IEEE Transactions on Aerospace and Electronic Systems

This paper proposes a trajectory prediction algorithm based on target intention recognition and distribution cropper for maneuverable targets. Different from the existing research, the trajectory prediction is decoupled into the structure of intention recognition and trajectory extrapolation to introduce intercept engagement and distribution cropper. Firstly, the intention recognition and traject…

Due to the absence of atmospheric interference, space-based terahertz (THz) inverse synthetic aperture radar (ISAR) can obtain high-resolution images of space satellites at long ranges, offering significant application potential. However, the intricate relative dynamics between the sensing platform and the target induce non-uniform variations in the radar-target aspect angle, resulting in severe …

This paper presents a rapid ascent trajectory planning method for a rocket-based combined-cycle powered aerospace plane subject to terminal point deviation caused by mission uncertainties. The main feature lies in that the proposed algorithm achieves rapid control updates and accurate trajectory tracking by incorporating the Legendre pseudospectral convex optimization and the improved model predi…

In this paper, when actuator failure occurs, an adaptive fault-tolerant control (AFTC) strategy is proposed to solve the problem of attitude tracking control and vibration suppression in a flexible satellite system described by an ODE–PDE interconnected system. The moment of inertia matrix of the system and which actuator fails and when the failure occurs are unknown. To solve these problems, an …

This paper investigates the routing problem for mega low earth orbit (LEO) satellite constellations in adversarial environments. Due to the predictable orbital motion of LEO satellites, they are highly susceptible to malicious jamming from other constellations. We analyze the end-to-end delay performance under the threat of jamming attacks from adversarial medium earth orbit (MEO) constellation. …

To tackle the tracking control problem of Quadrotor unmanned aerial vehicles (UAVs), this paper proposes a dual-compensators-based fixed-time control strategy. Firstly, the model of quadrotor UAV is established under the conditions of strong gust disturbances, actuator failures, and saturation. Subsequently, a finite-time convergent nonlinear extended observer is designed specifically for strong …

In this paper, we investigate high-altitude platform station (HAPS) wireless networks for simultaneous non-orthogonal unicast and multicast transmissions. Specifically, stacked intelligent metasurface (SIM)-based wave-domain beamforming is proposed to enable efficient HAPS-to-ground communications. Also, the system performance is investigated from an energy-efficiency (EE) perspective, which is a…

In safety-critical domains such as avionics and industrial automation, the transmission of network traffic may be affected by transient failures that result in data errors. Time-Sensitive Networking (TSN) enhances traffic reliability through mechanisms like Frame Replication and Elimination for Reliability (FRER), which enables traffic to be multipath through the network by providing link redunda…

Pattern recognition of maneuvering target is challenging due to its rapidly changing patterns and uncertainties. Short-term trajectories are essential for capturing dynamic motion changes. However, existing deep-learning based methods rely on long-term trajectories to extract more comprehensive information, making them less effective with limited data. In this paper, we focus on recognizing short…

In recent years, radar automatic target recognition (RATR) using high-resolution range profile (HRRP) has become a research focus. In real-world, HRRPs frequently exhibit open set and long-tailed characteristics, collectively referred to as realistic HRRPrecognition (RHR). The main challenges in such RHR task include: (1) ensuring that tail classes receive sufficient training for feature represen…

In the presence of Gaussian noise and low-rank, partly homogenous clutter, detectors based on the full-rank assumption lose the constant false alarm rate (CFAR) property, while those relying on clutter nulling perform poorly for targets within the clutter subspace. This paper addresses the CFAR detection problem of Doppler distributed targets via invariance theory. Assuming the target lies in the…

Distributed radar can provide an efficient detection performance by accumulating signals from multiple widely separated radars. However, distributed radar systems usually face communication constraints, including bandwidth limitation, communication delay, packet loss, and bit error, which impede practical application. To the best of the authors' knowledge, investigating the distributed detection …

Network coverage in high-altitude mountainous regions remains a persistent challenge, primarily due to complex terrain and severe signal attenuation. To enable effective signal detection in such environments, this paper addresses the critical need for robust path planning for unmanned aerial vehicles (UAVs) under multiple operational constraints. In this paper, we propose a Multi-objective Hybrid…

The accuracy of in-orbit stellar refraction navigation is restricted by the global atmospheric spatiotemporal variations and the simplified stellar atmospheric refraction model. To address these issues, this article proposes a method for determining apparent height for stellar refraction navigation. The ERA5 global reanalysis dataset is employed to construct the global atmospheric refractive inde…

This work addresses the maneuvering target localization problem with measurements of bistatic range (BR), bistatic range rate (BRR) and derivative of bistatic range rate (DBRR) from a distributed multiple input multiple output (MIMO) radar. To achieve high robustness to outliers, we adopt an ℓ1 norm based approach, and formulate a least absolute deviation (LAD) problem with heterogeneous measurem…

This paper addresses multi-object systems, where objects may occlude one another relative to the sensor. The standard point-object model for detection-based sensors is enhanced so that the probability of detection considers the presence of all objects. A principled tracking method is derived, assigning each object an expected probability of detection, where the expectation is taken over the reduc…

This paper proposes a joint user scheduling and robust beamforming (BF) scheme to escalate demands for information freshness in low-earth orbit (LEO) satellite networks. Specifically, considering that the satellite is equipped with a uniform planar array and only imperfect channel state information is available, we first formulate a long-term average age of information (AAoI) minimization problem…

The bistatic space-based early warning radar (SBEWR) needs to detect air moving targets in the presence of strong ground clutter. Meanwhile, the rapidly changing geometric relationship between the satellite and the targets, particularly for highly maneuvering targets, results in severe range cell migration and Doppler cell migration. The combined effects of clutter and target defocus significantl…

This paper focuses on the differential privacy fusion filtering problem for multi-rate nonlinear systems over sensor networks based on signal-to-noise ratio (SNR), in which a compensation strategy with a single exponential smoothing method is employed to handle the multiple time series stemmed from the multi-rate sampling strategy. Considering the inherent vulnerabilities of the SNR-based sensor …

In a tethered satellite system on elliptical orbits, its in-plane angle can exhibit chaotic behavior. Due to the inherent unpredictability of chaos, conventional control methods often fail to stabilize the system. As the orbital eccentricity increases, the chaotic behavior becomes more pronounced, and the system may even exhibit global chaos. To broaden the application scenarios of the tethered s…