Figure l(b) shows the wavelength-dependent time delay under different stretching voltages. The slope of the curve (i.e., the dispersion) at the operating laser wavelength can be changed by varying the PZT voltage. This grating enables compensation of dispersion accumulated for various distances as well as the dispersion accumulated in multiple subcarriers. Figures 2(a) and 2(b) show the effect ...

As in the case of Smith predictor, when applied to dynamical systems with delay input, stability internal model control (IMC) system can be very sensitive mismatch that occur between plant and identified delay. In this paper, we propose an online identification technique for input delay, which is used adapt IMC controller designed reject periodic disturbances consisting two harmonics. The propo...

Fault detection in robotic manipulators is necessary for their monitoring and represents an effective support to use them as independent systems. This present study investigates enhanced method representation of the faultless system behavior a robot manipulator based on multi-layer perceptron (MLP) neural network learning model which produces same real dynamic manipulator. The was generation re...

This paper considers the identification and fuzzy controller design for nonlinear uncertain systems in presence of unknown input time-delay. Firstly, a time-delay Takagi-Sugeno-Kang (TSK) type fuzzy neural system (TDFN) is proposed to identify a class of nonlinear input time-delay systems. The input-output signals of nonlinear systems are used to identify the system dynamics and unknown time-de...

Long-term memory prediction extends the spatial displacement vector utilized in hybrid video coding by a variable time delay permitting the use of more than one reference frame for motion compensation. This extension provides improved rate-distortion performance. However, motion compensation in combination with transmission errors leads to temporal error propagation that occurs when the referen...

We experimentally demonstrate a novel technique to process broadband microwave signals, using all-optically tunable true time delay in optical fibers. The configuration to achieve true time delay basically consists of two main stages: photonic RF phase shifter and slow light, based on stimulated Brillouin scattering in fibers. Dispersion properties of fibers are controlled, separately at optica...