3D-Subspace-Based Auto-Paired Azimuth Angle, Elevation Angle, and Range Estimation for 24G FMCW Radar with an L-Shaped Array [PDF]
Sensors, 2018 In this paper, a three-dimensional (3D)-subspace-based azimuth angle, elevation angle, and range estimation method with auto-pairing is proposed for frequency-modulated continuous waveform (FMCW) radar with an L-shaped array.
HyungSoo Nam +3 more
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Modeling method for refraction error compensation in ground object detection. [PDF]
PLoS ONEThe refraction error compensation model for ground object detection is established. Firstly, based on a 100-meter interval, the area between the aircraft and the ground objects is stratified, and the Hopfield model of the atmospheric refractive index is ...
Daochun Yu, Zhen Chen
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Инженерные технологии и системы, 2021 Introduction. An increase in crop production from the growing area of both vegetable root crops and all agricultural products results in grows of the load on the machine-technology complex when harvesting.
Aleksey S. Dorokhov +3 more
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Air-Launch Experiment Using Suspended Rail Launcher for Rockoon
Aerospace, 2021 The method of air-launching a rocket using a launcher suspended from a balloon, referred to as a rockoon, can improve the flight performance of small rockets.
Tadayoshi Shoyama +6 more
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Remote Sensing, 2023 In the Multi-Axis Differential Absorption Spectroscopy (MAX-DOAS) trace gas and aerosol profile inversion algorithm, the vertical resolution and the observation information obtained through a series of continuous observations with multiple elevation ...
Xin Tian +10 more
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Dual-Axis Solar Tracking System for Maximum Power Production in PV Systems
Nigerian Journal of Technological Development, 2015 The power developed in a solar energy system depends fundamentally upon the amount of sunlight captured by the photovoltaic modules/arrays. This paper describes a simple electro-mechanical dual axis solar tracking system designed and developed in a study.
Muhd.Ikram Mohd. Rashid +3 more
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Unsteady Aerodynamic Characteristics of Antenna Rotating in Different Elevation Angles
International Journal of Antennas and Propagation, 2021 The aerodynamic characteristics of radar antennas should be considered in computing their wind resistance and designing pedestal servo systems. In this paper, the aerodynamic characteristics of a flat plate antenna with azimuthal rotation are explored ...
Yanqi Zhang, Zhaoming Zhang
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Angle Dependence Analysis Method to Determine SNR Arc Applied to GNSS-MR Sea Level Retrieval [PDF]
Journal of Geodesy and Geoinformation Science, 2021 The Global Navigation Satellite Systems (GNSS) broadcast radio signals are continuously at two or more frequencies in the L-band, and the multipath signals from sea surface recorded by off-the-shelf geodetic receivers have been demonstrated they can be ...
Xiaolei WANG,Xiufeng HE,Qin ZHANG,Mingfeng SONG,Zijin NIU
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Radar multifrequency measurement of elevation angles of low-altitude targets above the sea using the ROOT-MUSIC method [PDF]
Радиофизика и электроника, 2020 Subject and Purpose. The article is devoted to the problem of precision radar measurements of target position data when a low-altitude target is above a rough sea.
Yu.A. Pedenko
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Evaluation of Point Positioning Using the Global Positioning System and the Quasi-Zenith Satellite System as Measured from South Korea [PDF]
Journal of Astronomy and Space Sciences, 2015 The Quasi-Zenith Satellite System (QZSS), a dedicated regional Japanese satellite system currently under development, was designed to complement the performance of the Global Positioning System (GPS).
Byung-Kyu Choi +2 more
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