Results 171 to 180 of about 455,156 (214)
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Missing radar pulse clutter processing
IEEE Aerospace and Electronic Systems Magazine, 1991The degradation incurred with a conventionally weighted moving target indication (MTI) or Doppler filter radar when one of the return pulses is missing is investigated. It is shown that, for conventional MTI and Doppler filter bank processor, the loss in performance can be large.
M. Steiner, F.F. Kretschmer
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IEEE Transactions on Aerospace and Electronic Systems, 2005
Clutter is defined as any unwanted radar return. The presence of clutter in a range/Doppler cell complicates the detection of a target return signal in that cell. In order to quantify the effect of clutter on the probability of detection, we must first specify sets of models suitable for representing the clutter and target. The simplest and most common
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Clutter is defined as any unwanted radar return. The presence of clutter in a range/Doppler cell complicates the detection of a target return signal in that cell. In order to quantify the effect of clutter on the probability of detection, we must first specify sets of models suitable for representing the clutter and target. The simplest and most common
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MIMO radar limitations in clutter
2009 IEEE Radar Conference, 2009Recently discovered bounds for the clear-area available in the ambiguity domain for a MIMO radar waveform set are shown to be a significant limitation in radar applications having extended scatterer distributions. These limitations are demonstrated using an example from an experimental MIMO over-the-horizon radar.
G. J. Frazer +2 more
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Generalized radar clutter model
IEEE Transactions on Aerospace and Electronic Systems, 1999A commonly used density model for radar clutter is chi-square for power, or, equivalently, Rayleigh for amplitude. However, for many modern high resolution radar systems, this density underestimates the tails of the measured clutter density. Log normal and Weibull distributions have proved to be better suited for the clutter in these high resolution ...
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Detection in Heterogeneous Radar Clutter
2007 IEEE 15th Signal Processing and Communications Applications, 2007Classical algorithms that were derived with Rayleigh clutter assumption yield increased false alarm rate under Weibull clutter. In this study, a method for radar thresholding in range-heterogeneous Weibull radar clutter is proposed. The method employs expectation-maximization (EM) algorithm in estimation of the parameters and sets the threshold ...
Ulku Cilek Doyuran, Yalcin Tanik
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Signal Processing, 2019
Range dependent clutter suppression is a challenging problem in non-side-looking airborne radar, especially in the presence of range ambiguity. To deal with this problem, this paper proposes a two-stage adaptive clutter suppression method.
Cai Wen +4 more
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Range dependent clutter suppression is a challenging problem in non-side-looking airborne radar, especially in the presence of range ambiguity. To deal with this problem, this paper proposes a two-stage adaptive clutter suppression method.
Cai Wen +4 more
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Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere, 2000
Abstract Much attention has been paid to qualitative clutter removal in weather radar images, and some work is in progress to quantify the effect of clutter correction on radar precipitation measurements. The respective impacts on radar wind, however, have been largely neglected in routine work. Viz., ground clutter superimposed on a weather spectrum
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Abstract Much attention has been paid to qualitative clutter removal in weather radar images, and some work is in progress to quantify the effect of clutter correction on radar precipitation measurements. The respective impacts on radar wind, however, have been largely neglected in routine work. Viz., ground clutter superimposed on a weather spectrum
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A statistical radar clutter classifier
Proceedings of the IEEE National Radar Conference, 2003An algorithm that successfully classifies radar clutter into one of several major categories, including bird, weather, and target classes, is described. Parametric Bayes classification is applied to a set of features derived from the reflection coefficients computed using the multisegment version of Burg's formula.
W. Stehwien, S. Haykin
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Sea Clutter Cancellation for Passive Radar Sensor Exploiting Multi-Channel Adaptive Filters
IEEE Sensors Journal, 2019Sea clutter suppression in passive radar sensor is a challenging problem because the Doppler frequencies of low-velocity sea-surface targets are typically close to the spectrum of the sea clutter. Conventional approaches based on single-channel high-pass
Shengheng Liu, Yahui Ma, Yongming Huang
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