCMV beamformer design for suppression of ground clutter in airborne radar
IEEE Transactions on Signal Processing, 1995Cancellation of the ground clutter received at an airborne phased array radar is an inherently two dimensional problem. Clutter returns are Doppler shifted due to platform motion forcing the use of processors that can resolve targets in both velocity (Doppler) and azimuth.
Iain Scott, Bernard Mulgrew
openaire +1 more source
Tensor structure-based ground clutter suppression approaches for pulse doppler radar
Remote Sensing LettersBangzhen Xu, Xingyu Lu, Weimin Su
exaly +2 more sources
Ground clutter suppression: Preliminary analysis of Qujing incoherent scatter radar
2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE), 2018Incoherent scatter radar (ISR) detects the Thomson scatter echo of free electrons to inverse ionosphere parameters and is thought as the most powerful instrument to observe the ionosphere on the ground. In fact there are usually severe ground clutters around altitude 100km in the echo data.
Liandong Dai +3 more
openaire +1 more source