نتایج جستجو برای: estimation error can be neglected finally
تعداد نتایج: 5408238 فیلتر نتایج به سال:
This paper establishes that so-called instrumental variables enable the identification and the estimation of a fully nonparametric regression model with Berkson-type measurement error in the regressors. An estimator is proposed and proven to be consistent. Its practical performance and feasibility are investigated via Monte Carlo simulations as well as through an epidemiological application inv...
this paper presents a new multi-sensor data fusion method based on the combination of wavelettransform (wt) and extended kalman filter (ekf). input data are first filtered by a wavelettransform via daubechies wavelet “db4” functions and the filtered data are then fused based onvariance weights in terms of minimum mean square error. the fused data are finally treated byextended kalman filter for...
Abstract— In OFDM based single frequency networks (SFNs) used in digital audio broadcasting (DAB) and digital video broadcasting (DVB) the received signal can be a superposition of multiple useful and interfering lognormal components. In many cases considerable correlations exist among these components. These correlations are typically neglected in the system analysis. In this paper we show tha...
Wideband sparse spectral estimation is generally formulated as a multi-dictionary/multi-measurement (MD/MM) problem which can be solved by using group sparsity techniques. In this paper, the MD/MM problem is reformulated as a single sparse indicative vector (SIV) recovery problem at the cost of introducing an additional system error. Thus, the number of unknowns is reduced greatly. We show that...
پرستاری از بیمار مبتلا به بیماری آلزایمر چندان ساده نیست. حتی اگر از این امر که اختلال رفتاری فرد نشانه ای از بیماری اوست، آگاه باشید، اکثر مواقع نمی دانید که چگونه باید با او رفتار کنید. در این مقاله روشهای مناسبی ارائه گردیده تا خانواده بیمار بتواند با ۱۰ اختلال رفتاری شایع در بیماران مبتلا بدون احساس ناامیدی و خشم سازگاری یابند.
Surface-mount permanent-magnet synchronous motor(SPMSM) has been widely applied in accurate motion control. In this paper, the SPMSM model is divided into electrical magnetic subsystem and electrical mechanical subsystem. Then a novel error model is given by which the controllers can be designed easily. In the general PMSM controllers design, the unknown load is often neglected. In this paper, ...
One of the instruments for determination of position used in several applications is the Global Positioning System (GPS). With a cheap GPS receiver, we can easily find the approximate position of an object. Accuracy estimation depends on some parameters such as dilution of precision, atmospheric error, receiver noise, and multipath. In this study, position accuracy with GPS receiver is classifi...
In risk analysis based on Bayesian framework, premium calculation requires specification of a prior distribution for the risk parameter in the heterogeneous portfolio. When the prior knowledge is vague, the E-Bayesian and robust Bayesian analysis can be used to handle the uncertainty in specifying the prior distribution by considering a class of priors instead of a single prior. In th...
The estimation of situation in a combinational navigation GPS/INS with least number of satellites is the main purpose of this paper. As inertial measurement unit uses altimeter for height measurement, we can assume which height poses certain amounts, whereas geographical length and width are unknown to us in this paper. The single difference GPS is employed for updating the inertial navigation ...
Accurate alignment and vertical channel instability play an important role in the strap-down inertial navigation system (SINS), especially in the case that precise navigation has to be achieved over long periods of time. Due to poor initialization as well as the cumulative errors of low-cost inertial measurement units (IMUs), initial alignment is not sufficient to achieve required navigation ac...
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