Satellite-based automatic dependent surveillance-broadcast (ADS-B) is an important technology for wide-area aircraft surveillance. To solve the problem of false target interference existing in the satellite-based ADS-B system, a position verification method with one satellite based on Doppler shift ...

There are factors of complex environments, target occlusion, and others. These factors lead to the lack of detection and low detection accuracy of existing depth learning foreign object tracking algorithms.A railway foreign object tracking technique based on spatial location and feature generalizati...

In view of feature spatial information loss caused by the reduction of a large number of parameters in the real-time semantic segmentation model and inaccurate segmentation category prediction caused by the lack of context information of features, a two-branch real-time semantic segmentation algorit...

Aiming at the problem of the difficult extraction of spatio-temporal dynamic correlation of flight delay data in a flight delay prediction model, a type of flight delay prediction model based on an attention-based adaptive graph convolution-gated recurrent unit (AAGC-GRU) is proposed. Firstly, the a...

For data flow errors caused by fault attacks during processor operation, this paper designed a configurable fault injection detection method based on RISC-V processor microarchitecture. Based on the RISC-V instruction set architecture, this method took advantage of its expandability to add custom ar...

In view of aircraft hydroplaning on wet and slippery pavement, a finite element model of aircraft tire-wet pavement was established by using the smoothed particle hydrodynamics (SPH) algorithm and compared with the coupled Eulerian-Lagrangian (CEL) model, which highlighted the superiority of SPH alg...

A few issues with the graph convolutional network-based 3D human pose estimation technique include the shared weight of all nodes, the incapacity to extract the multi-scale properties of the nodes, and the failure to take advantage of the topological relationships between neighboring nodes. In this ...

Compared with classical rough sets, neighborhood rough sets can process non-discrete and high-dimensional data, and get simplified data without reducing the ability of data processing. An attribute reduction approach of weighting neighborhood rough sets using the Critic method is proposed, aiming at...

for the reconstruction of parallel magnetic resonance imaging, a deep complex attention network (DCANet) model is proposed. A data consistency layer is used to maintain acquired k-space data unchanged, and a cascade network is formed. Additionally, since magnetic resonance images of multiple coils d...

The compression stability of composite thick plates was studied. Firstly, the compression test was carried out on the thick plate structure of the composite fuselage. It was found that the bottom skin of the stringer was buckling first, and the stringer did not play the role of wave isolation. Secon...

In an attempt to accurately analyze high load, the finite element model established by clinical CT data was unable to capture the fine geometric features and heterogeneous properties of vertebrae, leading to an inaccurate analysis of the high rate of thoracolumbar spine injuries on fighter pilots du...

The spin period of geosynchronous earth orbit (GEO) spin stabilized objects has a strong correlation with its ground-based photometric data period and functional attributes. With the spin period of the object as a bridge, the function determination of a GEO spin stabilized object can be realized by ...

In the existing blockchain copyright storage systems, various ring signatures occupied too much storage space, and the efficiency of the data consensus algorithm needed to be improved. The public keys of the ring members were accumulated using a dynamic accumulator in order to solve these issues. Va...

In order to optimize the endurance test cycle of the turbofan engine and reduce the number of triple red-line configuration modifications during the test, the equivalent design and compliance verification method of the endurance test cycle were studied. The damage characteristics of the original end...

Due to mechanical structure error and electrical interference, the produced flexible gyro has cross coupling. The influencing factors of cross coupling were analyzed, which were positioned as the perpendicularity of the iron core column of the differential inductance sensor and the circumferential d...

Icing detection is the premise and basis for the operation of aircraft icing protection systems, and it is the primary problem faced by icing protection. At present, the research on the probe icing process lacks the measured data, and the relevant laws need to be verified. Therefore, in order to sim...

The requirements for the compliant control quality of the space manipulator are continuously improved in space manipulation tasks. Using a single control method is likely to cause large end contact force overshoot or dynamic deviation. This study proposes and implements a force/position hybrid contr...

High-speed solenoid valve is the core control element of digital flow technology, and its dynamic response and effective duty cycle range seriously affect the flow control accuracy of the system. To further expand the effective duty cycle range, a phase-shifted pulse width modulation (PWM) voltage d...

