Title :
A Spatial Filtering Technique for Microwave Distance Measurements
Author :
Ostwald, Olaf ; Schiek, Burkhard
Author_Institution :
Institut fÿr Hoch- und Höchstfrequenztechnik, Ruhr-Universitÿt, 4630 Bochum 1, Federal Republic of Germany
Abstract :
Accurate distance measurements for industrial applications can be performed with FMCW systems which use a nonlinear sweep and the phase measuring technique. These systems only work accurately, if multiple echoes are excluded. The measurement accuracy is disturbed in complex environments especially by short range secondary reflections. The influence of these unwanted reflections can be reduced by appropriate analogue or digital spatial filtering techniques.
Keywords :
Distance measurement; Filtering; Microwave filters; Microwave measurements; Microwave theory and techniques; Performance evaluation; Phase measurement; Radar; Reflection; Transfer functions;
Conference_Titel :
Microwave Conference, 1982. 12th European
Conference_Location :
Helsinki, Finland
DOI :
10.1109/EUMA.1982.333127