Search results
Results from the WOW.Com Content Network
An optical DPSK demodulator is a device that provides a method for converting an optical differential phase-shift keying (DPSK) signal to an intensity-keyed signal at the receiving end in fiber-optic communication networks. It is also known as delay line interferometer (DLI), or simply called DPSK demodulator.
Because the symbols are encoded in the difference in phase between successive samples, this is called differential phase-shift keying (DPSK). DPSK can be significantly simpler to implement than ordinary PSK, as it is a 'non-coherent' scheme, i.e. there is no need for the demodulator to keep track of a reference wave.
Language links are at the top of the page across from the title.
AOL Mail welcomes Verizon customers to our safe and delightful email experience!
The State Department has opened an online passport renewal portal, allowing a limited number of Americans to submit an application online. The department is conducting a trial for the renewal ...
Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.
Login.gov is a single sign-on solution for US government websites. [1] It enables users to log in to services from numerous government agencies using the same username and password. Login.gov was jointly developed by 18F and the US Digital Service . [ 1 ]
"I said to Allison, let's just go, I can't take this anymore, it's too stressful," MacMahon says. "I told him, 'No, we have to stay, we have to know one way or the other,'" McGourty says. "Then ...