IEEE Journal on Miniaturization for Air and Space Systems最新文献_第2页

Improved Dynamic Surface Control for Uncertain Nonlinear Systems With Application to Fighter Jet System 改进不确定非线性系统的动态表面控制并应用于战斗机系统

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-08-29 DOI: 10.1109/JMASS.2024.3451477

Li Zhao;Chuan Qin;Qiuni Li;Chongchong Han;Jialong Jian;Yuanfei Liu

{"title":"Improved Dynamic Surface Control for Uncertain Nonlinear Systems With Application to Fighter Jet System","authors":"Li Zhao;Chuan Qin;Qiuni Li;Chongchong Han;Jialong Jian;Yuanfei Liu","doi":"10.1109/JMASS.2024.3451477","DOIUrl":"https://doi.org/10.1109/JMASS.2024.3451477","url":null,"abstract":"An improved dynamic surface control (IDSC) method is proposed for a class of strict-feedback nonlinear systems with internal uncertainties and external disturbances. First, compared with the typical first-order sliding-mode differentiator, this article presents an improved method to obtain the first-order differential approximation of the virtual control signals, which tackles the obstacle of “explosion of complexity.” Second, to eliminate the effect of filtering errors that exist in traditional dynamic surface control method, in this article, the tracking errors are directly constructed using the virtual control signal. Third, composite disturbances were estimated and compensated by designing a novel disturbance observer, which eliminates the limitations that the disturbance terms must be differentiable or even slow tensors. Finally, to illustrate that the proposed method has a great ability to suppress fast time-varying and nondifferentiable disturbances, the simulation results of a numerical example and a practical example of a modern advanced fighter jet system were presented.","PeriodicalId":100624,"journal":{"name":"IEEE Journal on Miniaturization for Air and Space Systems","volume":"5 4","pages":"246-253"},"PeriodicalIF":0.0,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Satellites for Auroral Tomography in Space (SATIS) Project: Tomographic Reconstruction of the Auroral Emissions From Space 空间极光层析成像卫星（SATIS）项目：空间极光发射层析成像重构

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-08-23 DOI: 10.1109/JMASS.2024.3449071

Elisa Robert;Mathieu Barthelemy;Thierry Sequies

{"title":"The Satellites for Auroral Tomography in Space (SATIS) Project: Tomographic Reconstruction of the Auroral Emissions From Space","authors":"Elisa Robert;Mathieu Barthelemy;Thierry Sequies","doi":"10.1109/JMASS.2024.3449071","DOIUrl":"https://doi.org/10.1109/JMASS.2024.3449071","url":null,"abstract":"The satellites for auroral tomography in space (SATIS) project is a mission concept that proposes to perform auroral tomography from space using imagers placed on a constellation of satellites. Auroral tomography is particularly interesting for reconstructing the flux of particles precipitating into the atmosphere. The advantage of space observations is that they avoid cloud cover problems, allowing larger set of data and with a dedicated ground-based infrastructure ensure quasi-continuous monitoring. However, the main difficulty of this mission is to synchronize orbits and attitudes of the satellites in order to observe the same volume of emission at the same time and from different perspectives. The attitude and determination control system will thus have to be very precise and stable. The data volume is also an issue especially in a monitoring point of view. Furthermore, atmospheric drag will have to be correctly considered to limit orbit disturbances and keep satellites synchronized. We present here the preliminary study of this project and the initial requirements identified to be able to perform this mission concept.","PeriodicalId":100624,"journal":{"name":"IEEE Journal on Miniaturization for Air and Space Systems","volume":"5 4","pages":"237-245"},"PeriodicalIF":0.0,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Latency Optimization in UAV-Assisted Mobile Edge Computing Empowered by Caching Mechanisms 利用缓存机制优化无人机辅助移动边缘计算中的延迟

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-08-23 DOI: 10.1109/JMASS.2024.3448433

Heng Zhang;Zhemin Sun;Chaoqun Yang;Xianghui Cao

引用次数: 0

The Journal of Miniaturized Air and Space Systems 微型化航空航天系统杂志

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-08-22 DOI: 10.1109/JMASS.2024.3440776

引用次数: 0

Beam-Switching Digital Metasurface Reflectarray Antenna With Extreme Offset Illumination for Satellite Communications 用于卫星通信的具有极端偏移照明的波束切换数字元面反射阵列天线

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-08-21 DOI: 10.1109/JMASS.2024.3447457

