Panasonic has unveiled a radar technology that can help reduce accidents at traffic intersections.
When applied in traffic surveillance sensors located at intersections, the radar technology can help increase automotive safety by detecting pedestrians and bicycles hidden in the driver's blind spots.
The Japanese giant said that compared to optical and infrared cameras and laser sensors, its millimeter-wave radar technology allows for detecting objects outdoors in poor visibility conditions, such as night, rain and snow, as well as against the sunlight.
Compared to conventional millimeter-wave radar technologies, Panasonic's radar technology is capable of detecting humans and cars simultaneously in spite of the fact that human body reflects extremely weak radar signals compared with car body.
Panasonic scientists introduced a coded pulse modulation technique that employs a newly designed code sequence for pulse radar method to improve sensitivity characteristics, thereby achieving extension of the detection range and finding out small objects that have weak radar reflection.
The radar achieved high detection performance with a range resolution of less than 50 cm and an angular resolution of 5 degrees, which enables to detect pedestrians and vehicles. Adaptive antenna technique that combines radar beamforming transmission and adaptive array antenna reception with signal processing algorism for estimation of target direction, thereby achieving high angle resolution even with a smaller antenna compared with a conventional one.
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