PSK
Short for phase-shift keying, a modulation technique used by modems in which different phase angles in the carrier signal are used to represent the binary states of 0 and 1.
The simplest method of PSK, also called biphase modulation, uses two signal phases - 0 degrees and 180 degrees. The digital signal is broken up according to time into binary digits and the state (1 or 0) of each bit is determined according the state of the bit that preceded it. If the phase of the bit does not change then the state of the signals stays the same. If the phase of the signal changes by 180 degrees, then the signal state changes (from 0 to 1, or 1 to 0).
There are more complex forms of PSK that rely on four or eight phases to transmit data at a faster rate.
Compare with FSK.
Featured Partners Sponsored
-
1
private cloud project
Companies initiate private cloud projects to enable their IT infrastructure to become more capable of quickly adapting to continually evolving...
-
2
cloud backup
A cloud backup (cloud computer backup) refers to backing up data to a remote, cloud-based server. As a form of cloud storage, cloud backup data is...
-
-
3
mobile operating system
The mobile operating system is the software platform on top of which other programs, called application programs, can run on mobile devices.
-
4
big data
A catch-phrase, used to describe a massive volume of both structured and unstructured data that is so large that it's difficult to process with...
-
5
enterprise application
An enterprise application is the term used to describe applications -- or software -- that a business would use to assist the organization in...
-
6
private cloud
The phrase used to describe a cloud computing platform that is implemented within the corporate firewall, under the control of the IT department....
-
7
BYOD - bring your own device
A phrase that has become widely adopted to refer to mobile workers bringing their own mobile devices, such as smartphones, laptops and PDAs, into...
-
8
consumerization of IT
Consumerization of IT is a phrase used to describe the cycle of information technology (IT) emerging in the consumer market then spreading to...
-
9
CRM - Customer Relationship Management
Short for customer relationship management, CRM entails all aspects of interaction a company has with its customer, whether it be sales or service...
-
10
ERP - Enterprise Resource Planning
Short for enterprise resource planning, ERP is business management software that allows an organization to use a system of integrated applications...
Connect with Webopedia
-
-
Android Apps for Remote Computer Access
Remote access is useful when you need to collaborate with co-workers, help a friend with PC problems or grab files from your desktop.