Gazali Bashir;Amit K. Singh;Ankit Dubey

{"title":"Beam-Switching Digital Metasurface Reflectarray Antenna With Extreme Offset Illumination for Satellite Communications","authors":"Gazali Bashir;Amit K. Singh;Ankit Dubey","doi":"10.1109/JMASS.2024.3447457","DOIUrl":"https://doi.org/10.1109/JMASS.2024.3447457","url":null,"abstract":"This article introduces a compact wideband beam-switching digital metasurface reflector (MSR) array antenna featuring extreme offset illumination for satellite communications in the Ka band. The MSR comprises phase-modulating subwave length unit cell elements. The unit cell consists of a cross dipole loaded with curved stubs. The arrangement of the stubs across the dipole modulates the phase characteristics of the incident electric field. An MSR composed of \u0000<inline-formula> <tex-math>$15times 15$ </tex-math></inline-formula>\u0000 metabits is designed, fabricated, and validated. The metasurface reflectarray is excited by three antipodal Vivaldi antennas with an extreme offset configuration, which effectively mitigates the blockage due to the feeding source. The measured results show highly directive, stable beam-switching characteristics over a broad spectrum ranging from 26 to 32 GHz. A beam steering range of −35° to +35° is obtained along the azimuthal plane, with a maximum measured peak gain of 19.1 dBi at 28.5 GHz and maximum beam-switching loss of 1.5 dBi. A maximum measured aperture efficiency of 35% is obtained, and a 3-dB gain bandwidth of 20.7%.","PeriodicalId":100624,"journal":{"name":"IEEE Journal on Miniaturization for Air and Space Systems","volume":"5 4","pages":"221-227"},"PeriodicalIF":0.0,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compact Wide Upper Stopband Suppression Filtering Antenna for Aerospace Applications 用于航空航天应用的紧凑型宽上止带抑制滤波天线

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-08-16 DOI: 10.1109/JMASS.2024.3445257

Jiawang Li;Yitong Shi;Lei Xiang

{"title":"Compact Wide Upper Stopband Suppression Filtering Antenna for Aerospace Applications","authors":"Jiawang Li;Yitong Shi;Lei Xiang","doi":"10.1109/JMASS.2024.3445257","DOIUrl":"https://doi.org/10.1109/JMASS.2024.3445257","url":null,"abstract":"This article presents a novel wide stopband suppression millimeter wave (mmWave) filtering antenna (filtenna). A three-order resonance substrate integrated waveguide (SIW) topology structure, including a driven patch and a radiation patch, is applied to enhance the bandwidth. In contrast to traditional stacked patch antennas, this design modifies the driven and radiation patches in different shapes. The full mode SIW (FMSIW) cavity is adopted due to its high-quality (high-Q) factor, which effectively improves the antenna’s selectivity. Besides, the generation of main upper band radiation nulls is attributed to the designed FMSIW cavity. Four parasitic vertical dumbbell structures are added to increase the stopband bandwidth. A pair of U-shape slots are etched on the driven patch to generate a lower band radiation null. A polycyclic structure rather than a single radiation patch can generate another lower band radiation null. To reduce the effect of the antenna element on the ground area and increase the isolation between elements, a via array is added around it, which also slightly enhances the sideband suppression of the antenna in the upper sideband. For verification, a filtenna working for the N258 band (24.25–27.5 GHz) is designed, fabricated, and measured. The measured results show that a measured −10-dB impedance bandwidth covering from 24.25 to 29.06 GHz is successfully implemented. The average realized gain can reach 5 dBi, and the lower and upper band suppression can reach more than 30 and 19.1 dB, respectively. Furthermore, the upper stopband achieves wide suppression from 30 to 50 GHz. Overall, this filtenna is a competitive candidate for 5G mmWave applications.","PeriodicalId":100624,"journal":{"name":"IEEE Journal on Miniaturization for Air and Space Systems","volume":"5 4","pages":"211-220"},"PeriodicalIF":0.0,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142679258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flight Conflict Resolution Simulation Study Based on the Improved Fruit Fly Optimization Algorithm 基于改进果蝇优化算法的飞行冲突解决模拟研究

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-07-17 DOI: 10.1109/JMASS.2024.3429514

