Analog communication vsbsc modulation

HTML/CSS Learn HTML Learn CSS Learn W3.CSS Learn Colors Learn Bootstrap JavaScript Learn JavaScript Learn jQuery Learn JqueryUI Learn jQuery Mobile Learn AppML Learn AngularJS Learn Angular Material Learn Ext.js Learn AJAX Learn JSON XML Tutorials Learn XML Learn XML DOM Learn XSLT Learn AJAX Learn DTD Learn WSDL Learn XPath Learn AIML Learn ebXML Learn XML-RPC Learn XQuery Learn XSD Learn XSLT Academic Learn Agile Learn Accounting Basics Learn Artificial Intelligence Learn Automata Theory Learn Biometrics Learn Behavior Driven Development Learn Cloud Computing Learn Compiler Design Learn Computer Fundamentals Learn Computer Graphics Learn Computer Logical Organization Learn Cryptography Learn Computer Networking Learn Data Mining Learn Distributed DBMS Learn Data Warehousing Learn DBMS Learn Digital Image Processing Learn Digital Signal Processing Learn Discrete Mathematics Learn Embedded Systems Learn E-Commerce Learn Extreme Programming Learn Estimation Techniques Learn Genetic Algorithms Learn Graph Theory Learn Human Computer Interface Learn Information Security Cyber Law Learn Internet Technologies Learn Java Digital Image Processing Learn Management Information System Learn Mobile Computing Learn OOAD Learn Operating System Learn Parallel Computer Architecture Learn Parallel Algorithm Learn Power Electronics Learn Software Development Life Cycle Learn Signals and Systems Learn Software Architecture Design Learn Software Engineering Learn VLSI Design

Web Development Learn HTTP Learn MVC Framework Learn Sass Learn Less Learn Web Services Learn RESTful Learn Web Icons Learn WebSockets Learn RSS Learn IPv4 Learn IPv6 Learn SOAP Learn SVN Learn UDDI Learn CherryPy Learn A/B Testing Learn Aurelia Learn BackboneJS Learn CodeIgniter Learn CoffeeScript Learn cPanel Learn Drupal Learn Django Learn EmberJS Learn ExpressJS Learn Flask Learn Flex Learn Foundation Learn Grav Learn Grunt Learn Gulp Learn GWT Learn Joomla Learn JSF Learn KnockoutJS Learn Magento Learn Material Design Lite Learn Materialize Learn MooTools Learn Pure.CSS Learn ReactJS Learn Ruby on Rails Learn TurboGears Learn VBScript Learn Web Developers Guide Learn Web2py Learn WebGL Learn WebRTC Learn WordPress Learn XHTML Web Building Web Building Web Statistics Apache Tutorials Learn Apache Ant Learn Apache POI Learn Apache POI PPT Learn Apache POI Word Learn Apache TIKA Learn Apache Xerces Learn Apache Flume Learn Apache Impala Learn Apache Pig Learn Apache Spark Learn Apache Storm Learn Apache Kafka MISC Tutorials Learn Drools Learn DLL Learn Git Learn Gradle Learn GDB Debugger Learn ITIL Learn JBoss Fuse Learn Makefile Learn Parrot Learn KDB+ Learn Radius Learn UML Learn Unix Socket

JAVA Technologies Learn Java Learn Java 8 Learn JSP Learn JDB Learn JDBC Learn Java XML Learn Spring Learn Struts 2 Learn Hibernate Learn Maven Learn Lucene Learn Servlets Learn SWING Learn jMeter Learn Jackson Learn JUnit Learn JavaMail API Learn EJB Learn Guava Learn iBATIS Learn jBPM5 Learn JFreeChart Learn JOGL Learn JPA Learn log4j Learn XStream Learn EasyMock Learn Eclipse Learn Design Patterns Microsoft Learn ASP.NET Learn ASP.NET MVC Learn ASP.NET WP Learn Batch Script Learn Entity Framework Learn NHibernate Learn LINQ Learn MFC Learn Microsoft Azure Learn MS Project Learn MicroStrategy Learn MS SQL Server Learn MVVM Learn Silverlight Learn VB.Net Learn WCF Learn WPF Learn XAML Learn Windows 10 Development Learn Windows 10 Learn Word Learn Excel Learn Excel Charts Learn Advanced Excel Learn Powerpoint Software Quality Learn Concordion Learn Continuous Integration Learn Cucumber Learn Jenkins Learn Database Testing Learn CMMI Learn ETL Testing Learn Mockito Learn Mobile Testing Learn Penetration Testing Learn Network Security Learn QC Learn QUnit Learn QTP Learn RSpec Learn SAP Testing Learn Security Testing Learn Selenium Learn Six Sigma Learn Software Testing Dictionary Learn Software Testing Learn Wireless Security Learn Computer Security Learn Internet Security

