scholarly journals Raised Cosine Filter Implementation on Digital Video Broadcasting Satellite 2 (DVB-S2)

2021 ◽  
Vol 5 (6) ◽  
pp. 1018-1024
Author(s):  
Rio Setiawan ◽  
Emy Haryatmi

The development of digital video broadcasting is still continue recently and was done by many parties. One of the project regarding this research was DVB project. There was three areas in digital video broadcasting. One of them was Digital Video Broadcasting Satellite Second Generation (DVB-S2). The development of this project is not focus only in video broadcasting but also focus in applications and mutlimedia services. The objective of this research was to implement raised cosine filter in DVB-S2 using matlab simulink in order to optimize SNR and BER value. Parameters used in this project was QPSK mode and LDPC with 50 iteration. Those parameters was chosen to maintain originality of data that sent in noisy channel. The result showed that by implementing raised cosine filter could optimized BER value of the system. The higher SNR value would give the lower BER value. In static video, the best SNR value when using a filter is 0.9 dB with a BER value of 0.000004810 while for dynamic video the SNR is 0.9 with a BER value of 0.00001030.  

2014 ◽  
Vol 60 (2) ◽  
pp. 258-271 ◽  
Author(s):  
Inaki Eizmendi ◽  
Manuel Velez ◽  
David Gomez-Barquero ◽  
Javier Morgade ◽  
Vicente Baena-Lecuyer ◽  
...  

Author(s):  
Budi Setiyanto ◽  
Risanuri Hidayat ◽  
I Wayan Mustika ◽  
Sunarno Sunarno

DVB-T2 (Digital Video Broadcasting Terrestrial Second Generation) reception requires a sufficient quality of the received signal. <em>CNR</em> (carrier-to-noise ratio) and <em>BER</em> (bit-error-rate) are two of quantities describing the quality. This paper presents the range of each quantity providing a successful reception based on real data obtained by field-measurements. This data was collected from MO (mobile-outdoor) and SI (stationary-indoor) receiving-systems capturing signal sent by some on-air trial transmitters broadcasting services focused on the fixed-receivers. The result indicated that the successful and failed receptions were split into two quite separated (concentrated) ranges of post-decoded <em>BER</em> and therefore a boundary distinguishing them could be prominently defined. In contrast, they were spread in a wide common range of <em>CNR</em> and pre-decoded <em>BER</em>. Furthermore, the boundary that corresponded to this last quantity was ambiguous. In the case of MO reception as numerical examples, the two split ranges of post-decoded <em>BER</em> were less than about 10<sup>-5</sup> and more than about 2.7 × 10<sup>-4</sup> for the successful and failed receptions, respectively, whereas <em>CNR</em> as high as about 14 dB could be viewed as a soft boundary distinguishing these both reception-success conditions.


2014 ◽  
Vol 543-547 ◽  
pp. 2632-2635
Author(s):  
Hao Wu ◽  
Hui Xie ◽  
Zhi Tao Huang ◽  
Yi Yu Zhou

The first challenging step of the demodulation of the Digital Video Broadcasting Second generation signal is frame synchronization. Physical Layer header is composed of Start of Frame and Physical Layer Signalling code. When the Start of Frame and the structure of Physical Layer Signalling code are known, Choi and Lee, Kim et al denote some Choi Lee Detectors and Post Detection Integration techniques, using the combination of differential detection of header code. In this paper, we present a scheme to achieve frame synchronization on the condition that the Physical Layer header code is uncertain.


2013 ◽  
Vol 59 (1) ◽  
pp. 160-167 ◽  
Author(s):  
D. Perez-Calderon ◽  
V. Baena-Lecuyer ◽  
A. C. Oria ◽  
P. Lopez ◽  
J. G. Doblado

2013 ◽  
Vol 5 (2) ◽  
pp. 50
Author(s):  
Wahyu Pamungkas ◽  
Eka Wahyudi ◽  
Anugrah Ahmad Fauzi

Instalasi antena parabola berfungsi untuk memudahkan pada saat pengarahan pointing antena ke satelit yang dituju. Permasalahan yang diketahui yaitu bagaimana perilaku parameter Bit Error Rate (BER) dan Carrier to Noise (C/N) pada LNB Combo yang menggunakan teknologi DVB-S2. Setelah instalasi antena parabola dilakukan dan sukses, maka langkah selanjutnya yaitu melakukan pointing antena. Pointing antena diarahkan pada posisi satelit yang akan dituju. Satelit yang akan dituju yaitu Palapa D menggunakan frekuensi C-Band sedangkan Ku-Band diarahkan pada satelit NSS 6. Setelah pointing selesai dilakukan maka langkah selanjutnya yaitu menghubungkan dengan Digital Video Broadcasting Satellite Second Generation (DVB-S2). DVB-S2 merupakan receiver. Parameter yang diamati yaitu parameter BER dan C/N. Parameter BER merupakan perbandingan dengan jumlah bit yang diterima secara tidak benar dengan jumlah bit informasi yang ditransmisikan pada selang waktu tertentu. Parameter C/N merupakan perbandingan nilai pada carrier yang diterima dengan nilai sinyal noise yang dihasilkan dalam suatu link. Diperlukan juga Low Noise Block (LNB) Combo yang berguna untuk mentransmisikan sinyal ke receiver. LNB yang digunakan merupakan LNB Combo, dimana dua buah frekuensi yakni C-Band dan KU-Band menjadi satu dalam sebuah LNB. Setelah melakukan pengukuran dan melihat hasil pengukuran, dapat disimpulkan bahwa LNB Combo berpengaruh pada sinyal C-Band yang dihasilkan, sinyal C-Band akan mengalami penurunan kualitas, ini dibuktikan dari hasil pengukuran yang telah dilakukan bahwa nilai parameter C/N dan BER pada Ku-Band lebih baik daripada nilai parameter C/N dan BER pada CBand. 


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