Julan Xie
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View article: Numerical study on aerodynamic performance and noise of protrusions structures near the trailing edge
Numerical study on aerodynamic performance and noise of protrusions structures near the trailing edge Open
Based on the NACA0012 airfoil, different types of protrusions namely serrated protrusions and arc-shaped protrusions are set near the trailing edge. Both new airfoils have a certain decrease in flow performance however there is a significa…
View article: Unsupervised-to-Supervised Sea Clutter Suppression via Adversarial Priori and Idempotent Generative Theorem
Unsupervised-to-Supervised Sea Clutter Suppression via Adversarial Priori and Idempotent Generative Theorem Open
Marine radar is widely employed in ocean monitoring systems. However, the presence of sea clutter and noise significantly hampers the detection performance of marine radar. In this paper, we propose an unsupervised-to-supervised sea clutte…
View article: Relative Entropy-Based Constant-Envelope Beamforming for Target Detection in Large-Scale MIMO Radar With Low-Resoultion ADCs
Relative Entropy-Based Constant-Envelope Beamforming for Target Detection in Large-Scale MIMO Radar With Low-Resoultion ADCs Open
Hybrid digital/analog architecture and low-resolution analog-to-digital/digital-to-analog converters (ADCs /DACs) are two low-cost implementations for large-scale millimeter wave (mmWave) systems. In this paper, we investigate the problem …
View article: Monopulse Estimation of Unknown Polarization for Conformal Phased Array with Arbitrarily Oriented Dipoles
Monopulse Estimation of Unknown Polarization for Conformal Phased Array with Arbitrarily Oriented Dipoles Open
In this paper, a novel monopulse estimator is proposed to surmount obstacles caused by unknown polarized pattern and the difference among each dipole orientation. Polarized pattern often alters the phased array response and we could hardly…
View article: Null broadening adaptive beamforming based on covariance matrix reconstruction and similarity constraint
Null broadening adaptive beamforming based on covariance matrix reconstruction and similarity constraint Open
In this paper, a procedure for the null broadening algorithm design with respect to the nonstationary interference is proposed. In contrast to previous works, we first impose nulls toward the regions of the nonstationary interference based…
View article: Ionospheric decontamination based on sparse reconstruction for skywave radar
Ionospheric decontamination based on sparse reconstruction for skywave radar Open
Ionospheric phase decontamination is the key factor to improve the target detection capability of skywave radar. In this paper, a new ionospheric phase decontamination algorithm is proposed based on sparse reconstruction. We transform the …
View article: A robust generalized sidelobe canceller via steering vector estimation
A robust generalized sidelobe canceller via steering vector estimation Open
In the presence of the direction of arrival (DOA) mismatch, the performance of generalized sidelobe canceller (GSC) may suffer severe degradation due to the gain loss of the desired signal in the main array and cancellation. In this paper,…