Position determination using the DTV segment sync signal

Abstract

As a supplement to the Global Positioning System (GPS) in an urban center and indoor environment, the digital television (DTV) segment sync signal can be employed to obtain a mobile user's position. Two DTV receivers and a counter are integrated to measure the time difference of arrival (TDOA) for a pair of received signals from a transmitter and its corresponding repeater (DTVR). Using the measurements from a transmitter and its multiple corresponding DTVR pairs, the mobile user position can be estimated using the recursive least square method. An experiment done in Seoul using two low-grade high resolution digital television (HDTV) receivers and a two-channel universal counter demonstrates that the mean value of the mobile user position measurement is accurate to 42.58 meters circular error probability (CEP).

Research on Dynamic Tracking of Seamless Positioning Based on Global Positioning System, Beidou, and Digital Television Multimedia Broadcasting

“…Compared with the satellite signal, the strength of the DTMB signal is more than 30 dB and can easily penetrate urban and indoor environments, and the TV signal has a high transmission power, wide coverage, low frequency, high positioning accuracy, and high bandwidth, making it more suitable for precise localization in cities and indoor environments. (1)(2)(3) Thus, DTMB signals become an ideal choice for auxiliary satellites in urban areas and indoors. The positioning technology based on TV terrestrial broadcasting signals has a certain research potential outside China.…”

Design and Simulation Verification of New Miniaturized Dual-frequency Microstrip Antenna

“…Currently, wireless positioning systems tend to fuse multiple signal sources to form a combined positioning system. Because of China's independently developed digital television multimedia broadcasting (DTMB) standard, which has advantages of high positioning accuracy, high signal strength, strong penetrability, and wide coverage, (1,2) in this paper, a combined navigation positioning system based on GPS and DTMB is proposed to solve the blind zone problem of a GPS single satellite system. However, GPS and DTMB signals work in different frequency bands.…”

Localization using DVB-T2 Signals

“…For seamless positioning, other systems were proposed to replace or augment GNSS in such environments [1]. Navigation using Signals of Opportunity (SoOP) [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] is one of the alternative non-GNSS systems. These signals can be any radio frequency signals that are designed mainly for communication rather than navigation and, consequently, are optimized for provision of adequate coverage and can be of relatively high power and able to penetrate buildings.…”

“…Examples include GSM [3][4][5][6], FM [7][8][9], Wi-Fi [5,10,11] as well as both analog and digital television signals [12][13][14][15][16][17][18]. In particular, the idea of using TV signals, which is relevant to the work presented in this paper, was first reported by Rosum Corporation [12] where the synchronous signals in both ATSC digital and NTSC analog TV signals were used to estimate the Time Of Arrival (TOA).…”

“…They can achieve an error in position about 10 meters for a particular studied example with limited inter-transmitter distances. In [16] another technique was used for estimating the user position with accuracy about 40 meters, where the concept is based on integrating two high resolution digital television receivers and two universal counters to measure the time difference of arrival (TDOA). In contrast, the work in [17] estimates the TOA using a time delay extraction method combined with K-mean clustering algorithm at which the minimum value of each cluster is the time delay.…”