نتایج جستجو برای: ill posed problem

تعداد نتایج: 945831  

1999
Tomas Hruz

The main goal of our paper is to study the regularization problems which occur in predictive control of systems with severely ill-posed inverse model. We propose a new formulation of predictive control where the future controls are obtained as a solution of certain ill-posed inverse problem. This formulation leads to a possibility of closed loop on-line control of complex systems with ill-posed...

Journal: :iranian journal of science and technology (sciences) 2015
e. babolian

recently, in order to increase the efficiency of least squares method in numerical solution of ill-posed problems, the chain least squares method is presented in a recurrent process by babolian et al. despite the fact that the given method has many advantages in terms of accuracy and stability, it does not have any stopping criterion and has high computational cost. in this article, the attempt...

1993
J. F. TRAUB A. G. WERSCHULZ

The purpose of this paper is to bring a series of rather surprising results which have appeared in the technical literature to the attention of a wider audience. We describe the results informally here; precise definitions and results will be given below. Our subject is the solution of an ill-posed problem on a digital computer. Such a problem can at best only be solved approximately. We say a ...

Journal: :International Journal of Heat and Mass Transfer 1981

2013
Wang Lei Cai Chen

Node localization technology is one of the basic research fields in Wireless Sensor Networks (WSN) applications. The coordinates of the unknown nodes can be determined by the Least Square Estimate (LSE), which is commonly employed in the WSN node localization. Due to the influence of multi-path fading, the distance can be obtained from the Received Signal Strength Indicator (RSSI). But in the e...

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