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

fYear

1999

fDate

36373

Firstpage

460

Lastpage

463

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Radiophysics of Ultra-High Frequencies, 1999. International University Conference Proceedings

Conference_Location

St Petersburg

Print_ISBN

5-7422-0083-8

Type

conf

DOI

10.1109/UHF.1999.787988

Filename

787988