نتایج جستجو برای: direct digital synthesis

تعداد نتایج: 1109471  

1990
Barry A. Bell

Over the last decade the use of digital synthesis and sampling techniques for generating and measuring electrical waveforms has increased dramatically with the availability of improved digital-to-analog (D/A) and analog-to-digital (A/D) converters and related devices. With this evolution has come the need for physical laboratory standards and test methods to support the performance specificatio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده علوم 1388

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

Journal: :Journal of Agricultural Meteorology 1976

2015
Feng Feng Jiajia Chen

Computer Aided Design (CAD) tools are commonly adopted in the design, synthesis and simulation of digital circuits. Switch-level simulation, logic synthesis, timing analysis and architecture optimizations are essential CAD tools during digital IC design flow. However, the HDL coding, computation complexity and simulation time overhead makes the design turnaround time much longer. This drawback ...

Journal: :International Journal of Applied Mathematics, Electronics and Computers 2016

Journal: :IEEE Circuits and Systems Magazine 2019

Journal: :Nucleation and Atmospheric Aerosols 2022

Methods of digital signal processing in control and monitoring systems are relevant today largely replace the classic analog methods. This article discusses main methods synthesis appropriate devices, primarily filters.

Journal: :Architectural Design 2006

Journal: :The Journal of the Acoustical Society of America 1981

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