Results 1 to 10 of about 23,998 (195)
Entropy, 2023 We examine the effects of imperfect phase estimation of a reference signal on the bit error rate and mutual information over a communication channel influenced by fading and thermal noise.
Goran T. Djordjevic +4 more
doaj +3 more sources
Security bound of continuous-variable measurement-device-independent quantum key distribution with imperfect phase reference calibration [PDF]
Physical Review A, 2019 Phase reference calibration is a necessary procedure in practical continuous-variable measurement-device-independent quantum key distribution (CV-MDI-QKD) for the need of Bell-State Measurement (BSM). However, the phase reference calibration may become imperfect in practical applications.
Peng Huang, Wan-Su Bao, Gui-Hua Zeng
exaly +3 more sources
Performance of qpsk system in the presence of pulse interference and noisy carrier reference signal [PDF]
Serbian Journal of Electrical Engineering, 2003 The aim of this paper is the determining the system performance in detecting the QPSK signal. The error probability is determined when the signal, Gaussian noise, pulse interference and imperfect carrier phase recovery are taken into consideration. Phase
Stefanović Mihajlo +2 more
doaj +1 more source
Entropy, 2021 In most of the realistic measurement device-independent quantum key distribution (MDI-QKD) systems, efficient, real-time feedback controls are required to maintain system stability when facing disturbance from either external environment or imperfect ...
Sihao Zhang +5 more
doaj +1 more source
Applied Sciences, 2021 The Gram–Schmidt orthogonalization procedure (GSOP) and Löwdin symmetric orthogonalization procedure (SYOP) are the two mainstream algorithms for the compensation of phase mismatch in an imperfect optical 90° hybrid.
Xueliang Li +4 more
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Photonics, 2021 Straightness error compensation is a critical process for high-accuracy topography measurement. In this paper, a straightness measurement system was presented based on the principle of fringe interferometry. This system consisted of a moving optical flat
Hang Su +4 more
doaj +1 more source
IET Power Electronics, 2022 In this paper, a novel control strategy for grid‐integrated solar energy transfer system (SETS) is proposed which enhances the grid power quality along with active power injection.
Renuka Varma P C +3 more
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Electronics Letters, 1984 The letter analyses the performance of a two-link binary coherent phase-shift-keying (CPSK) communication system incorporating a direct phase regenerator (DPR) with imperfect carrier reference signals in the regenerator and the receiver. These references are extracted from the received signals by means of squaring loops.
S. Salameh, A.G. Chapman
openaire +1 more source
A perspective on the fundamental quality of GPS radio occultation data [PDF]
Atmospheric Measurement Techniques, 2015 Radio occultation (RO) is a promising source of observation for weather and climate applications. However, the uncertainties arising from imperfect retrieval algorithms may weaken the overall confidence in the data and discourage their use.
T.-K. Wee, Y.-H. Kuo
doaj +1 more source
Semantic and pragmatic values of the Italian imperfetto: Towards a common interpretive procedure
Catalan Journal of Linguistics, 2015 This paper proposes an account of the semantics and pragmatics of the Italian indicative imperfect. This tense is described as deriving all of its uses from an extremely reduced core of semantic features as the point of departure to a series of ...
Laura Baranzini, Claudia Ricci
doaj +1 more source