Narrowband signal localization based on enhanced LAD method

In this paper, an enhanced localization algorithm based on double thresholds (LAD) is proposed for localizing narrow band signals in the frequency domain. A simplified LAD method is first studied to reduce the computational complexity of the original LAD method without performance loss. The upper an...

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Veröffentlicht in:Journal of communications and networks 2011, 13(1), , pp.6-11
Hauptverfasser: Jia, Ke Xin, He, Zi Shu
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description In this paper, an enhanced localization algorithm based on double thresholds (LAD) is proposed for localizing narrow band signals in the frequency domain. A simplified LAD method is first studied to reduce the computational complexity of the original LAD method without performance loss. The upper and lower thresholds of the simplified LAD method are directly calculated by running the forward consecutive mean excision algorithm only once. By combining the simplified LAD method and binary morphological operators, the enhanced LAD method is then proposed and its performance is simply discussed. The simulation results verify the correctness of discussion and show that the enhanced LAD method is superior to the LAD with adjacent cluster combining method, especially at low signal-to-noise ratio.
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subjects Applied sciences
Binary phase shift keying
Computational complexity
Detection, estimation, filtering, equalization, prediction
Estimation
Exact sciences and technology
Forward consecutive mean excision (FCME)
Frequency domain analysis
Information, signal and communications theory
localization algorithm based on double thresholds (LAD)
narrowband (NB) signal
Niobium
Signal and communications theory
Signal to noise ratio
Signal, noise
Telecommunications and information theory
Vectors
전자/정보통신공학
title Narrowband signal localization based on enhanced LAD method
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