An unmanned aerial vehicle path-following method under unknown time-varying wind disturbance was designed to solve the problem of unmanned aerial vehicle obstacle avoidance path-following at low altitudes. Firstly, a kinematic model of the unmanned aerial vehicle in the two-dimensional plane was giv...

In view of the guidance problem of the hypersonic vehicles in the glide-reentry segment, an online guidance strategy based on improved particle swarm optimization and whale algorithm was proposed. By considering its constraint model and shift conditions, a process constraint and terminal constraint ...

With the development of industrial technology, the health diagnosis and maintenance of centrifugal pumps are increasingly urgent. Combining digital twin and machine vision technology, this paper proposed an intelligent impeller fault diagnosis method for centrifugal pumps based on a digital twin flo...

The ones-stage object detection method has the characteristics of fast training speed and short inference time. However, its feature pyramid network (FPN) cannot suppress the background and noise information of the synthetic aperture radar (SAR) ship image, and the detection head has a prediction bi...

On the issue of how to effectively utilize radar resources to improve the accuracy and reliability of target detection, proposed a hybrid distributed phased array-multiple input and multiple output (PA-MIMO) radar system model and established a target detection model based on the Neyman-Pearson (NP)...

Safety-critical intelligent transportation systems (ITS) applications are surging in recent years. These kinds of applications not only have the accuracy but also the integrity of global navigation satellite system (GNSS) positioning services. In the field of aviation with an open environment, advan...

In order to solve the problems of initial population boundary clustering distribution, slow convergence speed, low accuracy and easy falling into local optimum in chimpanzee search algorithm, an improved chimpanzee optimization algorithm with multi-strategy fusion (SPWChoA) was proposed. Firstly, th...

The rudder surface effectiveness loss directly affects the gust alleviation effect of flexible aircraft, considering the rudder surface effectiveness loss is the key to the design of an active gust alleviation control system. In order to tackle the issue of gust interference in flexible aircraft, a ...

Traditional image signal processing (ISP) algorithms are cumbersome. Therefore, based on the PyNET model that can replace ISP algorithms, an end-to-end RAW image reconstruction method was proposed, called Py-CBAM. This method introduced an efficient attention mechanism and used it to redesign the mu...

The position analysis of mechanism is the basis of kinematics and dynamics research of mechanism.A conformal geometric algebraic (CGA) method for position analysis of seven-link Barranov truss is proposed to solve the problems of the traditional mechanism position analysis theory, such as the compli...

As the requirements for performance indicators of spacecraft platforms increase, the influence of micro-vibrations generated by flywheels on spacecraft platforms is becoming increasingly prominent and needs to be suppressed. Based on the modal characteristics of the upper housing of the flywheel, a ...

A challenging and crucial aspect of aircraft design is defining the boundary characteristics of the aircraft, which dictate their safety and flying performance. In order to increase the precision, effectiveness, and resilience of complex flow problems, we suggested in this study that adjoint optimiz...

In view of the combat air patrol (CAP) planning problem in air formation under the background of weak intelligence support in the far sea, a new patrol airspace planning method based on the elliptic fitting of the optimal detection route was proposed. First, the cooperative probability detection are...

A multi-UAV cooperative path planning approach based on the self-destruction mechanism and game predatory sparrow search algorithm (GPSSA) is suggested to address the issues of high time requirement and problematic convergence. Firstly, a single UAV path planning model and a multi-UAV cooperative pa...

In view of the low recognition rate of traditional low probability of intercept (LPI) radar signal recognition algorithms under low signal-to-noise ratios, a radar signal recognition algorithm based on high-order time-frequency features was proposed. The proposed algorithm firstly obtained the time-...

Images taken underwater frequently suffer from substantial degradation due to the varied capabilities of water particles to absorb light, which has a significant impact on how underwater robots perceive their surroundings. The intricacy of underwater environments and uncertainties in physical factor...

In order to solve the distributed cooperative guidance problem in the flight process of a high-velocity aircraft swarm, this paper proposed an adaptive topology optimization and guidance algorithm based on a minimum spanning tree. The algorithm constructed the topology graph of the communication lin...

A deep learning matching algorithm based on improved SuperPoint and linear transformer was proposed to solve the problem of difficult matching and high mismatching rates between visible and infrared heterologous images. Firstly, based on the SuperPoint network structure, the algorithm introduced the...