Results 11 to 20 of about 162,262 (264)
Jamming Simulation Analysis of LFM-Chebyshev Chaotic Bi-Phase Code Signal [PDF]
Hangkong bingqi, 2022 LFM-Chebyshev chaotic bi-phase code signal is a mixed signal which uses Chebyshev chaotic sequence as inter pulse two-phase coding and linear frequency modulation processing in the pulse. It has strong concealment and anti-jamming ability.
Song Quan, Zhang Fan, Xu Hua
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Frontiers in Energy Research, 2022 The impedance-based criterion has turned out to be a very effective tool for the stability analysis of the dual active bridge (DAB) converter with its input LC filter.
Fan Feng +4 more
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Energy Reports, 2023 The dual active bridge (DAB) DC–DC converter is typical in DC transformers to realize the voltage transformation and power transmission, which is determined by modulation. However, in traditional phase shift modulation strategies, the zero-voltage-switch
Yiting Xiao, Yuanpeng Guan, Li Qin
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IEEE Access, 2023 The neutral-point-clamped (NPC) dual-active-bridge (DAB) converter with hybrid semiconductors (Si and SiC devices) is a promising topology for high-power energy storage systems.
Jiaxin Dong +5 more
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Direct Antenna Modulation for High-Order Phase Shift Keying [PDF]
IEEE Transactions on Antennas and Propagation, 2020 An antenna capable of directly phase modulating a radio frequency carrier is discussed, designed, and measured as both an antenna and a modulator. Access point densification for the Internet of Things will be expensive in part due to the cost and inefficiency of amplifying waveforms with large peak-to-average power ratios for downlink transmission ...
Henthorn, S., Ford, K., O'Farrell, T.
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Sensors, 2015 A time difference method to conveniently measure the phase shift between output wavelength and intensity of distributed feedback laser diodes (DFB-LDs) was proposed.
Yongning Liu +5 more
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PHASE SHIFT INFLUENCE RESEARCH OF THE REFERENCE OSCILLATOR SIGNAL ON THE OUTPUT SIGNAL IN HOMODYNE DEMODULATION SCHEME [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2015 Subject of Research. Important feature of homodyne demodulation method based on the arctangent function approach is the phase shift between the reference oscillator signal and the interference signal.
A. V. Volkov +4 more
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PERFORMANCE ANALYSIS OF MIMO-SPACE TIME BLOCK CODING WITH DIFFERENT MODULATION TECHNIQUES [PDF]
ICTACT Journal on Communication Technology, 2012 MIMO Diversity is the technique which takes the advantage of multipath and mitigates the effect of fading and increases signal strength. Space Time Block code (STBC) is used in Multiple Input Multiple Output (MIMO) system to improve the performance by ...
Shubhangi Chaudhary, A.J. Patil
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Ultrasonic Modulation of Coherent Light in Raman–Nath Diffraction
IEEE Photonics Journal, 2018 This paper analyzes the ultrasonic modulation of coherent light in Raman–Nath acousto-optic diffraction. We find that the frequency shifts of the diffracted light cause the periodic variation of the ultrasound-modulated light intensity with time ...
Weng Cuncheng, He Youwu
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Energy Reports, 2020 In order to reduce the conduction losses of the Dual-Active-Bridge (DAB) converter, this paper proposes an optimized modulation scheme based on deep reinforcement learning (DRL).
Yuanhong Tang +6 more
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