Found 189 Articles for Signals and Systems

Satellite communication is a sort of remote communication. Satellite communication is the method of sending and accepting information or data from one point on earth to another point through a satellite. This innovation has been broadly utilized for an assortment of applications such as television broadcasting, climate forecasting, navigation, military communication, and many others. It has gotten to be a necessary portion of present-day communication systems, empowering moment worldwide communication. In this article, we'll talk about the focal points and drawbacks of satellite communication. What is Satellite Communication ? Satellite communication refers to the utilize of manufactured satellites in orbit ... Read More

Repeater is an electronic device that receives a signal to increase its power and retransmit it. They are used for long-distance transmission or received on the other side. We know Networking Architecture has a 7-layer OSI model, where repeaters and devices come at the physical layer. Repeaters are also called Signal boosters. They are cheap and easy solutions for a network device that has no impact on the performance of the network. They are useful in boosting the signal and retransmitting the signal from the transmitter to the receiver. During transmission, certain signals get lost and distorted. Repeaters are connected ... Read More

NTSC and ATSC are two different broadcasting standards for television signals. The acronyms NTSC and ATSC stand for National Television System Committee and Advanced Television Systems Committee, respectively. The main difference between NTSC and ATSC is how television transmissions are encoded and transmitted. Read this article to find out more about NTSC and ATSC and how they are different from each other. What is NTSC? The NTSC (National Television System Committee) standard for analogue television broadcasting was first launched in the United States in 1941. The standard was created by the National Television System Committee, a group of engineers from ... Read More

The Cellular device has evolved a lot and it has become part of everyone’s life as a hands − on device. Now, most people are access to mobile technology that uses Global Standard for Mobile Communication which is termed wireless mobile communication. The First designed Mobile phones use radio waves. Cellular communication comes under the network technology comprising cells and base stations. The usage of it is by dividing the area into smaller cells and reusing the frequency. In this article, we will study the concept of the Traditional Wireless Mobile Communication. The Traditional analog system is designed for the ... Read More

The both types of audio signals can be used for various purposes. Wet signals or sounds are much richer and have more depth to them. Dry signals or sounds are more shallow and lack the richness of wet signals or sounds. This is because wet signals or sounds have been soaked in reverb, which gives them a lusher sound. Dry signals or sounds have not been soaked in reverb, so they sound more like they are coming from a dry place. In general, effects can categorize into three groups, they are: frequency based, time based, and dynamics based. Reverb time ... Read More

An electrical or electromagnetic quantity (current, voltage, radio wave, micro wave, etc.) that carries data or information from one system (or network) to another is called a signal. Two basic types of signals are used for carrying data, viz. analog signal and digital signal.Analog and digital signals are different from each other in many aspects. One major difference between the two signals is that an analog signal is a continuous function of time, whereas a digital signal is a discrete function of time.This article explains all the significant differences between analog and digital signals along with a brief description of ... Read More

The full form of RFID is Radio-frequency identification. It is the wireless non-contact use of radio-frequency electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects.RFID transmits information from RFID tags to RFID readers. As in, the data is communicated with a system that contains RFID tags, an antenna, an RFID reader, and a transceiver.RFID is one method of automatic identification and data capture (AIDC). This tag can read from up to several feet away and doesn’t require to be within direct line-of-sight of the reader to be tracked.Below is an example diagram ... Read More

General Packet Radio Service (GPRS) is the packet and data transfer service on the 2G and 3G wireless networks used for the global communications in the mobile systems. GPS allows the continuous connections of the Internet to mobile phones and handheld devices. It is based on the GSM services which used existing services such as the SMS and circuit-switched phone networks and connections.FeaturesThe features of GPRS are as follows −Data rates of 56 kbps to a maximum of 114 kbpsSMS message servicesInternet access with always-on featuresMMS messagingUse of instant messaging on handheld devicesPoint to point / multipoint servicesThe architecture of ... Read More

The full form of VANET is Vehicular Adhoc Network. It is the subclass of network of MANET type whereas the full form of MANET is Mobile Adhoc Network. In this, all nodes can be interfaced dynamically in arbitrary fashion.MANET featuresThe features are as follows −It supports Dynamic topologiesIt supports Energy constraint operationIt has Variable capacity links.Here is an example picture of MANET −VANET featuresThe features are as follows −Cellular and WLAN networkHybridPure Ad hocHere is the example picture of VANET −DifferencesThe differences between the MANETs with VANETs are as follows −ParametersMANETSVANETSDynamic TopologiesThe topologies change is slow.The topology change is very ... Read More

Let us learn the concepts of Fastag and Near Field Communication (NFC).Fast TagFASTag is an electronic scanner system used for toll collection in India, which is operated by the National Highway Authority of India.It incorporates the Radio Frequency Identification (RFID) technology for doing toll payments either prepaid or from savings accounts which are linked to it or directly toll owner.The RFID enabled sticker which is fixed to a vehicle’s windshield, and a reader at the toll booth are used to scan this card and wirelessly and automatically processes the payment.When we pass a FASTag-enabled toll plaza, we don’t need to ... Read More