Results 1 to 10 of about 1,202 (266)

FPGA-Based Implementation of All-Digital QPSK Carrier Recovery Loop Combining Costas Loop and Maximum Likelihood Frequency Estimator [PDF]

open access: yesInternational Journal of Reconfigurable Computing, 2014
This paper presents an efficient all digital carrier recovery loop (ADCRL) for quadrature phase shift keying (QPSK). The ADCRL combines classic closed-loop carrier recovery circuit, all digital Costas loop (ADCOL), with frequency feedward loop, maximum ...
Kaiyu Wang   +4 more
doaj   +2 more sources

Analysis and performance of coded symbol recovery loop using oversampling

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
In this work, we propose a closed-loop analog system to detect the source information of a binary data stream coded by a flexible finite automaton. We initially consider the dual sideband suppressed-carrier modulation of a base band binary amplitude ...
Giuseppe Visalli
doaj   +2 more sources

Perancangan dan Realisasi Perangkat Keras Demodulator BPSK dengan Costas Loop

open access: yesTechne, 2015
Pada tulisan ini akan dirancang dan direalisasikan suatu perangkat demodulator data berbasis BPSK (Binary Phase Shift Keying) menggunakan metode Costas Loop.
Budihardja Murtianta   +2 more
doaj   +1 more source

Drivers’ Warning Application Through Personalized DSSS-CDMA Data Transmission by Using the FM Radio Broadcasting Infrastructure

open access: yesIEEE Access, 2023
In this paper, a new drivers’ warning application through personalized Direct-Sequence Spread Spectrum Code-Division Multiple Access (DSSS-CDMA) transmissions, performed using the FM radio broadcasting infrastructure is presented.
Radu Gabriel Bozomitu, Florin Doru Hutu
doaj   +1 more source

Sistem Modulator dan Demodulator BPSK dengan Costas Loop

open access: yesTechne, 2015
Pada tulisan ini akan dibahas suatu sistem transmisi data berbasis BPSK (Binary Phase Shift Keying) menggunakan Costas Loop pada demodulatornya. Pada prinsipnya Costas Loop adalah bentuk khusus dari PLL yang difungsikan untuk melakukan demodulasi sinyal ...
Budihardja Murtianta
doaj   +1 more source

Perancangan Sistem Modulator Binary Phase Shift Keying

open access: yesTechne, 2016
Sistem yang dibangun adalah sebuah modul sistem modulator BPSK (Binary Phase Shift Keying). Perangkat yang dibahas adalah modulator BPSK dengan frekuensi 10kHz-48kHz dan untuk transmisi secara nirkabel ditambahkan pemancar FM yang akan mentranslasikan ...
Deddy Susilo   +2 more
doaj   +1 more source

Demodulation of Three-Phase AC Power Transients in the Presence of Harmonic Distortion

open access: yesEnergies, 2020
Load switches in power systems may cause oscillations in active and reactive power flow. Such oscillations can be damped by synthetic inertia provided by smart inverters providing power from DC sources such as photovoltaic or battery storage. However, AC
Benjamin T. Gwynn, Raymond de Callafon
doaj   +1 more source

Scintillation Effects in S-Band Telemetry Link of INPE’s Earth Station in Cuiaba-Brazil [PDF]

open access: yesRadioengineering, 2021
One of the main earth stations that INPE uses to track and control its satellites is located in the city of Cuiaba (15.33°S, 56.46°W, dip latitude, 6.1°S), between the magnetic equator and the peak of the equatorial anomaly.
A. M. P. de Lucena   +2 more
doaj  

Design of a Phase Sensor Applied in the Optical Phase-Locked Loop Based on a High-Speed Coherent Laser Communication System

open access: yesIEEE Access, 2018
The background of our research is, designing a precise phase detection sensor for high-speed coherent homodyne systems, and combining it with optical phase-locked loops (OPLLs) to achieve coherent demodulation and carrier recovery.
Yang Liu   +7 more
doaj   +1 more source

Design of Galvanic Coupling Intra-Body Communication Transceiver Using Direct Sequence Spread Spectrum Technology

open access: yesIEEE Access, 2020
Intra-body communication (IBC) uses the human body as the transmission medium for electrical signals, and it features the following advantages: low power consumption, strong anti-interference ability, high data security, and broad application scenarios ...
W. K. Chen   +7 more
doaj   +1 more source

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