Results 171 to 180 of about 2,637 (215)

RFI suppression in SAR based on clutter estimation

2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, 2013
Radio Frequency Interference (RFI) can deteriorate imaging quality of low frequency band synthetic aperture radar (SAR). For SAR using Linear Frequency Modulation (LFM) signals, this paper proposes an RFI suppression method based on clutter estimation in range frequency domain. This method uses eigen-decomposition to complete RFI detection and gets the
Huan Wang, Jinping Sun, Yanping Wang, Shiyi Mao   +3 more
openaire   +1 more source

SAR clutter suppression using recursive waveforms

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
In this paper, we combine the waveform design method with the synthetic aperture algorithm to suppress clutter and generate clear microwave images of targets. The linear recursive model is introduced into the SAR operation principle and Kalman filter algorithm is used to estimate target and clutter responses in each azimuth direction based on their ...
Bingqi Zhu, Hui Sheng, Yesheng Gao, Kaizhi Wang, Xingzhao Liu   +4 more
openaire   +1 more source

New clutter suppression approach for multifunction radar-radar resource management for the clutter suppression

IEEE Aerospace and Electronic Systems Magazine, 1990
The use of constant-false-alarm-rate (CFAR) techniques to keep false alarm rates at a suitable low level is reviewed. Radar resource management for clutter suppression, a novel approach for multifunction phased-array radar that can more effectively suppress clutter, is proposed.
openaire   +1 more source

Frequency diverse statistic filtering for clutter suppression

International Conference on Acoustics, Speech, and Signal Processing, 2003
By combining the conventional order-statistic filtering concept with the split-spectrum processing (SSP) technique, a method called frequency-diverse statistic filtering is obtained. Three types of frequency-diverse statistic filters, namely, weighted mean, median, and absolute-minimization, are examined.
X. Li, Nihat M. Bilgutay, Jafar Saniie
openaire   +1 more source

Clutter suppression in search radars

1977 IEEE Conference on Decision and Control including the 16th Symposium on Adaptive Processes and A Special Symposium on Fuzzy Set Theory and Applications, 1977
A comparison of MTI and Optimum Pulse-Doppler processors is presented for the case where they coherently process the same number of pulses in a radar dwell. These results are presented in terms of probability of detection versus signal-to-noise or signal-to-clutter ratio, for a fixed false alarm probability.
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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   +1 more source

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   +1 more source

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.
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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