DIGITAL SIGNAL PROCESSING APPLICATIONS WITH ITERATIVE LOGARITHMIC MULTIPLIERS
Journal Title: Journal of Information Technology and Application (JITA) - Year 2011, Vol 1, Issue 2
Abstract
Many digital signal processing applications demand a huge number of multiplications, which are time, power and area consuming. But input data is often corrupted with noise, which means that a few least signifi cant bits do not carry usable information and do not need to be processed. Therefore, approximate multiplication does not affect application effi ciency when approximation error is less than noise introduced during data acquisition. This fact enables usage of faster and less power-consuming algorithms that is important in many cases where processing includes convolution, integral transformations, distance computations etc. This paper discusses logarithm-based approximate multipliers and squarers, their characteristics and digital signal processing applications based on approximate multiplications. Our iterative multipliers and squarers contain arbitrary series of basic blocks that involves only adders and shifters; therefore, it is not power and time consuming and enables achieving arbitrary accuracy. It was shown that proposed approximate multipliers and squarers can be used in several signal processing applications without decreasing of application effi ciency.
Authors and Affiliations
Aleksej Avramović, Patricio Bulić, Zdenka Babić
Keywords
Related Articles
- EP ID EP244596
- DOI -
- Views 107
- Downloads 0
USE OF MULTIPARAMETER ADAPTATION IN COMMUNICATION SYSTEMS
The article discusses the use of multiparameter adaptation in communication VHF waves communication, provides speciic schema that implements the proposed algorithm.
The Application Of Online Platforms In Open Innovation
It is well known that innovation has been recognized as a crucial success factor for companies. The development of information technologies enabled integration of innovators (suppliers, customers, institutes) into innova...
MANET VS. ZIGBEE: SOME SIMULATION EXPERIMENTS AT THE SEAPORT ENVIRONMENT
The paper presents the results of some OPNET simulation experiments realized with an aim to benchmark MANET and ZigBee networks’ performances at the seaport environment. The MANET is formed among workers’ and supervisors...
PACKET LOSS DIFFERENTIATION OVER MANET BASED ON A BP NEURAL NETWORK
An adaptive distributed routing algorithm is essential in MANETs, since there is no central routing system. Actually, there is no central point of coordination; each node is responsible for forwarding data packets to oth...
MUTATION TESTING: OBJECT-ORIENTED MUTATION AND TESTING TOOLS
Software testing represents activity in detecting software failures. Mutation testing represents a way to test a test. The basic idea of mutation testing is to seed lots of artifi cial defects into the program, test all...