In the previous chapters, we have discussed SSBSC modulation and demodulation. Pulse width modulation techniques ppt SSBSC modulated signal has only one sideband frequency. Pulse width modulation pdf Theoretically, we can get one sideband frequency component completely by using an ideal band pass filter. Pulse width modulation ppt However, practically we may not get the entire sideband frequency component.

Pulse width modulation lab manual Due to this, some information gets lost.

To avoid this loss, a technique is chosen, which is a compromise between DSBSC and SSBSC. What is pulse width modulation This technique is known as Vestigial Side Band Suppressed Carrier (VSBSC) technique. How does pulse width modulation work The word “vestige” means “a part” from which, the name is derived.

VSBSC Modulation is the process, where a part of the signal called as vestige is modulated along with one sideband. Pulse width modulation circuit using 555 timer The frequency spectrum of VSBSC wave is shown in the following figure.

Along with the upper sideband, a part of the lower sideband is also being transmitted in this technique. Pulse width modulation using 555 timer ic Similarly, we can transmit the lower sideband along with a part of the upper sideband. Pulse width modulation 555 A guard band of very small width is laid on either side of VSB in order to avoid the interferences. Sine triangle pulse width modulation VSB modulation is mostly used in television transmissions.

We know that the bandwidth of SSBSC modulated wave is $f_m$. Pulse width modulation theory pdf Since the VSBSC modulated wave contains the frequency components of one side band along with the vestige of other sideband, the bandwidth of it will be the sum of the bandwidth of SSBSC modulated wave and vestige frequency $f_v$.

The most prominent and standard application of VSBSC is for the transmission of television signals. Pulse width modulation led dimming Also, this is the most convenient and efficient technique when bandwidth usage is considered.

In this method, first we will generate DSBSC wave with the help of the product modulator. Pulse width modulation nptel Then, apply this DSBSC wave as an input of sideband shaping filter. Types of pulse width modulation techniques This filter produces an output, which is VSBSC wave.

The modulating signal $m\left ( t ight )$ and carrier signal $A_c \cos \left ( 2 \pi f_ct ight )$ are applied as inputs to the product modulator. Pulse width modulation using ic 555 Hence, the product modulator produces an output, which is the product of these two inputs.

Let the transfer function of the sideband shaping filter be $H\left ( f ight )$. What is pulse width modulation pwm This filter has the input $p\left ( t ight )$ and the output is VSBSC modulated wave $s\left ( t ight )$. Pulse width modulation labview The Fourier transforms of $p\left ( t ight )$ and $s\left ( t ight )$ are $P\left ( t ight )$ and $S\left ( t ight )$ respectively.

Demodulation of VSBSC wave is similar to the demodulation of SSBSC wave. Theory of pulse width modulation and demodulation Here, the same carrier signal (which is used for generating VSBSC wave) is used to detect the message signal. Pulse width modulation circuit pdf Hence, this process of detection is called as coherent or synchronous detection. Carrier based pulse width modulation The VSBSC demodulator is shown in the following figure.

In this process, the message signal can be extracted from VSBSC wave by multiplying it with a carrier, which is having the same frequency and the phase of the carrier used in VSBSC modulation. Pulse width modulation waveform The resulting signal is then passed through a Low Pass Filter. Pulse width modulation for power converters principles and practice download The output of this filter is the desired message signal.

In the above equation, the first term represents the scaled version of the desired message signal frequency spectrum. Use of pulse width modulation It can be extracted by passing the above signal through a low pass filter.

Leave a Reply

Your email address will not be published. Required fields are marked *