Title :
The characteristics of Doppler signals depending on directions of man´s movements relative to microwave antennas of motion detectors for alarm systems
Author :
Malishev, Victor M. ; Petrov, Andrey Y. ; Levtchouk, Michael S. ; Kochin, Alexy E.
Author_Institution :
St. Petersburg State Tech. Univ., Russia
Abstract :
Microwave Doppler detectors show the best detectivity among other motion detectors for alarm systems. Microprocessors allow one to use complex signal processing algorithms for noise-immunity improvement. However, to select an algorithm and identify a decision-making criterion, one should study in more detail the characteristics of signals generated by sensitive elements of the detector. The present article has the following objectives: to reveal the characteristics of Doppler signals and apply them to alarm systems; to determine respective analytical ratios to be used in a respective mathematical model; to identify additional evidence and criteria to improve the reliability of decisions on whether or not an intruder is present
Keywords :
Doppler effect; alarm systems; microwave antennas; microwave detectors; Doppler detectors; Doppler signals; alarm systems; analytical ratios; detectivity; intruder; mathematical model; microwave antennas; motion detectors; signal processing algorithms; Alarm systems; Character generation; Decision making; Detectors; Microprocessors; Motion detection; Signal analysis; Signal generators; Signal processing; Signal processing algorithms;
Conference_Titel :
Electronics and Radiophysics of Ultra-High Frequencies, 1999. International University Conference Proceedings
Conference_Location :
St Petersburg
Print_ISBN :
5-7422-0083-8
DOI :
10.1109/UHF.1999.787988
