Results 31 to 40 of about 6,749 (208)
, 2011 Bang-bang phase-locked loops (BBPLLs) are inherently nonlinear systems due to the binary phase detector (BPD). While they are typically used for clock and data recovery, the ongoing trend toward digital loop implementations has resulted in several ...
Tertinek, Stefan +3 more
core +1 more source
An improved second order generalized integrators phase locked loop for flexible DC transmission
Energy Reports, 2022 Accurate and fast phase locking is the primary condition for flexible DC transmission to realize reliable control. When the power grid is unbalanced or contains high-order harmonics, the traditional second order generalized integrator (SOGI) itself has ...
Zhiwen Wei +3 more
doaj +1 more source
Phase Locked Loop Test Methodology [PDF]
, 2008 Phase locked loops are incorporated into almost every large-scale mixed signal and digital system on chip (SOC). Various types of PLL architectures exist including fully analogue, fully digital, semi-digital, and software based.
Burbidge, Martin, Richardson, Andrew
core
Analysis and demonstration of a fast tunable fiber-ring-based optical frequency comb generator [PDF]
, 2007 Fiber-ring-based optical frequency comb generators are analyzed to understand their behavior and limitations. A numerical frequency-domain model is described for studying dispersion and other phase mismatch causing effects in the fiber ring cavity, as ...
Ellison, Brian N. +4 more
core +1 more source
Sinusoidal and Relaxation Wide Range Voltage Controlled Oscillators
Communications, 2015 This paper presents a sinusoidal Wien-bridge and square wave wide range voltage controlled oscillators. The square wave oscillator is based on relaxation (Schmitt trigger) topology.
Milan Stork
doaj +1 more source
Fractional-N PLL based FMCW sweep generator for an 80 GHz radar system with 24.5 GHz bandwidth [PDF]
Advances in Radio Science, 2012 A phase-locked loop (PLL) based frequency synthesizer capable of generating highly linear broadband frequency sweeps as signal source of a high resolution 80 GHz FMCW radar system is presented. The system achieves a wide output range of 24.5 GHz starting
T. Jaeschke +3 more
doaj +1 more source
IEEE Access, 2023 The study of stability criterion and interaction analysis for grid-connected inverter under weak grid is of great value. The previous stability criterion combined current loop, phase-locked loop and other loops together, and used the same external ...
Fang Liu +4 more
doaj +1 more source
High Dynamic Optimized Carrier Loop Improvement for Tracking Doppler Rates
Journal of Electrical and Computer Engineering, 2015 Mathematical analysis and optimization of a carrier tracking loop are presented. Due to fast changing of the carrier frequency in some satellite systems, such as Low Earth Orbit (LEO) or Global Positioning System (GPS), or some planes like Unmanned ...
Amirhossein Fereidountabar +2 more
doaj +1 more source
Frequency Locked Loop Based on the Time Nonrecursive Processing [PDF]
Engineering, Technology & Applied Science Research, 2018 This paper describes one new approach to frequency locked loop (FLL), which is based on the time non-recursive processing of input periods. System parameters are defined by the ratio of frequencies. The conditions, under which the described system can have the properties of a FLL, are analyzed.
Perisic, Djurdje M. +2 more
openaire +3 more sources
Distributed Frequency-Locked Loops for Wireless Networks
, 2008 The establishment of a common frequency refer ence in a distributed wireless network is a critical factor in enabling cooperative communication strategies.
N. Varanese +8 more
core +1 more source