scholarly journals High Performance Novel Square Root Architecture Using Ancient Indian Mathematics for High Speed Signal Processing

2015 ◽  
Vol 05 (08) ◽  
pp. 428-441 ◽  
Author(s):  
Arindam Banerjee ◽  
Aniruddha Ghosh ◽  
Mainuck Das
Author(s):  
Mr.M.V. Sathish ◽  
Mrs. Sailaja

A new architecture of multiplier-andaccumulator (MAC) for high-speed arithmetic. By combining multiplication with accumulation and devising a hybrid type of carry save adder (CSA), the performance was improved. Since the accumulator that has the largest delay in MAC was merged into CSA, the overall performance was elevated. The proposing method CSA tree uses 1’s-complement-based radix-2 modified Booth’s algorithm (MBA) and has the modified array for the sign extension in order to increase the bit density of the operands. The proposed MAC showed the superior properties to the standard design in many ways and performance twice as much as the previous research in the similar clock frequency. We expect that the proposed MAC can be adapted to various fields requiring high performance such as the signal processing areas.


2013 ◽  
Vol 321-324 ◽  
pp. 1241-1244
Author(s):  
Yang Jian ◽  
Yu Hao Liu ◽  
Xi Jing Zhao ◽  
Hao Ming Chen

With the development and application of technique on high speed digital signal processing, wide bandwidth processing, high-speed data exchanging and flexible interlink structure have been the developing trend of modern high performance signal processing machine. In this paper, one universal signal processing machine is designed based on six pieces of ADSP-TS201 TigerSHARC processors, which owns good characteristics such as: large memory, excellent processing and data-exchanging performance, reconstitution, good expansibility. This signal processing machine adopts 64Bit, 66MHz CPCI bus standard and supports the function of extending processing performance by interlinking multiple boards. The high-speed data-exchanging is realized with multiple channel optical fiber. Furthermore, it owns board-level BIT function.


2016 ◽  
Vol 05 (04) ◽  
pp. 1602002 ◽  
Author(s):  
D. C. Price ◽  
J. Kocz ◽  
M. Bailes ◽  
L. J. Greenhill

Advances in astronomy are intimately linked to advances in digital signal processing (DSP). This special issue is focused upon advances in DSP within radio astronomy. The trend within that community is to use off-the-shelf digital hardware where possible and leverage advances in high performance computing. In particular, graphics processing units (GPUs) and field programmable gate arrays (FPGAs) are being used in place of application-specific circuits (ASICs); high-speed Ethernet and Infiniband are being used for interconnect in place of custom backplanes. Further, to lower hurdles in digital engineering, communities have designed and released general-purpose FPGA-based DSP systems, such as the CASPER ROACH board, ASTRON Uniboard, and CSIRO Redback board. In this introductory paper, we give a brief historical overview, a summary of recent trends, and provide an outlook on future directions.


2020 ◽  
Author(s):  
Hari Krishna Modalavalasa

The multiplication and accumulation are the vital operations involved in almost all the Digital Signal Processing applications. With the advent of new technology in the domain of VLSI, communication and signal processing, there is an ever going demand for the high speed processing and low area design. In today's technology, Add-Multiply (AM) operator or Multiply Accumulator (MAC) units are generally employed in all high performance digital signal processors (DSP) and controllers. The performance of AM operator mainly depends on the speed of multiplier. A lot of research has been contributed in this area and the conventional multipliers were modified to provide good speed performance but needs to be improved further along with area optimization. Urdhwa-Tiryakbhyam Multiplier (UTM) architecture is adopted from ancient Indian mathematics "Vedas’ and can generate the partial products and sums in one step, which reduces the carry propagation from LSB to MSB. UTM can be used to implement high performance AM operators but results in larger silicon areas. This increased area can be minimized by using the modified compressor based design of UTM. In this work, the carrylook-ahead (CLA) adder is adopted instead of parallel adders for high speed of accumulation. So, the Compressor-Based-Urdhwa-Tiryakbhyam (CB-UT) multiplier with CLA results in both area and performance optimization of Add-Multiply operator. The functionality of this architecture is evaluated by comparing with the Modified Booth (MB) multiplier based AM operator in terms of performance parameters like propagation delay, power consumption and silicon-area. The design is implemented and verified using Xilinx Spartan-3E FPGA and ISE Simulator.


