2023 Vol. 49, No. 1

column
Display Method:
Cover
Volume 49 Issue12023
iconDownload (17661) 1422 iconPreview
Pre-crash scenarios and AEB optimization between vehicle and two-wheeler
XU Xiangyang, HU Wenhao, ZHANG You, WANG Shuhan, HE Xia, CAO Yi
2023, 49(1): 1-9. doi: 10.13700/j.bh.1001-5965.2021.0184
Abstract:

The application of autonomous emergency braking (AEB) is faced with challenges of misidentification and unreasonable decision. Testing under typical scenarios can effectively improve the applicability of AEB. Based on the analysis of relevant research literature, two typical scenarios (S11 and S12) ...

Cooperative confrontation model of UAV swarm with random spatial networks
WANG Ershen, GUO Jing, HONG Chen, REN Hongfan, CHEN Aidong, SHANG Xinna
2023, 49(1): 10-16. doi: 10.13700/j.bh.1001-5965.2021.0206
Abstract:

UAV swarm cooperative confrontation is a development direction for future war. In order to highlight the advantages of the swarm such as strong attack, difficult defense and high flexibility, it is an important research direction to effectively model the complex system of high-dimensional, strong dy...

Quantitative method of influence of thermal runaway gas combustion on thermal runaway propagation of lithium-ion battery
ZHANG Qingsong, LIU Tiantian, ZHAO Ziheng
2023, 49(1): 17-22. doi: 10.13700/j.bh.1001-5965.2021.0212
Abstract:

In order to quantify the effect of thermal runaway gas produced in the thermal runaway process of lithium-ionbattery on thermal runaway propagation, based on the energy conservation equation and the equivalent substitution method, this paper presents a method to calculate the contribution of thermal...

Lie mechanism based on phase transfer entropy of EEG signals
WEI Sihong, ZHANG Jiaqi, LI Feng, KANG Qianruo, GAO Junfeng
2023, 49(1): 23-30. doi: 10.13700/j.bh.1001-5965.2021.0187
Abstract:

Lying is a complex cognitive process whose executive function requires the participation of different brain regions. And the interaction between these brain regions has been confirmed by related research. In view of the problems of limited current EEG signal feature extraction methods and the unclea...

Research on multi-scale thermal safety of lithium-ion power battery system
ZHANG Yangang, GUO Xuxu, XUE Wenyang, ZHANG Zhiwen, LIANG Junfei, WANG Hua
2023, 49(1): 31-44. doi: 10.13700/j.bh.1001-5965.2021.0167
Abstract:

As the most important core component of electric vehicles, the lithium-ion power battery system requires improvement in power performance, safety, and reliability for further large-scale development of electric vehicles in China. Thermal safety issues of lithium-ion power batteries may occur through...

ORB-SLAM2 algorithm based on improved key frame selection
ZHANG Hong, YU Yuanzhuo, QIU Xiaotian
2023, 49(1): 45-52. doi: 10.13700/j.bh.1001-5965.2021.0173
Abstract:

To address the difficulties caused by the low accuracy and poor robustness of simultaneous localization and mapping (SLAM), an ORB-SLAM2 algorithm is proposed based on key frame selection. First, the relative pose between frames is calculated based on ORB-SLAM2. Second, to determine whether a new ke...

Aerial object tracking algorithm for UAVs based on dual-attention shuffling
JIN Guodong, XUE Yuanliang, TAN Lining, XU Jiankun
2023, 49(1): 53-65. doi: 10.13700/j.bh.1001-5965.2021.0177
Abstract:

A multi-scale real-time tracking algorithm for unmanned aerial vehicle (UAV) based on dual-attention shuffling is proposed to solve the problems of small size, large scale variation and similar object interference which often occur during UAV object tracking. First, considering the small number of t...

Multi-objective arrival sequencing and scheduling based on point merge system
ZHANG Junfeng, YOU Lubao, ZHOU Ming, YANG Chunwei, KANG Bo
2023, 49(1): 66-73. doi: 10.13700/j.bh.1001-5965.2021.0199
Abstract:

Increasing traffic demand and the saturated terminal airspace call for safer flight performance and more efficient control performance. Therefore, this paper focuses on the multi-objective arrival sequencing and scheduling based on point merge system (PMS). Firstly, the four-dimensional trajectory p...

