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One example of an analog delay line is a bucket-brigade device. [1] Other types of delay line include acoustic (usually ultrasonic), magnetostrictive, and surface acoustic wave devices. A series of resistor–capacitor circuits (RC circuits) can be cascaded to form a delay. A long transmission line can also provide a delay element. The delay ...
A digital delay line (or simply delay line, also called delay filter) is a discrete element in a digital filter, which allows a signal to be delayed by a number of samples. Delay lines are commonly used to delay audio signals feeding loudspeakers to compensate for the speed of sound in air, and to align video signals with accompanying audio ...
A delay line interferometer (DLI) can be a Mach–Zehnder interferometer or Michelson interferometer based on two-beam interference, in which one beam is time-delayed to the other by a desired interval. Delay line interferometers are also known as optical DPSK demodulators. They convert a phase-keyed signal into an amplitude-keyed signal.
Delay line may refer to: . Propagation delay, the length of time taken for something to reach its destination; Analog delay line, used to delay a signal; Bi-directional delay line, a numerical analysis technique used in computer simulation for solving ordinary differential equations by converting them to hyperbolic equations
A bucket brigade or bucket-brigade device (BBD) is a discrete-time analogue delay line, [1] developed in 1969 by F. Sangster and K. Teer of the Philips Research Labs in the Netherlands. It consists of a series of capacitance sections C 0 to C n. The stored analogue signal is moved along the line of capacitors, one step at each clock cycle.
A digital delay generator (also known as digital-to-time converter) is a piece of electronic test equipment that provides precise delays for triggering, syncing, delaying, and gating events. These generators are used in many experiments, controls, and processes where electronic timing of a single event or multiple events to a standard timing ...
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It is also known as delay line interferometer (DLI), or simply called DPSK demodulator. Working principle of optical DPSK demodulation: (a) Incoming DPSK signal with uniform intensity, (b) 1-bit delay of the incoming DPSK signal with uniform intensity, and (c) Demodulated intensity signal after interference between (a)/(a′) and (b)/(b′).
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