Positioning System based on DTMB: Design, Laboratory Test and Field Trial

Compared with Global Navigation Satellite System (GNSS) which has been deeply studied and widely applied, the systems based on digital terrestrial television broadcasting (DTTB) for positioning need to be further studied. A positioning system based on digital television terrestrial multimedia broad-casting(DTMB) system is well designed and implemented on FPGA in this paper. The designed postioning system is based on time difference of arrival (TDOA) measurements. Laboratory trial results show that the proposed system can provide accurate positioning results when the signal-to-noise ratio (SNR) is above 8 dB. Field trial results prove that the positioning error is less than 10 meters under line-of-sight (LOS) channels.