Xuejing Zhang

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Image registration is fundamental and crucial to remote sensing. However getting highly accurate registration performance automatically and fast for large-field images consistently is a challenge. As a work around to this problem, we propose a new image registration concept based on visual attention in this paper. This concept employs the advantages of(More)
A new method is presented to effectively estimate the direction-of-arrival (DOA) of a source signal and the phase errors of a sensor array with arbitrary geometry. Assuming that one sensor (except the reference one) has been calibrated, the proposed method appropriately reconstruct the data matrix and establish a series of linear equations with respect to(More)
Suffering from ambiguous estimation or heavy computation complexity load, the radial velocity estimation of moving targets becomes the bottleneck of the synthetic aperture radar-ground moving target indication system. In order to improve the radial velocity estimation efficiency, we have proposed an efficient Radon transform (RT) estimation (ERTE) method by(More)
Synthetic aperture radar (SAR) is a powerful electro-optic sensor for maritime use regardless of impact of time and meteorological conditions. Notably, ship detection plays an important role in maritime mandates, such as traffic surveillance, pollution control, fisheries and smuggling monitoring. With the ever increasing resolution, SAR imagery with high(More)
In this paper, we investigate the location and velocity joint estimattion performance for distributed radars on moving platforms, each platform is equipped with phased array radar. The distributed radars system can be inplemented as non-coherent MIMO radar. Firstly, this paper presents maximum likelihood estimation of location and velocity, and then the(More)
This paper proposes a novel mainlobe interference suppression method based on eigen-projection preprocessing and beam pattern reshaping. In view of the eigen-beam, we can easily determine the existence of the multiple mainlobe interferences, and then construct the eigen-projection matrix to ρ reprocess the echo data. Meanwhile, a convex programming(More)
This paper presents a novel accurate array response control algorithm, abbreviated as <inline-formula> <tex-math notation="LaTeX">$ {\text {A}}^2\text {RC}$</tex-math></inline-formula>, and its application to array pattern synthesis. The proposed <inline-formula><tex-math notation="LaTeX">$ {\text {A}}^2\text {RC}$</tex-math> </inline-formula> algorithm(More)
This paper mainly focus on the transmit and receive sensors joint selection problem of distributed MIMO radar in target tracking scienario. Beacause of the limited resources of radars, a subset of radars need to be selected in MIMO radar network at every intance while making the performance to its best. For that purpose, posterior cramer-rao lower bound(More)