2023 Vol. 49, No. 6

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Volume 6 Issue E-journal
Volume 49 Issue62023
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Mural inpainting progressive generative adversarial networks based on structure guided
CHEN Yong, CHEN Jin, TAO Meifeng
2023, 49(6): 1247-1259. doi: 10.13700/j.bh.1001-5965.2021.0440
Abstract:

Aiming at the problems of improper structural repair and loss of mural detail reconstruction after repairing during the process of damaged mural image inpainting, mural inpainting progressive generative adversarial networks based on structure guided is proposed. Firstly, a structure generator is des...

A workpiece location algorithm based on improved SSD
LI Lin, FU Mingheng, ZHANG Tie, ZOU Yanbiao
2023, 49(6): 1260-1269. doi: 10.13700/j.bh.1001-5965.2021.0442
Abstract:

Accurate position information is essential for the robots to complete tasks such as picking, sorting, and assembling workpieces. However, the location accuracy of the prediction box is sensitive to the design of the loss function of the object detection algorithm. The four boundary information's cor...

Scattering characteristics of cavity-like targets based on carrier-to-cancellation method
AI Junqiang, LOU Changyu, ZHAO Jingcheng, ZHANG Yang, LI Jiabi
2023, 49(6): 1270-1277. doi: 10.13700/j.bh.1001-5965.2021.0428
Abstract:

Scattering from cavity-type targets such as air intakes is an important part of scattering from stealth vehicles, and the existing studies on scattering from cavity-type targets do not give results on scattering characteristics of cavity-type targets after installation. By applying the carrier-to-ca...

An efficient spatial interpolation method involving position shading
ZHOU Changcong, LIU Hongwei, HE Baoming, WANG Wei, TAN Chunlong
2023, 49(6): 1278-1286. doi: 10.13700/j.bh.1001-5965.2021.0443
Abstract:

The inverse distance weight interpolation method has a wide range of applications in aerospace, but it only considers the distance relationship and ignores the azimuth relationship. This shortcoming is addressed by the adjusted inverse distance weight interpolation method with position shading, alth...

Inverted residual target detection algorithm based on LGC
ZHANG Yunzuo, LI Wenbo, ZHENG Tingting
2023, 49(6): 1287-1293. doi: 10.13700/j.bh.1001-5965.2021.0452
Abstract:

Target detection based on deep learning is a research hotspot in computer vision. Although existing mainstream detection models usually increase the depth and width of the network to acquire better detection results, it is unamiable to suffer from parameters increasing and detection rate decreasing....

Lattice based strong designated verifier signature scheme
ZHANG Ping, CHI Huanhuan, LI Jinbo, SHANG Youlin
2023, 49(6): 1294-1300. doi: 10.13700/j.bh.1001-5965.2021.0445
Abstract:

The signer can identify a verifier using the strong designated verifier signature (SDVS) scheme. Only the selected verifier can confirm that the signature was created by the signer. Using the trapdoor generation process, we first built a lattice-based strongly designated verifier signature scheme an...

A robust adaptive filtering algorithm based on predicted residuals in integrated navigation
LIU Fei, WANG Zhi, DAI Yeying, LIU Xin, SUN Rui
2023, 49(6): 1301-1310. doi: 10.13700/j.bh.1001-5965.2021.0460
Abstract:

Integration of the global navigation satellite system (GNSS) and the inertial navigation system (INS) can effectively improve the accuracy and reliability of the navigation system, and therefore has been widely used in many applications. In particular, the Kalman filter is commonly used in the fusio...

Simulation of cavity flow at high Mach number based on adaptive unstructured hybrid mesh
ZHANG Peihong, TANG Yin, TANG Jing, LUO Lei, JIA Hongyin, ZHANG Yaobing
2023, 49(6): 1311-1318. doi: 10.13700/j.bh.1001-5965.2021.0424
Abstract:

The cavity flow, especially at high Mach numbers (Ma>2), is complicated due to strong shock waves and shear, separation vortices, and their mutual interference. The mesh distribution and the quality of mesh generation thus significantly affect simulation results. The adaptive detector based on un...

Reduced order method for large flexible wing structure based on dynamic response data
XIE Changchuan, ZHANG Duoyao, AN Chao
2023, 49(6): 1319-1330. doi: 10.13700/j.bh.1001-5965.2021.0439
Abstract:

Due to the flexibility of modern aircraft wing, geometric nonlinearity cannot be neglected. Based on dynamic response data samples, non-linear stiffness coefficients in structural dynamics equation are identified based on harmonic balance and fast Fourier transform, and a non-linear structural order...

Evaluation and optimization of departure flight schedule stability of airport group
WANG Xinglong, XU Yanfeng, XUE Yichen
2023, 49(6): 1331-1341. doi: 10.13700/j.bh.1001-5965.2021.0462
Abstract:

As China’s aviation traffic keeps growing, issues including dwindling flight schedule resources and major flight delays in airport clusters are rapidly becoming more and more prevalent. It is necessary to thoroughly study flight schedule optimization in airport groups. On the basis of defining the c...

