Digital Terrestrial Television Broadcasting in China

Liang, Weiqiang; Zhang, Wenjun; He, Dazhi; Guan, Yunfeng; Wang, Yao; Sun, Jun

doi:10.1109/mmul.2007.47

Cited by 11 publications

(7 citation statements)

References 5 publications

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“…The apparent sidelobe of the yoz plane is mainly due to the larger width of the bowtie dipole unit and the coupling effect. These results demonstrate that the proposed antenna meets the requirement of DTV transmitting for a full band, high gain, and low VSWR [19], [20]. Table II summarizes the performance comparison between the proposed prototype and previously reported antenna for the DTV transmitting.…”

Section: Implementation and Performancementioning

confidence: 61%

A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit

Fang

Jiang

2020

IEEE Access

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A full-band digital television (DTV) transmitting antenna array with dual-layer bowtie dipole unit is proposed in this paper. The dual-layer bowtie dipole is utilized as the antenna unit to broaden the frequency bandwidth, and its key parameters are discussed. Besides, a wideband impedance matching network with stepped complex impedance transformers is designed to achieve the full-band low voltage standing wave ratio (VSWR). For verification, a prototype is designed, fabricated, and measured. The experimental results agree well with the simulations. The measurement shows a relative bandwidth of 62.4% (455 MHz-868 MHz) under the criterion of VSWR < 1.15. Particularly, the VSWR is less than 1.13 within the range of 470 MHz-862 MHz, (i.e. the full band of the DTV transmitting system). And the proposed antenna maintains a stable gain larger than 11.6 dBi over the operating frequency band with the half-power beam width of 70° ± 3° in the horizontal plane, which meets the requirements of the full-band signal transmission in the DTV broadcasting system. INDEX TERMS Full-band antenna array, dual-layer bowtie dipole, DTV transmitting antenna, low VSWR.

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Section: Implementation and Performancementioning

confidence: 61%

A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit

Fang

Jiang

2020

IEEE Access

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“…It contains Advanced Television Systems Committee (ATSC), Digital Video Broadcasting‐Terrestrial and Integrated Services Digital Broadcasting‐Terrestrial standard. China has recently developed a fourth standard that meets the country's unique needs . It was published in August 2006 and had been put into execution from August 2007 .…”

Section: Introductionmentioning

confidence: 99%

“…First, the location region can be extended to all DTV signal coverage area. Second, the standard signal has strong ability in both indoor and downtown reception . Third, the successful reception ratio is much higher than 96% at the speed of 150–170 km/h .…”

Section: Introductionmentioning

confidence: 99%

A passive location system for single frequency networks using digital terrestrial TV signals

Yan

2011

Trans Emerging Tel Tech

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In this work, a passive location system for single frequency networks using digital terrestrial signals is proposed. A crosscorrelation method that requires a correlation with fixed frequency was introduced for time delay estimation. The idea is first online reconstruction and update of the transmitted copy of the nearest base station (BS), and then uses this signal copy for correlation with the received signal samples. A time delay extraction method combined with K-mean clustering algorithm is developed. The minimum value of each cluster is extracted as the time delay of each BS. The BS identification can be modelled as a data association problem. A new gate that requires little statistical knowledge was utilised to solve time-of-arrival measurement uncertainty. Meanwhile, the data association strategy is also developed for successive data stream. Mobile station location is formulated as an optimisation problem and solved by a search processing. Simulations study was conducted to evaluate the system performance for different scenarios. The results demonstrate its robustness and high performance.

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“…Chinese DTTB contains advanced techniques such as digital multimedia broadcasting-terrestrial (DMB-T) from Tsinghai University and advanced digital television broadcasting-terrestrial (ADTB-T) from Shanghai Jiao Tong University [15−18] . Compared with DVB-T [19] , DTTB has many technical innovations [18] . Therefore, analysis of the DTTB signal AF is necessary and provides the foundation for designing the DTTB based passive radar.…”

Section: Introductionmentioning

confidence: 99%

Analysis and side peaks identification of Chinese DTTB signal ambiguity functions for passive radar

Gao

Tao

Wang

2009

Sci. China Ser. F-Inf. Sci.

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Passive radar is one of the current research focuses. The implementation of the Chinese standard digital television terrestrial broadcasting (DTTB) creates a new opportunity for passive radar. DTTB system contains single-carrier and multicarrier application modes. In this paper, ambiguity functions of the DTTB signals in the single-carrier and multicarrier application modes are analyzed. Ambiguity function of the DTTB signal contains one main peak and many side peaks. The relative positions and amplitudes of the side peaks are derived and the reasons for the occurrence of the side peaks are obtained. The side peaks identification (SPI) algorithm is proposed for avoiding the false alarms caused by the side peaks. Experimental results show that the SPI algorithm can indentify all the side peaks without the power loss. This research provides the foundation for designing the DTTB based passive radar.passive radar, DTTB, ambiguity function, side peaks identification

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Digital Terrestrial Television Broadcasting in China

Cited by 11 publications

References 5 publications

A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit

A Full-Band Digital Television Transmitting Antenna Array With Dual-Layer Bowtie Dipole Unit

A passive location system for single frequency networks using digital terrestrial TV signals

Analysis and side peaks identification of Chinese DTTB signal ambiguity functions for passive radar

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