Results 21 to 30 of about 1,859,997 (304)
Tutorial on dynamic analysis of the Costas loop [PDF]
Annual Reviews in Control, 2020 Abstract Costas loop is a classical phase-locked loop (PLL) based circuit for carrier recovery and signal demodulation. The PLL is an automatic control system that adjusts the phase of a local signal to match the phase of the input reference signal. This tutorial is devoted to the dynamic analysis of the Costas loop.
R.E. Best +4 more
openaire +2 more sources
Scintillation Effects in S-Band Telemetry Link of INPE’s Earth Station in Cuiaba-Brazil [PDF]
Radioengineering, 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
300‐GHz integrated heterodyne receiver with carrier lock‐in Costas loop
Electronics Letters, 2020 A carrier signal lock-in experiment using a 300-GHz integrated heterodyne circuit is presented. The circuit contains a single voltage-controlled oscillator with a single set of quadrature mixers that are fabricated using 250-nm InP double hetero-junction
C. Yi, S. Choi, Myung-Ki Kim
semanticscholar +1 more source
IEEE 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
IEEE 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
Hold-in, pull-in, and lock-in ranges of PLL circuits: rigorous mathematical definitions and limitations of classical theory [PDF]
, 2015 The terms hold-in, pull-in (capture), and lock-in ranges are widely used by engineers for the concepts of frequency deviation ranges within which PLL-based circuits can achieve lock under various additional conditions. Usually only non-strict definitions
Kuznetsov, N. V. +3 more
core +2 more sources
International 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 +1 more source
Vojnotehnički Glasnik, 2015 In GPS receivers, navigation bit allocation is performed throughout the process of signal tracking and detection. In the process of signal tracking, the locally generated signal must be synchronized with the received signal. The Costas phase-locked loop (
Vlada S. Sokolović +2 more
doaj +1 more source
GPS Carrier Tracking Loop Performance in the presence of Ionospheric Scintillations [PDF]
, 2005 The performance of several GPS carrier tracking loops is evaluated using wideband GPS data recorded during strong ionospheric scintillations. The aim of this study is to determine the loop structures and parameters that enable good phase tracking ...
Humphreys, Todd E. +2 more
core +1 more source
, 2015 Rigorous nonlinear analysis of the physical model of Costas loop --- a classic phase-locked loop (PLL) based circuit for carrier recovery, is a challenging task.
Best, R. E. +5 more
core +1 more source