Behavior based MOOC user dropout predication framework
CHEN Hui, BAI Jun, YIN Chuantao, RONG Wenge, XIONG Zhang
2023, 49(1): 74-82. doi: 10.13700/j.bh.1001-5965.2021.0188
Abstract:

Though the massive open online courses (MOOC) have greatly changed the way of learning, properly understanding the user’s behavior and then predication of dropout is one of the most challenging tasks. MOOC have significantly altered the way that people learn, yet one of the most difficult challenges...

Application and prospect of additive manufacturing technology in manned space engineering
LIU Yang, ZHOU Jianping, ZHANG Xiaotian
2023, 49(1): 83-91. doi: 10.13700/j.bh.1001-5965.2022.0455
Abstract:

In recent years, the application of additive manufacturing technology in manned space engineering has developed rapidly. This paper summarizes the additive manufacturing technologies used in manned space engineering, such as fused deposition modeling technology, selective laser melting technology, w...

High temperature thermal conductivity estimation method of inorganic-organic hybrid phenolic composites
ZHANG Hongjun, LI Haiqun, KANG Honglin, LUO Jinling
2023, 49(1): 92-99. doi: 10.13700/j.bh.1001-5965.2021.0170
Abstract:

The inorganic-organic hybrid phenolic composite (IPC) tends to be widely used for the thermal protection of near-space hypersonic vehicles. The thermal conductivity estimation of IPCs plays an important role in the fine design of thermal protection system. A thermal conductivity identification metho...

Boundary protection control method of helicopter power system based on flight test analysis
SONG Zhaorui, ZHAO Jingchao, YANG Wenfeng
2023, 49(1): 100-105. doi: 10.13700/j.bh.1001-5965.2021.0431
Abstract:

Turboshaft engine is the main part of the power system of rotor aircraft such as helicopter. Once the key engine parameters exceed the limit, the method of reducing fuel quantity and power is generally adopted to limit, which will temporarily reduce the speed of power turbine, making it about 4%−6% ...

Method of improving tracking precision of planning path for impact rollers
SONG Erbo, YAO Yangping
2023, 49(1): 106-114. doi: 10.13700/j.bh.1001-5965.2021.0495
Abstract:

In recent years, the application of unmanned impact rollers in high embankment engineering of airport has become a new trend. However, large tracking errors often occur at the start and the end point of the headland, which affects the compaction effectiveness of the working area. In this paper, a pa...

Air freight route planning based on transshipment under air alliance
YAN Yan, MA Xiaolai
2023, 49(1): 115-127. doi: 10.13700/j.bh.1001-5965.2021.0166
Abstract:

In order to solve the problems of the high cost of air transportation and waste of idle transportation resources, this paper puts forward the research on route optimization of aircraft based on transshipment under route alliance. Firstly, based on the problem of cargo transfer, considering the impac...

Joint attitude determination and spoofing detection method using three antennas
CHEN Jiajia, YUAN Hong, XU Ying, YU Fengzheng
2023, 49(1): 128-137. doi: 10.13700/j.bh.1001-5965.2021.0189
Abstract:

The security of the global navigation satellite system (GNSS) has aroused widespread concern. The multiple-antennas method has become the most effective spoofing detection method due to its unique spatial characteristics. A joint attitude determination and spoofing detection method using three anten...

Amended SRCKF algorithm based on minimum variance of innovation
YANG Yongjian, GAN Yi, LI Chunhui, DENG Youwei, XIAO Bingsong, PENG Fang
2023, 49(1): 138-144. doi: 10.13700/j.bh.1001-5965.2021.0202
Abstract:

The model errors in the target tracking process will lead to the degraded performance and decreased filtering accuracy of the square-root cubature Kalman filter (SRCKF). Amended Kalman filter (AKF) can solve this problem effectively, but it is difficult to be applied to nonlinear filtering. To overc...

Fast detection method of mental fatigue based on EEG signal characteristics
ZHANG Peng, ZHOU Qianxiang, YU Hongqiang, WANG Chuan
2023, 49(1): 145-154. doi: 10.13700/j.bh.1001-5965.2021.0211
Abstract:

During the flight in space station, astronauts are prone to mental fatigue, which is the main factor that affects the efficiency of operations and causes errors. For this reason, studying rapid detection methods for human mental fatigue will help ensure the safety of on-orbit operations. The charact...

