Analysis of phase-locked loop acquisition - A quasistationary approach.
Acquisition behavior of phase-locked loops analyzed by treating loop as first-order loop with slowly varying dependent bias
LOOP↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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A comparison of binary delay-lock tracking-loop implementations.
Binary delay-lock tracking-loop performance for various RF implementations
PHASE DETECTOR↗
A method for calculating phase-locked loop performance near threshold.
Near-threshold behavior of phase-locked devices, noting phase error processes
PHASE LOCK↗
Some analytical and experimental phase-locked loop results for low signal-to-noise ratios.
Nonlinear behavior of second-order phase locked loop in presence of noise, discussing probability distribution of phase error, statistical properties of loop behavior, etc
PHASE LOCK↗
Threshold Study of Phase Lock Loop Systems Interim Technical Report
Threshold studies of phase lock loop systems - effect of phase comparator on overall performance and threshold phenomena
COMPARATOR↗
Digital communication and tracking - Limit-cycles in passive-filter phase-locked loops
Limit cycles in passive filter phase locked loops of digital communication and tracking systems
TRACKING FILTER↗
A phase lock loop system with a modulo 2n pi phase detector
Phase lock loop system with modulo 2n pi phase detector
MODULUS↗
Communication systems development - Cycle slipping in phase-locked loops
Random walk model for determining cycle slipping in phase locked loops
PHASE LOCK↗
A model distribution for the phase error in second-order phase-locked loops.
Model distribution for phase error in second-order phase locked loop used to complement analytical model in signal to noise region
PHASE ERROR↗
Effects of CW interference on narrow-band second-order phase-lock loops.
CW interference and white noise effect on second order phase lock loop, using reciprocal of loop mean square phase error as index of performance
PHASE LOCK↗
Intermodulation distortion of a phase locked loop demodulator.
Intermodulation distortion of phase-locked loop demodulator as influenced by system parameters
PHASE LOCK DEMODULATOR↗
Cycle slipping in phase-locked loops.
First slip time of phase locked loop of arbitrary order shown as solution of first order linear differential equation
DIFFERENTIAL EQUATION↗
A method for calculating phase-locked loop performance near threshold.
Near-threshold behavior of phase-locked devices, noting phase error processes
PHASE ERROR↗
Design and Implementation of a TMS320C25-Based Hybrid Digital Phase-Locked Loop --An Application to Transponder Receiver Breadboard
The experimental study of a Phase-Locked Loop (PLL) with a digital loop filter is presented in this paper.
Phase-locked loop pll digital loop filter digital ↗
Multi-Wavelength Mode-Locked Laser Arrays for WDM Applications
Multi-wavelength arrays of colliding pulse mode-locked (CPM) lasers have been demonstrated for wavelength division multiplexing (WDM) applications. The need for increased bandwidth is driving the development of both increased speed in time division multiplexing (TDM) and more channels in WDM for fiber optic communication systems.
division↗
Launch Lock Mechanism for Resource Prospector Rover
The Resource Prospector Rover is being designed to carry the RESOLVE (Regolith Environment Science, and Oxygen Lunar Volatile Extraction) payload on a mission to the Moon to prospect for water ice. This is a joint project between KSC Swamp Works UB-R1 and JSC. JSC is building the Resource Prospector 2015 (RP15) rover and KSC designed and fabricated a Launch-Lock (LL) hold down mechanism for the rover. The LL mechanism will attach and support the rover on a Lunar Lander during launch and transit to the moon, then release the RP15 rover after touchdown on the lunar surface. This report presents the design and development of the LL mechanism and its unique features which make it suitable for this lunar exploration mission. An EDU (engineering development unit) prototype of the LL has been built and tested at KSC which is the subject of this paper.
Lunar Lander↗
Flexible Loop Filter Design for Spacecraft Phase-Locked Receivers
A flexible loop filter design for spacecraft phase-locked receivers is proposed.
deep↗
Phase Locking of a Second Harmonic Gyrotron Using a Quasi-Optical Circulator
The benefits of high power millimeter wave radiation for use in communication and radar systems are well known. Recently a frequency near 35 GHz was allotted for use in deep space communications, including bands for spacecraft uplink and downlink. Described is the phase locking of a high power pulsed gyrotron oscillator through the use of a quasi-optical circulator (using a second harmonic gyrotron).
35↗