<span lang="EN-US">Gate diffusion input (GDI) is a technique, which enables reducing power consumption, area and delay in the digital circuits significantly, at same time maintains low complexity of logical design. This paper focuses on analysis interpretation design implementation GDI-based pipeline architecture for numerically controlled oscillator (NCO) using look up table (LUT). Based...

This paper compares two types of lookup table (LUT) structures useful for delay optimization in programmable devices. Realistic assumptions about the input-to-output delays in a LUT and the delays of routable and nonroutable connections are used. The conclusion is that the cluster LUT structure results in better delays compared to the cascade structure. This LUT structure leads to mapped networ...

This paper tells the technique for low power addition/subtraction of Logarithmic number system (LNS). Firstly, the impact of partitioning the look up tables (LUT) required for addition/subtraction on complexity, performance is studied. Two design parameters namely organisation of word and base are also taken into consideration. For addition and subtraction of LNS, MATLAB is also used to calcula...

Introduction: Despite growing interest in the use of magnetic resonance imaging (MRI) in the external radiotherapy design process (RT), Computer Tomography (CT) remains a gold standard and is regarded as a basic imaging modality in radiotherapy. MRI shows the high contrast in soft tissues without any radiation exposure to patients. As a result, MRI is used in functional tissue ...

Abstract Vicarious calibration coefficients ( k v ) of Second-generation GLobal Imager (SGLI) for ocean color processing were derived using in-situ radiometric buoy measurements from the Marine Optical BuoY (MOBY) and BOUée pour l'acquiSition d'une Série Optique à Long termE (BOUSSOLE). Two aerosol-model look up tables (LUTs) used in GCOM-C aerosol retrieval algorithm (LUT-A) previous version a...

A number of scientific applications are performance-limited by expressions that repeatedly call costly elementary functions. Lookup table (LUT) optimization accelerates the evaluation of such functions by reusing previously computed results. LUT methods can speed up applications that tolerate an approximation of function results, thereby achieving a high level of fuzzy reuse. One problem with L...

Scientific programmers can speed up function evaluation by precomputing and storing function results in lookup table (LUTs), thereby replacing costly evaluation code with an inexpensive memory access. A code transform that replaces computation with LUT code can improve performance, however, accuracy is reduced because of error inherent in reconstructing values from LUT data. LUT transforms are ...

In this paper we have proposed a look-up-table (LUT) based structure for high-throughput implementation of multilevel lifting DWT. The proposed structure can process one block of samples to achieve high-throughput rate. Compared with the best of the similar existing structure, it does not involves any multipliers but it requires more adders and 21504 extra ROM words for J=3; its offers less cri...

The main objective of this paper is to implement all digital modulation techniques into a single module and implement in a Field Programmable Gate Array (FPGA). The proposed system allows the user to select any one of four modulations without reconfiguring the FPGA. Carrier waveform for the modulator is generated using coordinate rotation digital computer CORDIC algorithm which uses shift, addi...

Tissue/flow detection is critical for high quality 2-D color flow image. The traditional tissue/flow detection method is based on one or several thresholds which are used for parameters after autocorrelation. Generally a lot of parameters: flow magnitude, variance and velocity are applied for tissue/flow detection. But this method may not distinguish tissue/flow because of moving tissue or nois...