KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Settings

Author: search.filters.author.Suwansukho, NattapanSubject: search.filters.subject.DVB-T2

Search Results

Now showing 1 - 6 of 6
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Item,
    DTTV Localization with Fingerprinting Technique and Clean Algorithm Based on Measurement Data
    (2022-01-01)
    Promwong, Sathaporn
    ;
    Suwansukho, Nattapan
    Digital terrestrial television (DTTV) technology has been developed and used to broadcast the television program. A numerous applications have been developed for the additional feature used with DTTV. One of these features that can be used which is the localization system with DTTV broadcasting. The advantage of DVB-T2 broadcasting channel for localization technology which very wide coverage area that covered whether outdoor and indoor environment. In the present there are divers methodologies to locate the position of an object or user such as the Global Positioning System (GPS), Cellular Positioning System (CPS) and Wi-Fi Positioning System (WPS). Nowadays there are various application that used for monitoring and controlling such as a water level sensor system, a traffic control system, an intrusion monitoring system etc. that consists of the localization system. The received data can’t be useful without the accuracy location. The mentioned foregoing system still have a limitation in some environment such as the GPS signal is not accessible to some environments, the CPS signal is based on a cell phone tower and the WPS is based on Wi-Fi hotspot. Therefore, the accuracy of localization is decreased. In order to overcome the foregoing limitation of these three systems the complementary remedy the poor coverage is required. The objective of this research is to improve the DVB-T2 propagation channel by a Clean algorithm to eliminate the noise propagation channel for an accuracy of localization system. This technique is very useful for localization analysis in DTTV technology. The distinctive advantage of the DTTV localization is the wide coverage of signal whether an indoor or outdoor environment. Moreover, when the Clean algorithm has been used the noise in propagation channel has been eliminated lead to the accuracy of location receive.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Item,
    Evaluation of DTTV Positioning Based on Measurement Data
    (2022-01-01)
    Promwong, Sathaporn
    ;
    Southisombat, Khamphoui
    ;
    Suwansukho, Nattapan
    Positioning uses radio waves such as AM, FM, telephone, and wireless signals. Which have been studied by many research for this thesis, consider finding positions using signals. The digital terrestrial television signal was used for positioning. The measurement model is designed with 121 positions covering an area of lO× 10 square meters by installing an antenna receiving height of 1 meter for reference height and 6 meters as specified by the NBTC. The distance from the transmit antenna to the receiving antenna is about 26 kilometers, using spectrum analyzers to measure and collect the results for analysis and compare the distance errors by using a fingerprinting technique and clean algorithm and a clean algorithm to get the most suitable signal. It can be seen that the distance error is reduced. So, it will be more accurate and the basis for future studies. Moreover, it can locate more accurately using digital terrestrial television signals, The DVB-T2 standard digital terrestrial television signal and fingerprinting technique, and the CLEAN algorithm.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Item,
    Experimental study of DVB-T2 threshold
    (2019-04-15)
    Suwansukho, Nattapan
    ;
    Promwong, Sathaporn
    This paper describes the Threshold of Digital Terrestrial Television second generation network in Thailand. The measured result were carried out from 22 measured location, located in 22 district in Bangkok, Thailand.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Item,
    Evaluation of Noise Margin in DVB-T2 System
    (2018-07-02)
    Deepunya, Chairak
    ;
    Suwansukho, Nattapan
    ;
    Promwong, Sathaporn
    This paper describes the Noise Margin of Digital Terrestrial Television network in Thailand. The result of analysis has delivered from 22 measured location, located in 22 district in Bangkok, Thailand.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Item,
    Evaluation of DVB-T2 transmission channel in Bangkok, Thailand
    (2017-04-19)
    Suwansukho, Nattapan
    ;
    Promwong, Sathaporn
    ;
    Chamchoy, Monchai
    This paper describes the evaluation of DVB-T2 transmission channel in Bangkok Thailand. The DVB-T2 test signal is transmitted in Bangkok Thailand. Type of transmission channel were used including Gaussian, Rician for fix rooftop reception. The measurements are consisting of a several environments such as open area, urban area, high building area. The measurement result are include Power Output from transmitter after combiner, LBER, bBER, NsMAR (Noise Margin), MER (Modulation Error Ratio), SNR (Signal to Noise Ratio), CNR (Carrier to Noise Ratio), and Signal. The measurement result of this paper lead to the evaluation of DVB-T2 transmission channel for environment of Bangkok, Thailand and could be useful to improve and to design the digital television broadcasting network in Thailand especially in urban area like Bangkok.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Item,
    Experimental study of DVB-T2 in Thailand
    (2017-02-21)
    Suwansukho, Nattapan
    ;
    Promwong, Sathaporn
    This paper presents an analysis of digital television broadcasting, that used DVB-T2 standard, in Bangkok Thailand. The result of analysis has derived from signal measurement 20 location in Bangkok. The measurement location consists of several difference areas such as an urban area, high building area, open area. The measurement's result are consists of signal strength, C/N, MER, SNR, NsMAR, bBER, LBER, power output after combiner. The measurement illustrates the effect of attenuation and interference in propagation channel. The propose of this study is checking DVB-T2 channel characteristic approximately attenuation between transmitted antenna at base station and received antenna at far field. The result of the analysis could be useful for improve and design the digital television broadcasting network.