dr hab. inż. Michał Meller
- Profesor uczelni w Katedra Systemów Automatyki
Conveyor belt type checkweighers are complex mechanical systems consisting of a weighing sensor (strain gauge load cell, electrodynamically compensated load cell), packages (of different shapes, made of different materials) and a transport system (motors, gears, rollers). Disturbances generated by the vibrating parts of such a system are reflected in the signal power spectra in a form of strong spectral peaks, located usually in...
Approximate Cramér–Rao bound on Doppler error in correlation-processing relatively narrowband noise radar
The paper studies limitations on accuracy of Doppler estimation in continuous-wave noise radar with correlation processing. Second order properties of output of the correlation receiver are evaluated and an approximate Cram´er-Rao bound on errors of Doppler measurement is derived. The accuracy of Doppler measurements is found to be aﬀected by the following factors: power spectral density of noise signal, frequency response of the...
The problem of cancellation of strong, potentially nonstationary,echoes in noise radars and passive radars utilizing digitaltransmissions is considered. The proposed solution is a multi-stage procedure.Initial clutter estimates, obtained using the least mean squares(LMS) algorithm, are refined using specially designed filters, "matched"to spectral densities of targets and clutter. When the postprocessing filtersare noncausal, the...
Uzyskane stopnie/tytuły naukowe
Nadanie stopnia naukowegodr inż. Automatyka i robotyka (Dziedzina nauk technicznych)
wyświetlono 287 razy