DOA estimation of LFM signal based on Krylov subspace method
Sign Up to like & getrecommendations! Published in 2022 at "Telecommunication Systems"
DOI: 10.1007/s11235-021-00859-x
Abstract: Direction of arrival estimation of LFM signal is an essential task in radar, sonar, acoustics and biomedical. In this paper, a short time Fourier transform multi-step knowledge aided iterative generalized minimum residual (STFT-MS-KAI-GMRES) approach is… read more here.
Keywords: estimation lfm; estimation; krylov subspace; lfm signal ... See more keywords
Stochastic resonance induced by an unknown linear frequency modulated signal in a strong noise background.
Sign Up to like & getrecommendations! Published in 2020 at "Chaos"
DOI: 10.1063/5.0002134
Abstract: Stochastic resonance (SR) is widely used as a signal enhancement technique in recovering and enhancing periodic or aperiodic signals submerged in noise. However, system parameters and noise intensity tend to influence the SR performance. To… read more here.
Keywords: frequency modulated; resonance; stochastic resonance; lfm signal ... See more keywords
A method for LFM signal parameter estimation based on MWC system and STFT-DPT
Sign Up to like & getrecommendations! Published in 2023 at "AIP Advances"
DOI: 10.1063/5.0134970
Abstract: A method of estimating linear frequency modulation (LFM) signal parameters using compressed sampling (CS) data of a Modulated Wideband Converter (MWC) system is proposed. The short-time Fourier transform algorithm is used to analyze the CS… read more here.
Keywords: estimation; frequency; mwc system; lfm signal ... See more keywords
The OTDR With High Dynamic Range Based on LFM Signal and FDM
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2020.2974664
Abstract: In this paper, we proposed a kind of novel optical time-domain reflectometer (OTDR) which employed the linear frequency modulation (LFM), the fractional Fourier transform (FrFT), and electrical domain frequency division multiplexing (FDM) technologies. In our… read more here.
Keywords: dynamic range; otdr high; fdm; lfm signal ... See more keywords
On the Estimation of LFM Signal Parameters: Analytical Formulation
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2017.2767978
Abstract: We propose analytical formulations, approximations, upper and lower bounds for the angle sweep of maximum magnitude of fractional Fourier transform of mono- and multicomponent linear frequency modulated (LFM) signals. We employ a successive coarse-to-fine grid-search… read more here.
Keywords: estimation lfm; analytical formulation; lfm signal; parameters analytical ... See more keywords
Performances Analysis of Coherently Integrated CPF for LFM Signal Under Low SNR and Its Application to Ground Moving Target Imaging
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2017.2727508
Abstract: The detection and parameters estimation of linear frequency-modulated (LFM) signal are important for modern radar applications, but they are also challenged by the fact that echo signal is often of low signal-to-noise ratio (SNR) due… read more here.
Keywords: low snr; target; lfm signal; coherently integrated ... See more keywords