On the a priori information in sequential estimation problems.
Error effect in a priori information on sequential estimate variance of linear system states, noting optimal filter synthesis
SEQUENTIAL ANALYSIS↗
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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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Technique for measuring absorptance and emittance by using cyclic incident radiation.
Absorptance and emittance of metal surfaces determined via cyclic incident radiation, noting error computation and method accuracy parameters
THERMAL CYCLING↗
Efficient antenna systems - Calculated gain of the advanced antenna system
Calculated gain of advanced antenna system
ERROR FUNCTION↗
Investigation of the reliability of a proposed confidence level procedure for error probability of a bank of correlators
Reliability of proposed confidence level procedure for error probability of bank of correlations
ERROR FUNCTION↗
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↗
Parameter optimization in systems subject to worst /bounded/ disturbance.
Parameter optimization in systems subject to worst bounded disturbance that maximizes chosen performance index
STEEPEST DESCENT METHOD↗
Probability-of-error bounds for binary transmission on the slowly fading Rician channel.
Chernoff bound and tilted distribution argument for obtaining error probability bounds for binary signaling on slowly fading Rician channel
SIGNAL PROCESSING↗
Stable evaluation of polynomials.
Stable evaluation algorithm for polynomials, discussing minimal Newton forms, error estimation, etc
STABILITY DERIVATIVE↗
Error probabilities due to additive combinations of Gaussian and impulsive noise.
Error probabilities of matched filter receiver operating in additive combination of impulsive and Gaussian noise
GAUSSIAN NOISE↗
Error bounds of continuous Kalman filters and the application to orbit determination problems.
Error effect in continuous Kalman filters used in orbit determination problems, deriving error bounds formula
ORBIT CALCULATION↗
Methods for injection-error analysis and their comparison.
Statistical techniques for missile injection error analysis, discussing direct and adjoint methods
STATISTICAL ANALYSIS↗
Numerical differentiation of equally spaced and not equally spaced experimental data.
Numerical differentiation and smoothing of equally and nonequally spaced experimental data in independent variable
INDEPENDENT VARIABLE↗
Technique for measuring absorptance and emittance by using cyclic incident radiation.
Absorptance and emittance of metal surfaces determined via cyclic incident radiation, noting error computation and method accuracy parameters
METAL SURFACE↗
Effects of reinforcement intervals in paired- associate learning.
Reinforcement intervals /RI/ effect in paired- associate learning using within-subjects, noting error dependence on RI
MEMORY↗
On the solution of error covariance difference equations by means of canonical decomposition and z transform.
Canonical decomposition of nonlinear error covariance difference equation derived for discrete estimation problems
NONLINEAR EQUATION↗
The effect of timing errors in optical digital systems
The effects of imperfect timing in direct detection (non-coherent) optical binary systems using both PPM and on-off keying for bit transmission are investigated. Particular emphasis is placed on specification of timing accuracy, and an examination of system degradation when this accuracy is not attained. Bit error probabilities are shown as a function of timing errors, from which average error probabilities can be computed for specific synchronization methods. Of significant importance is the presence of a residual, or irreducible error probability in both systems, due entirely to the timing system, that cannot be overcome by the data channel.
Gagliardi, R.↗
On the timing problem in optical PPM communications.
Investigation of the effects of imperfect timing in a direct-detection (noncoherent) optical system using pulse-position-modulation bits. Special emphasis is placed on specification of timing accuracy, and an examination of system degradation when this accuracy is not attained. Bit error probabilities are shown as a function of timing errors, from which average error probabilities can be computed for specific synchronization methods. Of significant importance is shown to be the presence of a residual, or irreducible error probability, due entirely to the timing system, that cannot be overcome by the data channel.
Gagliardi, R. M.↗
The effect of timing errors in optical digital systems.
The use of digital transmission with narrow light pulses appears attractive for data communications, but carries with it a stringent requirement on system bit timing. The effects of imperfect timing in direct-detection (noncoherent) optical binary systems are investigated using both pulse-position modulation and on-off keying for bit transmission. Particular emphasis is placed on specification of timing accuracy and an examination of system degradation when this accuracy is not attained. Bit error probabilities are shown as a function of timing errors from which average error probabilities can be computed for specific synchronization methods. Of significance is the presence of a residual or irreducible error probability in both systems, due entirely to the timing system, which cannot be overcome by the data channel.
Gagliardi, R. M.↗