An Extremely Large Ka-Band Reflectarray Antenna for Interferometric Synthetic Aperture Radar: Enabling Next-Generation Satellite Remote Sensing

Hodges, Richard E.; Chen, Jacqueline C.; Radway, Matthew R.; Amaro, Luis R.; Khayatian, B.; Munger, Jason

doi:10.1109/map.2020.2976319

Cited by 19 publications

(11 citation statements)

References 11 publications

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“…So it is beneficial to decode the information encoded in the phase of the initial state of an arbitrary channel in both scenarios in the initial times. These valuable results can be effective in improving quantum processes based on quantum remote sensing such as navigation [69], radar [70,71], LiDAR [72,73], imaging [74,75], antenna design [76,77], and information security [78,79].…”

Section: Discussionmentioning

confidence: 99%

Quantum teleportation and phase quantum estimation in a two-qubit state influenced by dipole and symmetric cross interactions

Hosseiny

2023

Phys. Scr.

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In this paper, we address the problem of quantum teleportation in single and two-qubit scenarios based on the Heisenberg XYZ two-qubit chain model under the influence of atomic dipole and Kaplan–Shekhtman–Entin–Wohlman–Aharony (KSEWA) interactions. Using the concepts of fidelity threshold and average fidelity in classical and quantum, we reveal the effectiveness of the current channel to remain in the quantum limits. In addition, we investigate the quantum estimation of the encoded phase in single and two-qubit scenarios at the teleportation destination. By using different variables of the system, the average fidelity of the quantum teleportation and the quantum estimation of the encoded phase in one and two teleported qubit(s) can be improved.

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Section: Discussionmentioning

confidence: 99%

Quantum teleportation and phase quantum estimation in a two-qubit state influenced by dipole and symmetric cross interactions

Hosseiny

2023

Phys. Scr.

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“…In this study, the value of R M equaled 56.3 m, which is sufficient in an indoor environment. The theoretical range resolution (R res ) of the proposed FMCW radar system (BW: 110 MHz) equals 1.36 m, as described in (7). It can be improved by using the broad bandwidth.…”

Section: Indoor Fmcw Radar Measurementmentioning

confidence: 96%

“…Especially, radar technology is widely used in the military and internet of things (IoT) applications because it facilitates the development of remote-sensing equipment [1][2][3][4][5][6]. Military radars, such as those used in aerial defense, battlefield, and traffic-control operations, comprise large active phased-array systems to realize high-precision long-range detection (exceeding 100 km) and tracking [7][8][9]. Meanwhile, radars used in IoT applications are considerably smaller and lighter than their military counterparts because they are required to detect objects within an approximately 300 m range [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection

Jeong

Kim

2021

Electronics

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This paper presents an educational low-cost C-band frequency-modulated continuous wave (FMCW) radar system for use in indoor through-wall metal detection. Indoor remote-sensing applications, such as through-wall detection and positioning, are essential for the comprehensive realization of the internet of things or super-connected societies. The proposed system comprises a two-stage radio-frequency power amplifier, a voltage-controlled oscillator, circuits for frequency modulation and system synchronization, a mixer, a 3-dB power divider, a low-noise amplifier, and two cylindrical horn antennas (Tx/Rx antennas). The antenna yields gain values in the 6.8~7.8 range when operating in the 5.83~5.94 GHz frequency band. The backscattered Tx signal is sampled at 4.5 kHz using the Arduino UNO analog-to-digital converter. Thereafter, the sampled signal is transferred to the MATLAB platform and analyzed using a customized FMCW radar algorithm. The proposed system is built using commercial off-the-shelf components, and it can detect targets within a 56.3 m radius in indoor environments. In this study, the system could successfully detect targets through a 4 cm-thick ply board with a measurement accuracy of less than 10 cm.

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“…KaRIn is a synthetic aperture radar interferometer operating at Ka-band (35.75 GHz center frequency). KaRIn advances the state-of-the-art in several aspects, including: the deployment of the largest reflectarray antenna ever flown in space [20], a high-power amplifier with unprecedented stability requirements [21], a large deployable 10 m boom with stringent alignment and thermoelastic deformation requirements, and the first ever on-board processor that, ingesting massive amounts of data, produces radar interferograms on board a spacecraft.…”

Section: A Karin Radar Overviewmentioning

confidence: 99%

KaRIn, the Ka-Band Radar Interferometer of the SWOT Mission: Design and in-Flight Performance

Peral,

Esteban-Fernández,

Rodríguez

et al. 2024

IEEE Trans. Geosci. Remote Sensing

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The Surface Water and Ocean Topography (SWOT) mission was recommended by the 2007 National Research Council Decadal Survey to expand on previous altimetry missions like TOPEX/Poseidon. Utilizing wide-swath altimetry technology, SWOT aims to achieve complete coverage of the world's oceans and freshwater bodies through high-resolution elevation measurements. SWOT received approval for implementation in 2016, it was ultimately launched in December 2022, and it is currently delivering preliminary data to the public. The primary instrument in SWOT is the Ka-band Radar Interferometer (KaRIn) which utilizes JPL-developed radar interferometry technology to measure ocean and surface water levels with unprecedented accuracy.This paper focuses on the challenges in designing, testing, and finally commissioning in flight a complex instrument like KaRIn. We also present preliminary flight performance and compare it with ground measurements and simulations. Our analysis indicates that KaRIn meets or exceeds all its requirements, but it has also revealed several interesting and unexpected observations, offering just a glimpse of future scientific discoveries that KaRIn will enable.

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An Extremely Large Ka-Band Reflectarray Antenna for Interferometric Synthetic Aperture Radar: Enabling Next-Generation Satellite Remote Sensing

Cited by 19 publications

References 11 publications

Quantum teleportation and phase quantum estimation in a two-qubit state influenced by dipole and symmetric cross interactions

Quantum teleportation and phase quantum estimation in a two-qubit state influenced by dipole and symmetric cross interactions

Educational Low-Cost C-Band FMCW Radar System Comprising Commercial Off-the-Shelf Components for Indoor Through-Wall Object Detection

KaRIn, the Ka-Band Radar Interferometer of the SWOT Mission: Design and in-Flight Performance

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