The electro-mechanical brake (EMB) is a true brake-by-wire system that completely eliminates hydraulic/pneumatic components, enabling decoupling between driver and vehicle, achieving higher response speed, and providing more precise braking force control. As an ideal braking actuator for high-level ...

Current deep learning-based image dehazing algorithms usually use traditional convolutional layers when extracting features, which easily cause loss of information, such as details and edges of the image, ignore the location information of the image in feature extraction, and neglect the original in...

A high-quality complete initial graph can effectively improve the performance of incomplete multi-view clustering. However, inappropriate filling of missing values will lead to the initial graph losing the underlying structure of the data, and incomplete fusion of affine graphs of each view will mak...

As the pre-order step of convolutional neural network (CNN) computing, image preprocessing is indispensable but time-consuming. To accelerate image preprocessing, a method based on RISC-V vector extension was proposed to accelerate eleven image preprocessing algorithms such as gray scale processing,...

The bounding box regression loss effect is limited, and the multi-scale feature representation ability is insufficient in the YOLOX algorithm, which leads to inaccurate detection results. To address this issue, an object detection algorithm based on distance shape of generalized intersection over un...

To address the issue of low brightness and poor visual effect of unmanned aerial vehicles (UAVs) in low illumination conditions, this paper established a low illumination dataset of UAV aerial photography and proposed a low illumination image enhancement algorithm for UAV aerial photography with col...

Aircraft anti-skid braking system (AABS) has the characteristics of strong time variability, strong unpredictability, and many internal and external interference factors. Therefore, an integral sliding mode control (ISMC) method of AABS with variable exponential fractional order exponential reaching...

Aero-engine faces the problems of corrosion and erosion when working in an atmospheric environment for a long time, and the features of fault parameters are not obvious. Therefore, an accurate aero-engine fault diagnosis method is of great significance to ensure the safe operation of aircraft. To im...

Problems with flight conflicts, difficult deployment, lengthy wait times, and high carbon emissions are becoming more frequent as a result of the continuous growth in air traffic, the saturation of available airspace, and the rigidity of the conventional fixed approach procedure used in the terminal...

In order to improve the transmission rate of multi-user mobile communication downlink wireless transmission systems, a resource optimization method for multi-unmanned aerial vehicle (UAV) auxiliary communication systems based on user scheduling and trajectory optimization is proposed. The proposed m...

Wavelet threshold denoising is insufficient, and feature frequency extraction of empirical mode decomposition (EMD) is unclear. To address these issues, a fault diagnosis method of rolling bearings based on sparrow search algorithm - improved wavelet threshold-EMD (SSA-IWT-EMD) was proposed. Firstly...

Aiming at the requirements of distributed braking and high-level automatic driving, a brake-by-wire unit based on a direct drive pump-valve cooperative is designed, to realize the wheel cylinder pressure regulation, the hydraulic pump directly driven by the electromagnetic linear actuator coordinate...

A rolling bearing fault diagnostic approach based on mixture domain attention mechanism (MDAM)-GhostCNN is developed to address the issues of inadequate feature extraction, complicated computation, and low recognition accuracy under varied working conditions in conventional fault detection methods. ...

in industrial production, due to the difference in the distribution of source domain data and target domain data and the small amount of labeled fault data, the accuracy of domain adaptation-based bearing fault diagnosis algorithms proposed in the past is generally not high. In view of this, the mul...

In order to study the flow and heat transfer characteristics of triple periodic minimal surfaces (TPMS) in an air-fuel heat exchanger, the influence of structural parameters on the performance of the heat exchanger was analyzed. By using the Taguchi method, the Nusselt number and friction coefficien...

In view of reduced large-scale object detection accuracy caused by the feature pyramid network (FPN) in object detection and the inconsistency of the semantic characteristics of the two sub-tasks of object detection, a new model based on adjacent feature fusion (AFF) and feature decoupling network (...

An aircraft surveillance data fusion method based on a Transformer and attention mechanism is proposed to address the issues of low monitoring accuracy and position jump in a single surveillance source for aircraft in the flight area. Prior to assigning weight values to various surveillance sources ...

Aiming at the research of large-scale satellite constellation, the research content of communication resources is put forward. With the successful construction of several low-orbit constellations, the commercialization of large-scale satellite constellations has begun. This kind of large-scale satel...