Yulong Sun;Guoshen Ding;Yandong Zhao;Renchi Zhang;Wenjun Wang

{"title":"Flight Conflict Resolution Simulation Study Based on the Improved Fruit Fly Optimization Algorithm","authors":"Yulong Sun;Guoshen Ding;Yandong Zhao;Renchi Zhang;Wenjun Wang","doi":"10.1109/JMASS.2024.3429514","DOIUrl":"https://doi.org/10.1109/JMASS.2024.3429514","url":null,"abstract":"Due to the increasingly widespread application of unmanned aerial vehicle (UAV), the study of flight conflict resolution can effectively avoid the collision of different UAVs. First, describe flight conflict resolution as an optimization problem. Second, the improved fruit fly optimization algorithm (IFOA) is proposed. The smell concentration judgment is equal to the coordinate instead of the reciprocal of the distance in order to make the variable accessible to be negative and occur with equal probability in the defined domain. Next, introduce the limited number of searches of the Artificial Bee Colony Algorithm to avoid falling into the local optimum. Meanwhile, generate a direction and distance of the fruit fly individual through roulette. Finally, the effectiveness of the algorithm is demonstrated by computational experiments on 18 benchmark functions and the simulation of the flight conflict resolution of two and four UAVs. The results show that compared with the standard fruit fly optimization algorithm, the IFOA has superior global convergence ability and effectively reduces the delay distance, which has important potential in flight conflict resolution.","PeriodicalId":100624,"journal":{"name":"IEEE Journal on Miniaturization for Air and Space Systems","volume":"5 3","pages":"200-209"},"PeriodicalIF":0.0,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142041376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Active V-Dipole Antenna on UAS for Receiving NOAA Polar Satellite Imagery 在无人机系统上设计有源 V-Dipole 天线以接收 NOAA 极地卫星图像

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-04-16 DOI: 10.1109/JMASS.2024.3389097

Curtis Manore;Alan J. Fenn;Hanumant Singh

引用次数: 0

Wide-Band Wide-Angle Beamsteerable Meta-Lens Antenna for Terrestrial/Nonterrestrial 5G Communication Systems 用于地面/非地面 5G 通信系统的宽带宽角度可转向元透镜天线

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-04-04 DOI: 10.1109/JMASS.2024.3385699

Suchitra Tiwari;Amit K. Singh;Ankit Dubey

{"title":"Wide-Band Wide-Angle Beamsteerable Meta-Lens Antenna for Terrestrial/Nonterrestrial 5G Communication Systems","authors":"Suchitra Tiwari;Amit K. Singh;Ankit Dubey","doi":"10.1109/JMASS.2024.3385699","DOIUrl":"https://doi.org/10.1109/JMASS.2024.3385699","url":null,"abstract":"A highly efficient low-profile binary metasurface lens (BMSL) antenna is designed and developed to achieve wide-angle beamsteering at the millimeter-wave band of fifth-generation (5G) aerospace communication systems. First, a subwavelength-sized phase-shift element (meta-element) with a crossed-arrow geometry having two-line symmetry structure is designed possessing special characteristics of insensitivity to polarization as well as the oblique angle of incidence, wide-band transmission, and compactness. Further, 1-bit quantized radial phase-graded metasurface lens is designed by arranging the proposed elements in \u0000<inline-formula> <tex-math>$19times19$ </tex-math></inline-formula>\u0000 array resulting in an aperture area of \u0000<inline-formula> <tex-math>$33.6~lambda _{0}^{2}$ </tex-math></inline-formula>\u0000. To realize beamsteering along 0°, ±15°, ±30°, ±45°, and ±60°, BMSLs with distinct phase-quantization are designed and spatially fed through antipodal Vivaldi antenna (AVA) which acts as a primary feed source positioned at optimum focal point thereby radiating highly concentrated beams in the intended directions. The complete BMSL antenna system is then fabricated and characterized in an ideal free-space environment achieving a measured peak gain of up to 20.8 dBi in broadside direction and 1.6 dB of maximum scan loss for ±60° steering. The proposed BMSL antenna achieves an aperture efficiency of 28.4 % at 28 GHz and a −3-dB gain bandwidth of 16.5 %. Thus, the proposed BMSL antenna is a promising contender for facilitating terrestrial (air) as well as nonterrestrial (space) communication links between low-Earth orbit satellites and 5G base stations.","PeriodicalId":100624,"journal":{"name":"IEEE Journal on Miniaturization for Air and Space Systems","volume":"5 2","pages":"117-124"},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141091131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multibaseline Phase Unwrapping With a Refined Parametric Pure Integer Programming for Noise Suppression 利用精炼参数纯整数编程进行多基线相位解包以抑制噪声

IEEE Journal on Miniaturization for Air and Space Systems Pub Date : 2024-04-04 DOI: 10.1109/JMASS.2024.3385026

Jiawei Yue;Qihuan Huang;Hui Liu;Ziqi He;Hanwen Zhang

引用次数: 0