Results 11 to 20 of about 1,129,195 (294)
Weighted Multi-Band Turbo-Coded FSK for Reliable Underwater Communications
Applied Sciences, 2022 Multi-band communication technology allocates the same data to different frequency bands, improving both performance and propagation efficiency. However, since the performance loss in a particular band affects the entire band, the multi-band structure ...
Hyun-Woo Jeong, Ji-Won Jung
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IEEE Access, 2021 In this paper, linearly and circularly polarized single-layer Substrate Integrated Waveguide (SIW) horn antennas with nearly equal half power beamwidths in principal planes for the 24 GHz ISM band are designed.
Jaroslav Zechmeister +2 more
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Sensors, 2023 The main characteristics of high-efficiency switching-mode solid-state power amplifiers with envelope elimination and restoration (EER) methods depend on all their elements.
Dang Canh Nguyen +2 more
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Radio and the Church - a historical glance [PDF]
, 2014 Radio is a very powerful mass communication medium. In radio broadcasting, one can hear the echo of Christ’s words to his apostles in the missionary discourse: “You received without charge, give without charge…What you hear in whispers, proclaim from the
Sultana, Carl-Mario
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IEEE Access, 2021 A novel electronically reconfigurable fractional-order filter allowing independent electronic frequency tuning and switchless change of the transfer response by a single parameter between standard band-pass, inverting all-pass response and special type ...
Ondrej Domansky +3 more
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Deterministic Communication in Radio Networks [PDF]
, 2018 In this paper we improve the deterministic complexity of two fundamental communication primitives in the classical model of ad-hoc radio networks with unknown topology: broadcasting and wake-up.
Czumaj, Artur, Davies, Peter
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Low-Range Tracking Radio Altimeter with a Phase-Locked Loop
Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. The article proposes a new principle for designing a low-range tracking radio altimeter based on a phase-locked loop (PLL) for frequency-modulated continuous-wave radar (FMCW) systems.Aim.
A. A. Monakov, A. A. Tarasenkov
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SYNTHESIS OF OPTIMAL STEGANOGRAPHIC METHOD MEETING GIVEN CRITERIA
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2015 One of the steganography areas is digital watermarking. In this paper, the technique of comparative analysis of embedding information methods into an image was proposed.
Olesia Vovk, Andrii Astrahantsev
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IEEE Access, 2020 It is common knowledge that wireless power transfer (WPT) systems with multiple transmitters (Txs) and a single receiver (Rx) have robust efficiency against lateral misalignment.
Seon-Jae Jeon, Dong-Wook Seo
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Comparative Analysis of Mathematical Models of Tracking Radio Altimeters
Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. Tracking radio altimeters of low altitudes are widely used in civil aviation. These devises use periodic frequency modulated continuous wave (FMCW) signals, while altitude measurements are based on processing the beat signal processing. For
A. A. Monakov, A. A. Tarasenkov
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