Airport risk propagation network oriented to aviation network
GUAN Xiangmin, ZHAO Shuaizhe
2023, 49(6): 1342-1351. doi: 10.13700/j.bh.1001-5965.2021.0469
Abstract:

Aviation network traffic has increased day by day, and operations between airports are closely coupled. Airport risk diffusion has grown to be a major issue that affects their ability to operate safely and effectively. However, the spread mechanism of airport risk at the network level has not yet be...

Accelerated computational method of helicopter brownout based on DEM
TAN Jianfeng, HAN Shui, WANG Chang, YU Lingjun
2023, 49(6): 1352-1361. doi: 10.13700/j.bh.1001-5965.2021.0450
Abstract:

Numerical simulation of helicopter brownout is a major analysis method to investigate the evolution characteristics of helicopter brownout. However, the sand cloud is composed by many sand particles with complex characteristics resulting in a large computational cost. Based on a discrete element met...

Data processing technology of balanced dynamic characteristics based on wavelet reconstruction
ZHANG Junbin, XU Xiaobin, WANG Xiong, JIANG Wanqiu, SHU Haifeng, SUN Peng
2023, 49(6): 1362-1371. doi: 10.13700/j.bh.1001-5965.2021.0441
Abstract:

Forced vibration occurs in wind tunnel experiments, thus, the data measured by balance is the aliasing of forced vibration and the aerodynamic force of a model. This affects the accuracy of force data. To address this problem, data processing technology of balanced dynamic characteristics is propose...

Effect of nitrate on exfoliation corrosion of 2A12-T4 aluminum alloy under full-immersion corrosion condition
ZHANG Sheng, HE Yuting, NI Bo, XU Dawei, YAN Yong, CUI Changjing
2023, 49(6): 1372-1382. doi: 10.13700/j.bh.1001-5965.2021.0473
Abstract:

The 2A12-T4 aluminum alloy specimen exposed to the coastal atmosphere for 20 years was analyzed with spherical aberration corrected transmission electron microscope. The presence of nitrogen was first determined in the corrosion products at the deepest corrosion part of the longitudinal section of t...

Trajectory optimization algorithm of skipping missile based on deep reinforcement learning
GONG Kaiqi, WEI Hongkui, LI Jiawei, SONG Xiao, LI Yong, LI Yixin, ZHANG Yue
2023, 49(6): 1383-1393. doi: 10.13700/j.bh.1001-5965.2021.0436
Abstract:

The skipping flight process of the skipping missile can be modeled as a set of time-varying nonlinear differential equations which cannot be solved analytically. Therefore, it brings great difficulties to optimize the trajectory optimization of the skipping missile. To solve this problem, a deep rei...

GNSS instantaneous attitude determination method based on multi-variable constraints
CHEN Jiajia, YUAN Hong, XU Ying, YUAN Chao, GE Jian
2023, 49(6): 1394-1401. doi: 10.13700/j.bh.1001-5965.2021.0453
Abstract:

The traditional direct attitude determination or least square method depends on the correct fixation of the ambiguity. When the number of satellites is small or there is interference, the success rate of ambiguity will be greatly reduced, which will lead to inaccurate attitude determination results....

Degradation mechanism and influencing factors on lithium-ion batteries
YAN Xiaoyu, ZHOU Sida, LU Yu, ZHOU Xin’an, CHEN Fei, YANG Shichun, HUA Yang, XU Kai
2023, 49(6): 1402-1413. doi: 10.13700/j.bh.1001-5965.2021.0458
Abstract:

As the development of new energy vehicles has been considered an important strategy for China on becoming an automobile power, electric vehicles, and power batteries have been broadly researched. However, the difficulty in evaluating battery lifespan and health state limits the further application f...

Tethering behavior detection architecture based on RTT measurement of TCP flows
DAI Xianlong, CHENG Guang, LU Guangyin, JIN Binlei
2023, 49(6): 1414-1423. doi: 10.13700/j.bh.1001-5965.2021.0463
Abstract:

Tethering behaviour is the sharing of an Internet connection service with other connected devices by using a mobile smart device as a NAT gateway. It will share the smartphone's data plan, especially the unlimited data plan. So, it can put ISPs under additional pressure to operate mobile Internet an...

UAV reinforcement learning control algorithm with demonstrations
SUN Dan, GAO Dong, ZHENG Jianhua, HAN Peng
2023, 49(6): 1424-1433. doi: 10.13700/j.bh.1001-5965.2021.0466
Abstract:

The practical application of reinforcement learning (RL) in an unmanned aerial vehicle control is restricted by low learning efficiency. An algorithm integrating RL with imitation learning was proposed to improve the performance of autonomous flight control systems. By establishing new loss and valu...

Selection method of aim point for surface-to-air missile fragment against military aircraft
HOU Peng, PEI Yang, ZHANG Ruiwen, GE Yuxue, BAI Chunyu, ZHANG Yu
2023, 49(6): 1434-1445. doi: 10.13700/j.bh.1001-5965.2021.0467
Abstract:

To improve the damage efficiency of infrared imaging guided missile fragment warhead against military aircraft, a typical air-to-ground combat aircraft is taken as the research object, and the aim point selection method of fragmentation warhead against combat aircraft in two case is proposed. Based ...

