Selecting digital filters
Technique reduces task of filter design by using cut off frequency, termination frequency and weight number to determine filter effect on frequency domain of digital filter input data function.
Demandel, R. E.↗
Engineering topics
Krivo, S. J.
Publications and source records attributed to Krivo, S. J..
Aerodynamic properties of spherical balloon wind sensors.
A first-order theory of the fluctuating lift and drag coefficients associated with the aerodynamically induced motions of rising and falling spherical wind sensors is developed. The equations of motion of a sensor are perturbed about an equilibrium state in which the buoyancy force balances the mean vertical drag force. It is shown that, to within first order in perturbation quantities, the aerodynamic lift force is confined to the horizontal, and the fluctuating drag force associated with fluctuations in the drag coefficient acts along the vertical. The perturbation equations are transformed with Fourier-Stieltjes integrals. The resulting equations lead to relationships between the power spectra of the aerodynamically induced velocity components and the spectra of the fluctuating lift and drag coefficients.
Fichtl, G. H.↗
Study to improve the accuracy and resolution of FPS-16 radar/Jimsphere wind measurements Final report
Data processing methods for improving FPS-16 radar/Jimsphere system measurements of atmospheric motion
De Mandel, R. E.↗
Aerodynamic properties of rough spherical balloon wind sensors
First-order theory of fluctuating lift and drag coefficients for aerodynamically induced motions of rising and falling spherical balloon wind sensors
De Mandel, R. E.↗
Radar and balloon measurement of vertical air motions between the surface and 15 km
Vertical air motions measurement by balloon radar tracking, discussing method of radar noise error reduction by ascent rate smoothing technique
De Mandel, R. E.↗
Mesoscale structure of the vertical component of the wind
Vertical mesoscale contribution to vertical wind shear profiles, using radar/Jimsphere measurements
Krivo, S. J.↗
Selecting digital filters for application to detailed wind profiles
Selecting digital filters for application to detailed wind profiles - tables
De Mandel, R. E.↗
Characteristics and processing of fps-16/ jimsphere raw radar data
Error analysis of fps-16/jimsphere raw radar data
De Mandel, R. E.↗
Capability of the FPS-16 radar/jimsphere system for direct measurement of vertical air motions
Capability and procedure for direct measurement of vertical air currents using FPS-16 radar/ jimsphere system
De Mandel, R. E.↗
A method of extracting vertical motions from FPS-16 radar/Jimsphere wind data.
Vertical air motions derived from FPS-16 radar- Jimsphere balloon wind data, noting data processing procedures and measurement error reduction
Krivo, S. J.↗