Unterschied Dvb S Und Dvb S2

What Is DVB S

DVB Due south stands for Digital Video Dissemination Satellite.The Kickoff application of DVB South was launched in France from Canal+. Which enabled the public for satellite delivered television. Where S is used past the satellite to serve services in different continents of earth.

DVB Southward is used in both MCPC and SCPC modes for DTH services and Broadcast Network Feeds. Where MCPC stands for Multi Carrier Per Channel and SCPC for Single Carrier Per Channel.

Explain Me What Is MCPC ?

In other words

DVB S standard which depends on basically these factors,

(1) Modulation Technique

DVB South apply QPSK modulation or 4PSK modulation.

(2) Encoding Technique

It is mandatory for DVB S to take MPEG 2 Transport stream. Where MPEG is encoding technique known as Moving Moving picture Skillful Grouping. So MPEG 2 data is carried out for DVB S standard. MPEG 2 compression algorithm is used for this data. Where MPEG 2 data is similar we run into in DVDs (Digital Video Disc).

Explicate Me What Is MPEG Transport Stream ?

(3) FEC

DVB S uses Reed Solomon algorithm (RS) one/2 , 2/3 , 3/iv , 5/half-dozen and 7/8.

etc.

Further improver were made for the emergence of DVB-DSNG. DSNG stands for Digital Satellite News Gathering. Which enable us to utilise 8PSK with xvi QAM. This is more efficient style of digital modulation.In DSNG a news reporter have the two style advice with his news center. This is washed via Transportable Antenna which is mounted on a pocket-size kind of truck.

QPSK stands for Quadrature Phase Shift Keying means 4PSK. 4PSK means information technology use four carriers. If the number of carriers will be increased , more data we tin can transmit through satellite or we can say more than densely we can provide services. Only it crave more power.

Thus big number of digital channels we can carry on satellite transponder. The hire of satellite transponder is very high. And then it is desirable for united states to send maximum number of channel in limited space.

What Is DVB S2

DVB S2 stands for Digital Video Broadcasting Satellite Second Edition , equally its proper name indicates that it is 2nd edition of DVB Southward thus DVB S2 is improved version of DVB S. It is replacement of DVB S defined past the ETSI in march 2005. ETSI stands fro European Telecommunications Standard Institute. The performance of DVB S2 is very closed to the theoretical value. DVB S2 standard is very powerful for satellite broadband services also.

In other words,

DVB S2 standard which depends on basically these factors,

(1) Modulation Techniques

DVB S2 uses non just QPSK modulation it uses also xvi APSK and 32 APSK to more dense the data.

(ii) Encoding

DVB S2 signals are send with MPEG iv pinch algorithm like blue ray disc contains the information in MPEG iv.

(three) FEC

FEC stands for Frequency Error Control. DVB S2 uses LDPC and BCH i/4 , 1/three , 2/v , ane/2 , iii/5 , two/3 , three/iv , 4/five , v/vi , 8/ix , 9/x coding. Where LDPC stands for Low Denisity Parity Bank check and BCH stands for Bose Chaudhuri Hocquenghem coding.In LDPC coding FEC is done with the fewer bits of data just.

DVB S2 provides low noise performance even below the noise floor.

Explain Me What Is FEC & BEC In Cursory ?

Benefits of DVB S2 Over DVB S

DVB S2 uses BCH algorithm instead of Reed Solomon coding which is better error correction coding. Likewise DVB S2 uses fewer information for correction in comparison with DVB S.

DVB S2 have the astern compatibility means DVB S2 receiver can also receive DVB Due south point.

DVB S2 increase the channel capacity by 30% per transponder means DVB S2 can carry 30% more than services than DVB S.

DVB S2 with MPEG four compression algorithm delivers the HDTV (High Definition television channels) in the aforementioned bandwidth for SDTV (Standard Definition Tv channels).