نتایج جستجو برای: filter devices
تعداد نتایج: 319465 فیلتر نتایج به سال:
We present a hybrid optical filter design that combines interference and absorbing components for enhanced fluorescence detection in miniaturized highly-integrated lab-on-a-chip devices. The filter is designed in such a way that the advantages of each technology are used to offset the disadvantages of the other. The filter is fabricated with microfabrication compatible processes and materials f...
The paper presents a family of novel switched smart filter compensated devices using Green Plug Smart Filter Soft Starter GP-SF-SS devices for small single phase induction motors used in air-conditioning, ventilation and water pumping. GP-SFSS devices are equipped with a dynamic online error driven optimally tuned modified PID controller that ensures improved power factor, reduced feeder losses...
Cochlea devices are powered up with the help of batteries and they should possess long working life to avoid replacing of devices at regular interval of years. Hence the devices with low power consumptions are required. In cochlea devices there are numerous filters, each responsible for frequency variant signals, which helps in identifying speech signals of different audible range. In this pape...
Unauthorized Bluetooth devices or rogue devices can impersonate legitimate devices through address and link key spoofing. Moreover, they can infiltrate a Bluetooth network and initiate other forms of attacks. This paper investigates a novel intrusion detection approach, which makes use of radio frequency fingerprinting (RFF) for profiling, Hotelling’s T 2 statistics for classification and a dec...
Wavelength selective filters represent one of the key elements for photonic integrated circuits (PIC) and many of their applications in linear and non-linear optics. In devices optimised for single polarisation operation, cross-polarisation scattering can significantly limit the achievable filter rejection. An on-chip filter consisting of elements to filter both TE and TM polarisations is demon...
Composting and vermicomposting are two efficient methods to recycle organic wastes. In order to investigate the structural changes in organic matter during the composting and vermicomposting processes, cattle manure and filter-cake of sugar cane were incubated with and without earthworm's presence in a controlled temperature and moisture condition for 16 weeks. Compound samples were taken at 0,...
1 Basics of Noise Reduction ......................................2 2 Noise Reduction on the SC140 Core ......................5 2.1 Fast Fourier Transform ...........................................5 2.2 Logarithmic Function ..............................................7 2.3 Exponential Function ..............................................7 2.4 Low-Pass Filter ..................................
Passive all-fiber edge filter based devices are very often used for wavelength demodulation system for many sensors such as fiber Bragg gratings. The advantage of passive linear edge filter systems are their low cost, ease of fabrication and high measurement speed compared to active wavelength measurement systems. The accuracy and resolution of a fiber edge filter based wavelength measurement s...
In this paper, we first review in detail the basic building blocks of reconfigurable devices, essentially, the fieldprogrammable gate arrays (FPGAs), then we describes a highspeed, reconfigurable, Systolic FIR filter design implemented in the Virtex-II series of FPGAs. The VHDL description of this filter is used for simulation and EDIF for implementation using Xilinx's place and route tools. Th...
Discrete-time signal processing (DSP) tools have been used to analyze numerous optical filter configurations in order to optimize their linear response. In this paper, we propose a DSP approach to design nonlinear optical devices by treating the desired nonlinear response in the weak perturbation limit as a discrete-time filter. Optimized discrete-time filters can be designed and then mapped on...
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