A robust correlation receiver for distance estimation

A Robust OFDM Receiver for DSRC Systems

OFDM PHY has been selected as North American DSRC standard (IEEE 802.11p). In this paper, we present a robust OFDM receiver suitable for DSRC systems. A synchronizer, a one-tap frequency domain equalizer (FDE), a pilot-based phase estimator and a Viterbi decoder mainly compose it. The equalizer uses normalized least-mean-square (NLMS) algorithm to track not only the variation of the DSRC channe...

Robust Minimum Distance Estimation for Nonlinear Semi-Strong GARCH Models

We develop a class of Minimum Distance Estimators for semi-strong Nonlinear ARMAX-Nonlinear GARCH processes. The estimators are asymptotically normal for possibly very heavy-tailed data due to underlying shocks and/or model parameter values. In particular we only impose trivial moment conditions on the GARCH errors, covering non-stationary GARCH. The MDE class is couched within a Method of Mome...

channel estimation for mimo-ofdm systems

تخمین دقیق مشخصات کانال در سیستم های مخابراتی یک امر مهم محسوب می گردد. این امر به ویژه در کانال های بیسیم با ‏خاصیت فرکانس گزینی و زمان گزینی شدید، چالش بزرگی است. مقالات متعدد پر از روش های مبتکرانه ای برای طراحی و آنالیز ‏الگوریتم های تخمین کانال است که بیشتر آنها از روش های خاصی استفاده می کنند که یا دارای عملکرد خوب با پیچیدگی ‏محاسباتی بالا هستند و یا با عملکرد نه چندان خوب پیچیدگی پایینی...

An iterative approach for estimation of efficiency by weighted distance

Dynamic consistent correlation-variational approach for robust optical flow estimation

We present in this paper a novel combined scheme dedicated to the measurement of velocity in fluid experimental flows through image sequences. The proposed technique satisfies the Navier–Stokes equations and combines the robustness of correlation techniques with the high density of global variational methods. It can be considered either as a reenforcement of fluid dedicated opticalflow methods ...