This paper proposes an unsupervised algorithm for airport runway area detection based on super-pixel PolSAR image classification. First, the simple linear iterative clustering (SLIC) algorithm are used to obtain super...
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Aiming at the problem that atmospheric scattering model-based haze removal methods are prone to degradation of haze removal performance due to inaccurate parameter estimation, a single-image haze removal network based...
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Infrared small target detection aims to segment small targets from the infrared images. Aiming at the problem of infrared small target detection, an improved algorithm is proposed based on DeeplabV3+ network. For the ...
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The Popular of Global Navigation Satellite System (GNSS) is attributed to its good performance. However, the performance of a conventional GNSS receiver is severely degraded or even failed to provide services in compl...
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Turbulence is very hazardous to the flight safety, which generally can be detected by airborne weather radar. In newly specification DO-220A revised by Radio Technical Commission for Aeronautics (RTCA), standards of e...
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The L-DACS operates as an inlay system between two adjacent channels of the Distance Measuring Equipment (DME) system since the spectrum resources in the L-band are scarce and fragmented. This DME signal severely impa...
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Wind turbines could have a serious impact on Air Traffic Control (ATC) radar system because of the complex electromagnetic scattering properties. In this paper, matching pursuit technology is studied to mitigate the w...
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ISBN:
(纸本)9781849199940
Wind turbines could have a serious impact on Air Traffic Control (ATC) radar system because of the complex electromagnetic scattering properties. In this paper, matching pursuit technology is studied to mitigate the wind turbines interference. Due to the large amount of calculation in the conventional MP algorithm, rotation rate of wind turbine and radar azimuth are firstly estimated based on the priori information, then matching pursuit algorithm is applied to mitigate the wind turbine clutter. Effectiveness of the proposed method is verified via simulation experiments.
Blind signal extraction(BSE) is an efficient way to recover the source signals from the observed signals. In this paper,a new adaptive algorithm of blind signal extraction based on the skewness was introduced for the ...
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ISBN:
(纸本)0780397371
Blind signal extraction(BSE) is an efficient way to recover the source signals from the observed signals. In this paper,a new adaptive algorithm of blind signal extraction based on the skewness was introduced for the signals whose probability distribution is not *** algorithm cooperated with the deflation procedure realizes the extraction of source signals one bye *** third-order statistics are used in the novel algorithm,so it can reduce the computational burden *** simulations confirm the validity and performance of the algorithm.
The accuracy of magnitude prediction is crucial for steganalysis schemes that use high order statistics in wavelet domain. The steganalysis performance can be improved by avoiding large prediction errors. In this pape...
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The weakness of ADS-B signals makes it vulnerable to jamming. In order to suppress jamming, the paper proposes an ADS-B anti-jamming approach with low-complexity based on a cross-antenna array. First, down-sampling th...
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ISBN:
(纸本)9781479989522
The weakness of ADS-B signals makes it vulnerable to jamming. In order to suppress jamming, the paper proposes an ADS-B anti-jamming approach with low-complexity based on a cross-antenna array. First, down-sampling the digital IF signals received by array, and estimating the covariance matrix using the down-sampled snapshots. Because of the different duration and different features of DOAs between ADS-B 1090ES signals and jamming, the larger eigenvalues of the estimated covariance matrix mainly consist of jamming. Then the array weight vector could be conducted by power inversion algorithm based on the covariance matrix obtained from the first step. Finally, jamming can be nulled by the array weight vector. Thus the proposed method would almost only suppress jamming and the output SINR would be improved sharply. Down-sampling reduces the complexity of the algorithm. Simulation and experiments results show the effectiveness of the proposed approach.
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