Title :
Data fusion for detecting sonar contacts from multiple sensors: the two sensor case
Author :
Mason, Richard L.
Author_Institution :
Surface Antisub. Warfare Dept., Naval Undersea Warfare Center Detach., New London, CT, USA
Abstract :
The detection performance obtained by combining the output of two sensors is considered. Four combination methods are analyzed and compared: combine by summing the signals; make 0,1 decisions at the sensors and OR the decisions; use the 0,1 decisions in an AND detector; sum threshold signals to make detections summing the threshold signals provides a system designer with tradeoffs between message rate from the sensor to the detection processor, prob(false alarm), and prob(detection). The comparisons also show that the OR detector performance is much better than the AND performance if there is a large difference in signal levels at the two sensors
Keywords :
acoustic signal processing; sensor fusion; signal detection; sonar; AND detector; OR detector; combination methods; data fusion; detection performance; detection probability; detection processor; false alarm probability; message rate; multiple sensors; signal levels; signals summing; sonar contacts detection; threshold signals; Acoustic sensors; Acoustic signal detection; Computer aided software engineering; Gaussian noise; Sensor fusion; Sensor phenomena and characterization; Sensor systems; Signal processing; Sonar applications; Sonar detection;
Conference_Titel :
OCEANS '93. Engineering in Harmony with Ocean. Proceedings
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-1385-2
DOI :
10.1109/OCEANS.1993.326047
