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Panasonic unveils wide-field mm-wave radar tech

Posted: 17 Oct 2013 ?? ?Print Version ?Bookmark and Share

Keywords:millimetre-wave radar? detection sensor? FOV system?

Panasonic Corp. has created what it describes as high precision, wide field of view millimetre-wave technologies that aim to deliver significant improvements in traffic safety. According to the company, the technologies will be applied to 79GHz radar, and used in detection sensors to avoid accidents occurring at intersections, accelerating the adoption of advanced safety support systems.

Millimetre-wave radar is capable of detecting pedestrians and vehicles in night time and bad weather conditions. Panasonic said its technologies have improved the detection accuracy of the radar, so that it can separately detect cars, bicycles and pedestrians that are separated by a distance of 20cm at a speed of less than 0.1s. These technologies also allow the operation of multiple millimetre radars, enables for a wider field of view (FOV) system. These features offer greater flexibility for installation at intersections, continued Panasonic.

By applying unique coding technologies to millimetre-wave radar in order to attain rapid scanning and detection in a data cycle of less than 0.1s, it is able to detect vehicles, bicycles and slow moving pedestrians that are separated by a distance of 20cm at the range of 40m, with an accuracy 2.5 times higher than that of previous models of the millimetre-wave radar. In addition, the simultaneous operation of multiple millimetre-wave radars has been is realised by controlling the interference between multiple radars, widening the FOV, and making it suitable for monitoring an overall area of a typical intersection.

A radar sensor in the millimetre wave band can detect moving objects. However, in order to achieve higher location accuracy while maintaining the FOV, a higher dynamic range was necessary. In addition, it had not been possible to a cover a wide FOV that would enable the monitoring of a complete intersection.

Panasonic has developed the radar technology as the part of "Research and Development Project for Expansion of Radio Spectrum Resources" supported by the Ministry of Internal Affairs and Communications of Japan. The company will demonstrate the technology at the ITS World Congress 2013 (October 15 to 18 at Tokyo Big Sight in Japan), using test equipment with an experimental radio licence.

Panasonic holds 27 patents in Japan and 14 patents overseas including pending applications for its radar technology.

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