Results 1 to 10 of about 588,068 (166)
Photonics, 2023 Underwater wireless optical communication (UWOC) plays key role in the underwater wireless sensor networks (UWSNs), which have been widely employed for both scientific and commercial applications.
Kexin Wang +4 more
doaj +1 more source
The Estimation Method of Sensing Parameters Based on OTFS
IEEE Access, 2023 In an integrated sensing and communication (ISAC) system, improving the accuracy of delay and Doppler shift sensing parameter estimation is a critical task that sustains the performance of the communication system. To tackle this task, we introduce a two-
Zhiling Tang +3 more
doaj +1 more source
Doppler Measurement of Modulated Light for High Speed Vehicles
Sensors, 2022 Technical details associated with a novel relative motion sensor system are elaborated in the paper. By utilizing the Doppler effect, the optical sensor system estimates the relative motion rates between the sensor and the moving object equipped with ...
Kookjin Sung, Manoranjan Majji
doaj +1 more source
Electromagnetic Signal Modulation by Chromatic Dispersion in Phase Gradient Metasurface
IEEE Access, 2022 Chromatic dispersion in phase gradient metasurface and its impact on the scattered electromagnetic signals are studied in this paper. Due to its intrinsic material dispersion and special spatial arrangement of unit cells, phase gradient metasurfaces ...
Yueyu Meng +6 more
doaj +1 more source
Performance Evaluation of Demodulation Methods: a Combinatorial Approach [PDF]
Discrete Mathematics & Theoretical Computer Science, 2001 This paper provides a combinatorial approach for analyzing the performance of demodulation methods used in GSM. We also show how to obtain combinatorially a nice specialization of an important performance evaluation formula, using its connection with a ...
Daniel Krob, Ekaterina A. Vassilieva
doaj +1 more source
Sensors, 2023 When forming the radar situation of a terrain, in order to increase its information content and to extract useful information, multi-position spatially distributed systems for integrating multi-angle radar data established by small-sized UAV-based ...
Vadim A. Nenashev, Sergey A. Nenashev
doaj +1 more source
Applied Sciences, 2022 Magnetic anomaly signal detection (MASD) is a passive method for the detection of visually obscured ferromagnetic objects. This paper proposes a new method for MASD based on the ambient field of power frequency magnetic (power transmission line system ...
Bin Tian +5 more
doaj +1 more source
Signals Intelligence System with Software-Defined Radio
Applied Sciences, 2023 In this paper, we present the implementation of a system that identifies the modulation of complex radio signals. This is realized using an artificial intelligence model developed, trained, and integrated with Microsoft Azure cloud.
Florin Radu +5 more
doaj +1 more source
Design and Performance Analysis of Navigation Signal Based on OFDM
Applied Sciences, 2022 This paper proposes a new navigation modulation based on orthogonal frequency division multiplexing (OFDM). We derived the autocorrelation function and power spectral density of the OFDM modulation.
Xinqi Wang +6 more
doaj +1 more source
Signal Automatic Modulation Classification and Recognition in View of Deep Learning
IEEE Access, 2023 With the advancement of 5G technology, wireless communication resources such as channels and spectrum become scarce. This necessitates ensuring the efficiency and security of signal modulation and demodulation, which imposes higher requirements for ...
Tianpei Xu, Ying Ma
doaj +1 more source