This note calculates the requirements on the anti-aliasing filter for the read-out of the fluorescence detector of the AUGER experiment. The filter order and its cut-off frequency are related to the error in amplitude reconstruction. 1 System transfert functions The Fluorescence Detector read-out channel consist of a current preamplifier followed by a low pass anti-aliasing filter and a samplin...

The Modal Assurance Criterion (MAC) has been used as a measure of correlation between measured and predicted mode shapes for many years. However, since the MAC only considers the mode shape correlation, both an auto-MAC plot (to assess the degree of spatial aliasing) and a natural frequency comparison plot are usually required in order to determine the overall correlation/correspondence of the ...

A new technique is proposed to reduce the computational complexity of the multiple signal classification (MUSIC) algorithm for direction-of-arrival (DOA) estimate using a uniform linear array (ULA). The steering vector of the ULA is reconstructed as the Kronecker product of two other steering vectors, and a new cost function with spatial aliasing at hand is derived. Thanks to the estimation amb...

Introduction: Breast cancer is the most prevalent type of cancer and the second leading cause of mortality amongst Canadian women [1]. Regular mammography screening is currently the best method of early detection. Recently, a 10-year study of the Ontario Breast Screening Program revealed that not all screening centers are the same [2]. In particular, sites with digital x-ray detectors that acqu...

Multi-view autostereoscopic displays can be considered as a kind of a multirate system due to the construction compromise between the number of different views and spatial resolution adopted for such displays. Images to be visualized on these displays are prone to aliasing errors. Careful antialiasing requires knowledge about the display frequency response, which is determined mainly by the vie...

An anti-aliasing filter that incorporates a sampler is proposed to precede noise-shaping analog-to-digital converters (ADCs), such as discrete-time ΔΣ modulators. The architecture of the proposed anti-aliasing filter is inspired by the implicit antialiasing filtering property of CT ΔΣ modulators. However, contrary to CT ΔΣ modulators, the proposed anti-aliasing filter is not sensitive to clock ...

Current digital imaging devices often enable the user to capture still frames at a high spatial resolution, or a short video clip at a lower spatial resolution. With bandwidth limitations inherent to any sensor, there is clearly a tradeoff between spatial and temporal sampling rates, which can be studied, and which present-day sensors do not exploit. The fixed sampling rate that is normally use...