Results 211 to 220 of about 438,230 (253)

STAP for clutter suppression with sum and difference beams

IEEE Transactions on Aerospace and Electronic Systems, 2000
A unique approach for airborne radar clutter rejection is developed and evaluated. This spatial and temporal adaptive approach employs the sum and difference beams of an antenna, which has significant practical advantages because it can be implemented with no/little change to the front-end electronics of airborne systems where sum and difference beams ...
Russell D. Brown, Richard A. Schneible, Michael C. Wicks, Hong Wang, Yuhong Zhang   +4 more
openaire   +1 more source

Suppression of the sea clutter in marine radar system

IEEE International Conference on Acoustics Speech and Signal Processing, 2002
The purpose of this paper is to analyze the radar echo signal data in marine radar system, and we tackle a problem on suppression of the sea clutter on marine radar display by using Wavelet Transform, which gives optimum cut-off frequency with time (distance).
Koji Murai, Yuji Hayashi, Yuichi Miyoshi, Seiji Inokuchi   +3 more
openaire   +2 more sources

Adaptive transmitter weight design for clutter suppression

2010 2nd International Workshop on Cognitive Information Processing, 2010
The objective of this paper is to develop methods for enhanced clutter/interference suppression by redesigning the transmit pattern in the spatio-temporal domain to emphasize the target response and de-emphasize the clutter response. In this context, traditional adaptive transmitter weight design in the spatial domain to generate multiple spatial nulls
S. Unnikrishna Pillai, Ke Yong Li, Braham Himed   +2 more
openaire   +2 more sources

Suppression of Weibull clutter

1990
The suppression of radar clutter is a very important problem in modern radar technique, and is discussed in many papers and books. We are not going to discuss this problem in general, but will discuss some special problems concerned with Weibull clutter.
openaire   +1 more source

Clutter suppression scheme for vehicle radar

2010 IEEE Radio and Wireless Symposium (RWS), 2010
Vehicle radar receives echoes from the natural environment such as road and building. These echoes are called clutter which can be much higher than vehicle echo. It is therefore expect to improve the detection performance by summing all the radar echoes available from the vehicle.
Isamu Matsunami, Akihiro Kajiwara
openaire   +1 more source

IR Polarization for Natural Clutter Suppression

2018 IEEE Research and Applications of Photonics In Defense Conference (RAPID), 2018
IR Polarization can help to find man-made objects in scenes primarily made up of the natural environment. A model was developed to predict and explain results in short range, on-the-move situations. Test results show that Polarization contrast nearly always exceeds radiance contrast and generally suppresses background clutter.
Francis Pantuso, Collin Bright, Richard Harr, Michael Polcha, Aaron LaPointe   +4 more
openaire   +1 more source

Radar Waveforms for Suppression of Extended Clutter

IEEE Transactions on Aerospace and Electronic Systems, 1967
A common problem in waveform design is to adapt the transmitted signal to the target environment in order that the interference from extended fields of scatterers is reduced. This problem is investigated here for the special case of detection of a single target in the ``vicinity'' of an extended clutter space.
August W. Rihaczek, Richard L. Mitchell
openaire   +1 more source

Suppression of Ionospheric Es Clutter in HFSWR

2006 CIE International Conference on Radar, 2006
Ionospheric clutters from sporadic E-layer are often observed in 200 km-coverage HFSWR. One kind of the Es-layer clutters is found to have coherent time much longer than that of sea echoes. The feature is exploited in the proposal of a new algorithm to suppress this kind of clutter based on eigen value decomposition and subspace ...
Yin Wei, Wu Xiongbin, Cheng Feng, Wan Xianrong   +3 more
openaire   +1 more source

Clutter suppression algorithm for nonimaging data

1999 IEEE Aerospace Conference. Proceedings (Cat. No.99TH8403), 1999
A clutter suppression algorithm based on principle component analysis for overhead non-imaging infrared (ONIR) focal plane data is presented and its performance evaluated. The algorithm is novel in that (1) the principle components are derived from a small subset of the pixel histories and (2) probable target pixels are reevaluated in a way that ...
openaire   +1 more source

Clutter suppression and target detection based on biparametric clutter map CFAR

IET International Radar Conference 2015, 2015
Clutter map constant false alarm rate (CFAR) detectors have been utilized in radar systems, which usually uses local threshold estimates from background observations to maintain CFAR level. However, when the local observations contain irrelevant information and/or heavy clutter, its detection performance would be severely degraded. To solve the problem
C.Y. Wang, R.Y. Pan, J.H. Liu
openaire   +1 more source