Data Broadcast Metadata Based on PMCP for Open Interface to a DTV Data Server

2005 ◽  
pp. 234-245
Author(s):  
Minsik Park ◽  
Yong Ho Kim ◽  
Jin Soo Choi ◽  
Jin Woo Hong
Keyword(s):  
Data Broadcast

scholarly journals A novel demodulation algorithm for VHF Data Broadcast signals in multi-sources augmentation navigation system

2020 ◽  
Vol 16 (3) ◽  
pp. 155014772091477
Author(s):  
Hongwei Zhao ◽  
Zichun Zhang ◽  
Xiaozhu Shi ◽  
Yihui Yin
Keyword(s):  
Navigation System ◽  
Signal To Noise Ratio ◽  
Open Loop ◽  
Timing Recovery ◽  
Loop Structure ◽  
Frame Synchronization ◽  
Source Information ◽  
Carrier Synchronization ◽  
Data Broadcast ◽  
Training Symbol

The augmentation navigation system based on multi-source information fusion can significantly improve position accuracy, and the multi-source information is usually transmitted through VHF Data Broadcast . Aiming at the burst characteristics of VHF Data Broadcast, this article proposed a novel demodulation algorithm based on open-loop structure. When a VHF Data Broadcast burst is detected, the timing recovery should be finished first, and the value of cross-correlation between the timing-recovered signal and the local training symbol is calculated to complete the frame synchronization. Then, the data-aided and non-data-aided algorithms are used to estimate the frequency offset. Finally, the phase offset is estimated and the carrier synchronization is accomplished. The simulation results demonstrate that the proposed algorithm can quickly accomplished carrier synchronization without using feedback-loop structure, and the bit error rate is less than 10−4 when the signal-to-noise ratio is greater than 17 dB, which satisfy the requirement of receiving VHF Data Broadcast signals in augmentation navigation system. Therefore, the proposed algorithm can be used for receiving VHF Data Broadcast signals.

Coding-Based Data Broadcast Scheduling in On-Demand Broadcast

2011 ◽  
Vol 10 (11) ◽  
pp. 3774-3783 ◽  
Author(s):  
Cheng Zhan ◽  
Victor C. S. Lee ◽  
Jianping Wang ◽  
Yinlong Xu
Keyword(s):  
Broadcast Scheduling ◽  
Data Broadcast ◽  
On Demand

scholarly journals Algebraic data retrieval algorithms for multi-channel wireless data broadcast

2013 ◽  
Vol 497 ◽  
pp. 123-130 ◽  
Author(s):  
Xiaofeng Gao ◽  
Zaixin Lu ◽  
Weili Wu ◽  
Bin Fu
Keyword(s):  
Data Retrieval ◽  
Wireless Data ◽  
Data Broadcast ◽  
Retrieval Algorithms ◽  
Wireless Data Broadcast

scholarly journals Ballpark Figure Algorithms for Data Broadcast in Wireless Networks

2013 ◽  
Vol 2 (3) ◽  
pp. 277-280
Author(s):  
K.S. Narmatha ◽  
E. GeorgeDharmaPrakash Raj
Keyword(s):  
Wireless Networks ◽  
Data Broadcast

Answering Multiple-Item Queries in Data Broadcast Systems

2009 ◽  
pp. 120-132
Author(s):  
Adesola Omotayo ◽  
Ken Barker ◽  
Moustafa Hammad ◽  
Lisa Higham ◽  
Jalal Kawash
Keyword(s):  
Data Broadcast ◽  
Multiple Item
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