Quantized second order frequency locked loop.
Frequency locked loop /FLL/ to optimize loop filter and quantization of amplitude channel
Clarke, K. K.↗
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On optimum quantization.
Quantization error reduction for stochastic signals processing problems
Wood, R. C.↗
A technique for correcting coefficient quantization errors in hybrid control systems.
Taylor series expansion used in correcting quantized digital coefficient errors in hybrid feedback control system
Chenoweth, D. L.↗
A technique for optimizing the selection of quantized coefficients in digital controllers.
Coefficient quantization in digital continuous time process controllers, applying results to nominal transfer function approximation
Chenoweth, D. L.↗
On the correction of coefficient quantization errors in hybrid control systems.
Correction coefficients for time response of hybrid control systems with digital feedback elements containing quantized coefficients
Chenoweth, D. L.↗
Signal amplitude quantization in digital filters
Digital filters response errors due to signal amplitude quantization, resulting from analog-to- digital conversion and arithmetic operations
Carroll, C. C.↗
On the correction of coefficient quantization errors in hybrid control systems
Time response deviation correction in hybrid computer control systems with digital feedback elements containing quantized coefficients
Chenoweth, D. L.↗
Maximum errors from quantization in multirate digital control systems
Upper bound on system errors caused by quantization in multirate digital control system
Johnson, J. C.↗
Nonlinear recursive estimation for systems with quantized data
State estimation for nonlinear discrete time systems with quantized measurements, obtaining recursive algorithm through boundary value problem linearization
Clements, K. A.↗
Maximum errors from quantization in multirate digital control systems
Upper bound determination for errors due to signal quantization in multirate digital control system through state variable or z transform formulations
Johnson, J. C.↗
Estimation and control with quantized measurements
Monograph on estimation and optimal control with quantized measurements covering linear, nonlinear and time varying systems
Curry, R. E.↗
A study of flux quantization Final technical report
Magnetic flux quantization in superconductors
Meservey, R.↗
Image coding by linear transformation and block quantization
Image data coding by linear transformation and block quantization, considering Fourier, Hadamard and Karhunen-Loeve methods
Habibi, A.↗
Multispectral data compression through transform coding and block quantization
Transform coding and block quantization techniques are applied to multispectral aircraft scanner data, and digitized satellite imagery. The multispectral source is defined and an appropriate mathematical model proposed. The Karhunen-Loeve, Fourier, and Hadamard encoders are considered and are compared to the rate distortion function for the equivalent Gaussian source and to the performance of the single sample PCM encoder.
Ready, P. J.↗
Reduction of quantization error in measurement of frequency
Method reduces quantization errors using new digital circuit. Circuit provides very high resolution (10 to the minus 2nd power to 10 to the minus 3rd power Hz) without high-speed counters. It lends itself to microminaturization and is simple to construct. Unknown frequency is compared to standard frequency by means of zero-crossing coincidence-detecting circuit.
Nossen, E. J.↗
Fill-in binary loop pulse-torque quantizer
Fill-in binary (FIB) loop provides constant heating of torque generator, an advantage of binary current switching. At the same time, it avoids mode-related dead zone and data delay of binary, an advantage of ternary quantization.
Lory, C. B.↗
Quantized vortices around wavefunction nodes. II
The expectation of quantized vortices around the nodes of wavefunctions is formulated in terms of Schroedinger quantum mechanics, and the derivation is shown to depend only on the requirement that the wavefunction be single-valued and continuous. The implications of circulation for the topology of the nodes are discussed, and consideration is given to the nodes and circulation of a smooth wavefunction in D dimensions and to the significance of exceptional nodal points. The theoretical results are illustrated by an example of an infinite field of regularly spaced vortices.
Hirschfelder, J. O.↗
Quantization and symmetry in periodic coverage patterns with applications to earth observation
Analytical approaches based on an idealized physical model and concepts from number theory show that in periodic coverage patterns, uniquely defined by their revolution numbers R (orbital) and N (rotational), the subnodal points are earth-fixed, and they divide the equator into R equal segments of length s. The ascending subsatellite trace crosses each point once (only) each period. The descending subnodal points coincide with the ascending points if the integers N and R have like parity, and bisect the intervals between them if opposite. The interval between consecutive unidirectional crossings is Ns. Symmetries extend the equatorial results to all parallels of latitude. Complete periodic patterns of traces exhibit an overall symmetry, with trace intersections confined to discrete coordinate values which are quantized in longitude (basic s-unit) and symmetric in latitude.
King, J. C.↗