In this letter, we experimentally demonstrate Brillouin echoes-based distributed optical fiber sensing with centimeter spatial resolution. It is based on a differential phase-shift-keying technique ...

phase shift keying 1 Articles . Demodulating BPSK31 With OpAmps And 555s. December 29, 2014 by Brian Benchoff 16 Comments . BPSK31 is an extremely popular mode for amateur radio operators; it’s ...

It delivers 800G data rates for data center interconnect (DCI) and metro applications, while supporting 400G data rates in long-haul deployments using quadrature phase shift keying (QPSK) for ...

At a modulation speed of 10 Gb/s, higher order sidelobes are highly suppressed by more than 20 dB at the 20-GHz offset, comparing to a conventional binary phase-shift keying (BPSK). By the use of a ...

Phase-shift keying (PSK) is another popular example. When employing binary PSK, each symbol represents a 0 or 1 (see the table). A binary 0 equals 0°, while a binary 1 is 180°.

orbcomm-rx is a demodulator and decoder for the Orbcomm VHF Subscriber Transmitter (STX) downlink. Each satellite in the Orbcomm constellation transmits two STX carriers between 137-138 MHz. These ...