As complementary to Synthetic Aperture Radar (SAR) Differential Interferometry (DInSAR), SAR Offset Tracking (OT) is an efficient tool for large ground deformation monitoring in situations when DInSAR cannot work. However, images are affected by speckle noise and some strong point-like scatters which can cause what known as Patch Like (PL), a kind of errors that be seen homogeneous patches almo...

A new algorithm to estimate amplitude, delay, phase, and frequency offset of a received signal is presented. The frequency-offset estimation is performed by maximizing, with respect to the conjugate cycle frequency, the projection of the measured conjugatecyclic-autocorrelation function of the received signal over the true conjugate second-order cyclic autocorrelation. It is shown that this est...

This paper analyzes the bit-error-rate (BER) performance of filter bank multicarrier systems with offset quadrature amplitude modulation (FBMC-OQAM) in the presence of phase offset. We consider that the FBMC intrinsic-interference has a Gaussian probability distribution, and we derive the BER analytical expressions for multilevel modulation (M-OQAM) over Rayleigh flat fading channels. Analytica...

Surface quality including surface roughness and edge chipping is a key process measure in micro ultrasonic machining (Micro-USM) as an efficient process for micromachining of hard and brittle materials. Process parameters such as ultrasonic vibration amplitude, static load, type of tool material, type and size of abrasive particles and slurry concentration can influence the surface quality. How...

In the present paper, the Zelt algorithm has been extended for ray tracing through an anisotropic model. In anisotropic media, the direction of the propagated energy generally differs from that of the plane-wave propagation. This makes velocity values to be varied in different directions. Therefore, velocity modeling in such media is completely different from that in an isotropic media. The vel...

In this paper we introduce a new method of carrier frequency offset estimation for Orthogonal Frequency Division Multiplexing (OFDM) communication systems. The method uses one or more pairs of adjacent subcarriers within an OFDM symbol. The pairs of subcarriers are modulated with equal amplitude and opposite polarity. In the absence of frequency offset, the received subcarrier pairs also have e...

Surface quality including surface roughness and edge chipping is a key process measure in micro ultrasonic machining (Micro-USM) as an efficient process for micromachining of hard and brittle materials. Process parameters such as ultrasonic vibration amplitude, static load, type of tool material, type and size of abrasive particles and slurry concentration can influence the surface quality. How...

Sometimes conventional feedback controllers may not perform well online because of the variation in process dynamics due to nonlinear actuators, changes in environmental conditions and variation in the character of the disturbances. To overcome the above problem, this paper deals with the designing of a controller for a second order system with Model Reference Adaptive Control (MRAC) scheme usi...