Research and application of parallel infill sampling method based on non-dominated sorting
LIU Rui, BAI Junqiang, QIU Yasong
2023, 49(6): 1446-1459. doi: 10.13700/j.bh.1001-5965.2022.0831
Abstract:

The surrogate-based optimization method can greatly improve the efficiency of high-precision numerical optimization, while the infill sampling method is very important for the optimization result and efficiency. Several training samples can be infilled using the parallel infill sampling approach in ...

Experimental study on parallel control of axial dual-piezoelectric stack actuator
ZHENG Shufeng, ZHU Yuchuan, LING Jie, LIU Chang, LIN Wen
2023, 49(6): 1460-1470. doi: 10.13700/j.bh.1001-5965.2021.0432
Abstract:

Compared with common piezoelectric stack actuators, the dual-piezoelectric stack actuator exhibits displacement amplification functionality, but suffers from poor positioning accuracy due to the inherent hysteresis nonlinearity of piezoelectric materials. To reduce the hysteresis nonlinearity of dua...

Ground object classification based on height-aware multi-scale graph convolution network
WEN Pei, CHENG Yinglei, WANG Peng, ZHAO Mingjun, ZHANG Bixiu
2023, 49(6): 1471-1478. doi: 10.13700/j.bh.1001-5965.2021.0434
Abstract:

The point cloud acquired by airborne LiDAR has the complex characteristics of uneven distribution of categories and large differences in sample elevation. Existing methods are difficult to fully identify fine-grained local structures. This paper proposes an end-to-end network for airborne LiDAR poin...

Multi-robot cooperative coverage of key regions considering prior information
DUAN Anna, ZHOU Rui, DI Bin
2023, 49(6): 1479-1486. doi: 10.13700/j.bh.1001-5965.2021.0435
Abstract:

This paper addresses the cooperative continuous monitoring coverage problem of multiple mobile robots for key target areas in complex environments. It is assumed that a number of obstacles and fixed observation points are distributed in the target area, and that the historical measurement data of th...

Two-dimensional imaging algorithm for arcsine-based circular antenna array
YUAN Hang, LUO Ying, CHEN Yijun, SU Linghua
2023, 49(6): 1487-1494. doi: 10.13700/j.bh.1001-5965.2021.0437
Abstract:

Radar imaging technology can capture rich feature information of a target, which provides important basis for target recognition. Vortex electromagnetic wave imaging technology, a widely discussed topic, can capture high-resolution two-dimensional images of relatively stationary targets. To achieve ...

Fast leveling control technology of vehicle platform based on interference compensation
ZHOU Bojun, YU Chuanqiang, TAN Lilong, LIU Zhihao, KE Bing
2023, 49(6): 1495-1503. doi: 10.13700/j.bh.1001-5965.2021.0447
Abstract:

Focusing on the fast leveling requirements of the vehicle-mounted platform under heavy load conditions, the error caused by the deformation of the legs during the leveling process can be accurately calculated by using electric cylinders. To solve the issue of the low leveling accuracy for traditiona...

Borehole image detection of aero-engine based on self-attention semantic segmentation model
CAO Siyan, LIU Junqiang, SONG Gaoteng, ZUO Hongfu
2023, 49(6): 1504-1515. doi: 10.13700/j.bh.1001-5965.2021.0448
Abstract:

Aiming at the problems that small-scale faults tend to be missed and misjudged when detecting borehole images of aero-engines by using traditional methods, a new method based on self-attention semantic segmentation (SA-SS) model is proposed. Based on the overall architecture of classical semantic se...

Experimental study on influence of filter mesh size on radial permeability of sand
TANG Guohang, WANG Naidong, LIU Songtao, JIE Yuxin
2023, 49(6): 1516-1522. doi: 10.13700/j.bh.1001-5965.2021.0451
Abstract:

Based on the self-developed radial penetration tester, a series of seepage failure tests and stable seepage tests on sand were carried out under various filter pore size conditions to study the influence of filter pore size on the radial permeation characteristics of sand. The influences of filter p...

A hybrid method for rare time series classification with FastDTW and SBD
LI Xian, NIU Baoning, LIU Haonan, ZHANG Xukang
2023, 49(6): 1523-1532. doi: 10.13700/j.bh.1001-5965.2021.0471
Abstract:

Rare time series classification (RTSC) is widely used in astronomical observation and other fields. Aiming at the problems of low accuracy and high time cost in the current rare time series classification methods for large-scale data, RTSC-FS is proposed, which takes the short-time scale rare celest...

Modeling and accuracy analysis of GNSS ionospheric error in EU-China based on GA-BP
JIANG Lei, SUN Rui, LIU Zhengwu, XU Cheng, LIANG Dida, HU Dezhen
2023, 49(6): 1533-1542. doi: 10.13700/j.bh.1001-5965.2021.0476
Abstract:

Ionospheric error is one of the main error sources of global navigation satellite system (GNSS). The key to correct ionospheric error is to determine the total electron content (TEC) of ionosphere. Aiming at the problems of low accuracy of empirical model, cumbersome calculation of spherical harmoni...