Piston pump fault diagnosis based on Siamese neural network with small samples
GAO Haohan, CHAO Qun, XU Zi, TAO Jianfeng, LIU Mingyang, LIU Chengliang
2023, 49(1): 155-164. doi: 10.13700/j.bh.1001-5965.2021.0213
Abstract:

Aiming at the problems of low accuracy and under-fitting in current fault diagnosis methods for piston pumps based on deep neural networks with small samples, a new fault diagnosis method for piston pumps based on Siamese neural networks was proposed. A test bench for piston pumps was built to colle...

Robust multiple watermarking algorithm for color image via BEMD and DCT
HU Kun, LI Cong, HU Jianping, WANG Xiaochao, DU Ling, WANG Hongfei
2023, 49(1): 165-176. doi: 10.13700/j.bh.1001-5965.2021.0214
Abstract:

In order to solve the problem that the color image watermarking algorithm has low algorithm fault tolerance, and the size matching problem between the host image and the watermark image during embedding, and to improve the robustness of the algorithm in attack resistance, this paper proposes a robus...

Infrared radiation characteristics of carbon/glass hybrid composites under low-velocity impact
ZHAO Zhibin, YANG Zhengwei, LI Yin, KOU Guangjie, CHEN Jinshu, ZHANG Wei
2023, 49(1): 177-186. doi: 10.13700/j.bh.1001-5965.2021.0174
Abstract:

Carbon/glass hybrid composites have shown great potential in industrial applications. The infrared radiation characteristics of carbon/glass hybrid composite laminates and two types of non-hybrid composites under low velocity impact were studied experimentally by infrared thermography. The damage mo...

Performance of a novel polyvinyl alcohol/polyethylene glycol hydrogel for heat sink
YIN Jianbao, XING Yuming, HAO Zhaolong, WANG Shisong, WANG Zixian, HOU Xu
2023, 49(1): 187-194. doi: 10.13700/j.bh.1001-5965.2021.0181
Abstract:

To study the feasibility and potential of hydrogels for thermal management, a novel polyvinyl alcohol (PVA) /polyethylene glycol (PEG) composite hydrogel heat sink with good mechanics and economy was prepared by freezing-thaw method. The size of the sink is 60 mm×60 mm×2 mm, and self-cooling is real...

Proximal policy optimization for UAV autonomous guidance, tracking and obstacle avoidance
HU Duoxiu, DONG Wenhan, XIE Wujie
2023, 49(1): 195-205. doi: 10.13700/j.bh.1001-5965.2021.0182
Abstract:

We established a Markov decision process model with two stages of long-distance autonomous guidance and short-distance companion flight avoidance for multi-rotor UAVs to track dynamic ground targets. An improved proximal policy optimization (PPO) algorithm is proposed. Considering that the data rece...

Noncontact damage imaging method in lattice sandwich structures
ZHAO Qian, FENG Kan
2023, 49(1): 206-211. doi: 10.13700/j.bh.1001-5965.2021.0194
Abstract:

Aiming at the damage problems such as debonding of lattice sandwich structure, a non-contact damage imaging technology based on high-frequency dynamic response is proposed. The high-frequency response of the structure is analysed according to the non-baseline damage index to realize debonding damage...

Blind source extraction of complex non-Gaussian signals based on convolution linear mixture model
LI Miaomiao, LYU Xiaode, WANG Ning, LIU Zhongsheng
2023, 49(1): 212-219. doi: 10.13700/j.bh.1001-5965.2021.0197
Abstract:

Due to the multipath effect of the radar signal, the blind source separation algorithm based on the instantaneous linear mixture model is no longer applicable. A blind source extraction method for complex non-Gaussian signals based on the FastICA algorithm is proposed. The mixed system is modeled as...

Adaptively robust multi-sensor fusion algorithm based on square-root cubature Kalman filter
LI Chunhui, MA Jian, YANG Yongjian, XIAO Bingsong, DENG Youwei
2023, 49(1): 220-228. doi: 10.13700/j.bh.1001-5965.2021.0201
Abstract:

To deal with the problem that the square-root cubature Kalman filter (SRCKF) will have declined filtering performance or even filtering diverge when model errors and abnormal measurements occur, an adaptively robust multi-sensor fusion algorithm is proposed. Firstly, a robust subsystem is designed b...