Since the complex network constructed based on the unified spacing standard does not take into account the differences in aircraft type operation, it cannot meet the refined requirements of air traffic complexity analysis under trajectory based operation (TBO). A complex network-based air traffic co...

Under aircraft cabin inflow impact, the inadequate dynamic regulation speed of the pneumatic cabin pressure control system (PCPCS) may lead to a cabin pressure spike, causing “barotrauma”. Therefore, the working principle of the PCPCS was analyzed, and it was pointed out that the balance chamber may...

The unsteady aerodynamic characteristics of parafoils are a matter of flight stability and flight safety and are worthy of in-depth study. In this paper, the computational fluid dynamics (CFD) method was used to carry out an unsteady numerical simulation of the parafoil airfoil under the dynamic cha...

The current network time reliability evaluation methods only consider the effect of inherent uncertainty but ignore the impact of epistemic uncertainty due to a lack of failure information on reliability evaluation results. To address this issue, a new method based on uncertainty theory was proposed...

In view of the friction and heat flux prediction problems in the hypersonic flows around a lift body, the influence of different gas models (perfect gas and equilibrium gas), slip boundary models (M-S and Le), and incoming flow conditions (height, Mach number, and wall temperature) on the prediction...

A key technology for the safe landing of spacecraft in powered descent is to solve the six degrees of freedom(6-DoF) powered descent guidance problem in real time. This problem is a fuel-optimal problem with multiple constraints. In this paper, three optimization methods are established by three ind...

The maximum aerodynamic load 3 h before the launch of the rocket is one of the important data to determine whether the rocket launch can be carried out as planned, and the different characteristics between 3 h before rocket launch and launch time have rarely been studied. The maximum aerodynamic loa...

Accurate identification of space radiation particles is crucial for both scientific research and engineering applications. Existing particle identification methods, including detector telescope methods, electrostatic analysis time-of-flight methods, time-of-flight energy methods, and waveform analys...

In view of the problems of low probability of acquisition (LPI) radar signal recognition in low signal-to-noise ratio (SNR) and complex network model, an LPI radar signal recognition method based on time-frequency reassignment and multi-scale residual network was proposed. The time-frequency reassig...

Control coupling is a major problem for advanced aircraft with thrust vector/aerodynamic rudder layouts, as the performance of numerous control loops cannot be balanced using conventional single loop control parameter design techniques. Therefore, a control law parameter optimization method based on...

Mechanical elastic electric wheel is a new type of non-pneumatic tire, which has the advantages of explosion-proof, anti-puncture, etc. In this paper, based on the distributed vehicle matching with the electric wheel, a robust optimal sliding mode (ROSM) control strategy is proposed to improve the y...

When a lunar detector encounters unexpected conditions and needs a return to the lunar orbiter or Earth, the lunar ascender should be able to plan an appropriate ascent and rendezvous trajectory independently in emergency cases. In this paper, a direct ascent and rendezvous trajectory optimization m...

This paper investigated the directed interactive topology optimization design problem for multi-agent affine formation maneuver control. Firstly, by considering the optimization indexes such as information interaction cost and energy consumption during information spreading, a directed topology opti...

An anti-sweep jamming method for frequency modulation (FM) fuze based on outlier reconstruction was proposed for the problem of FM fuze against sweep jamming. Based on the iterative filtering decomposition (IFD) algorithm, the intermediate frequency signal of fuze was decomposed into intrinsic mode ...

The study of the intelligent algorithms for the flexible job shop scheduling issue (FJSP), a scheduling problem with a broad range of application backgrounds, is very relevant both academically and practically. To address FJSP with the objective of minimizing the maximum completion time, this paper ...

With the continuous innovation of GNSS technology, its application fields continue to expand. Because of its all-weather capabilities, low cost, and high spatiotemporal resolution, Global Navigation Satellite System-Reflectometry (GNSS-R) sea surface altimetry has many benefits in the field of ocean...

This research proposes a micro expression recognition network that incorporates LBP and parallel attention method to address the issues of small feature discrimination, background noise interference, and weak intensity of facial micro-expression changes. The network inputs the RGB image into the den...