For linear dynamic systems with white process and measurement noise, the Kalman filter is known to be an optimal estimator. In the application of Kalman filters there is often known model or signal information that is either ignored or dealt with heuristically [1]. This work presents a way to generalize the Kalman filter in such a way that known relations among the state variables (i.e., state ...

In this paper, we propose a fast algorithm to realize parallel median filter for processing 1-D and 2-D signal. In the proposed pipelined architecture, m-passes are employed for filtering signal while word resolution is m bits. One pass employs one processing element (PE), and the number of PEs is independent of the number of samples. Therefore, we only need m PEs for real-time operation. With ...

Solar panels have been improving in efficiency and dropping in price, and are therefore becoming more common and economically viable. However, the performance of solar panels depends not only on the weather, but also on other external factors such as shadow, dirt, dust, etc. In this paper, we describe a simple and practical data-driven method for classifying anomalies in the power output of sol...

introduction: in electroplating processes, hexavalent chromium mist is emitted in air. hexavalent chromium mist can cause lung cancer and nasal septum in workers. as permissible exposure limit (pel) of hexavalent chromium is low (0.5 µg/m 3 ) and it is used in various industries, evaluation of workers exposure to hexavalent chromium is very important. however, hexavalent chromium is relatively ...

introduction: one of the main complications of hemodialysis in patients with chronic renal failure is hypoxemia which is related to several factors including the type of filter. the aim of this study was to evaluate the hypoxemia levels in patients undergoing hemodialysis with focus on the type of filter. methods: in a crossover clinical trial, 29 patients from emodialysis ward of fatemieh hosp...

Digital multistage sampling rate conversion has many engineering applications in fields of signal and image processing, which is to adapt the sampling rates to the flows of diverse audio and video signals. The FIR (Finite Impulse Response) polyphase sampling rate converter is one of typical schemes that are suitable for interpolation or decimation by an integer factor. It also guarantees the st...

In this paper, a generalised spline filter, that has a unified description for both the linear spline filter and the nonlinear robust spline filter, is proposed. Based on the M-estimation theory, the general spline filter model can be solved by using an Iterated Reweighted Least Squared method which is also general for both the linear and nonlinear spline filter. The algorithm has been verified...

Removal of benzene, toluene, and xylenes (BTX) from waste gases was studied in a 50-L laboratory-scale biofilter (25.2 cm I.D. and 100 cm H). A commercial blend of composted chicken manure and peat moss was used as the filter bed. The composted organic material was selected due to its relatively high microbial diversity and for its nutritive value (i.e. presence of N-sources and essential miner...

This paper proposes real-time interactive systems illuminating your shadows cast on the floor, which we name “Graphic Shadow.” They will make you experience an exciting space of interaction performing an illusion on your own shadow.