2018 ◽  
Vol 7 (2.32) ◽  
pp. 243
Author(s):  
U Penchalaiah ◽  
Siva Kumar VG

A recent years of technology development in Signal processing application a FIR (Finite impulse response) filter design will have a highly compactable with high performance and low power in all digital signal processing application, such as audio processing, signal processing, software define radio and so on. Now a days in our environment will have more signal noises, and fluctuation due to technology development, here the Filter design is mainly configuring the priority to reduce the signal noises and fluctuation in all type of gadgets. In this project, the design contains Transpose form of high performance and high speed filter design using finite impulse response (FIR) filter with technique of pipelined inherently and supported multiple constant multiplication (MCM) in significant with saving power computation. In digital signal processing, the multiplier is a highly required thing, the example of parallel multiplier provide a high-speed and highly reliable method for multiplication, but this parallel multiplier will take large area and also power consumption. In the FIR filter design, multiplier and adders is the maximum priority will take to give the performance, but this MCM multiplier and Adders tree architecture will take large area and maximum power consumption in signal processing. So our Proposed approach of this work, will have replace the MCM multiplier to Truncated Multiplier and using the technique of Truncated based both Signed and Unsigned Operation with SQRT based Carry Select Adder (CSLA), and also replace the normal adders in FIR Filter to SQRT based Carry Select Adder (CSLA). In the proposed system of FIR Filter design results to be analysis with signed and unsigned Truncation using modified technique of HSCG-SCS based SQRT-CSLA and hence proved its more efficient than existing design, such as FIR filter for Truncation multiplier with SQRT-CSLA based Adders, FIR filter for Truncation multiplier with BEC based Adders, FIR filter for Truncation multiplier with RCA, and FIR filter for Truncation multiplier with Common Boolean logic based RCA, and finally implemented this design on VHDL with help of Xilinx FPGA-S6LX9 and shown the performance of proposed design in terms of delay, area, and power.


Author(s):  
N. Yoshimura ◽  
K. Shirota ◽  
T. Etoh

One of the most important requirements for a high-performance EM, especially an analytical EM using a fine beam probe, is to prevent specimen contamination by providing a clean high vacuum in the vicinity of the specimen. However, in almost all commercial EMs, the pressure in the vicinity of the specimen under observation is usually more than ten times higher than the pressure measured at the punping line. The EM column inevitably requires the use of greased Viton O-rings for fine movement, and specimens and films need to be exchanged frequently and several attachments may also be exchanged. For these reasons, a high speed pumping system, as well as a clean vacuum system, is now required. A newly developed electron microscope, the JEM-100CX features clean high vacuum in the vicinity of the specimen, realized by the use of a CASCADE type diffusion pump system which has been essentially improved over its predeces- sorD employed on the JEM-100C.


Author(s):  
Marc H. Peeters ◽  
Max T. Otten

Over the past decades, the combination of energy-dispersive analysis of X-rays and scanning electron microscopy has proved to be a powerful tool for fast and reliable elemental characterization of a large variety of specimens. The technique has evolved rapidly from a purely qualitative characterization method to a reliable quantitative way of analysis. In the last 5 years, an increasing need for automation is observed, whereby energy-dispersive analysers control the beam and stage movement of the scanning electron microscope in order to collect digital X-ray images and perform unattended point analysis over multiple locations.The Philips High-speed Analysis of X-rays system (PHAX-Scan) makes use of the high performance dual-processor structure of the EDAX PV9900 analyser and the databus structure of the Philips series 500 scanning electron microscope to provide a highly automated, user-friendly and extremely fast microanalysis system. The software that runs on the hardware described above was specifically designed to provide the ultimate attainable speed on the system.


Author(s):  
M. T. Postek ◽  
A. E. Vladar

One of the major advancements applied to scanning electron microscopy (SEM) during the past 10 years has been the development and application of digital imaging technology. Advancements in technology, notably the availability of less expensive, high-density memory chips and the development of high speed analog-to-digital converters, mass storage and high performance central processing units have fostered this revolution. Today, most modern SEM instruments have digital electronics as a standard feature. These instruments, generally have 8 bit or 256 gray levels with, at least, 512 × 512 pixel density operating at TV rate. In addition, current slow-scan commercial frame-grabber cards, directly applicable to the SEM, can have upwards of 12-14 bit lateral resolution permitting image acquisition at 4096 × 4096 resolution or greater. The two major categories of SEM systems to which digital technology have been applied are:In the analog SEM system the scan generator is normally operated in an analog manner and the image is displayed in an analog or "slow scan" mode.


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