Implementation of the cosine law for location awareness system

Pei Ju Lin*, Yeng Chang Huang, Yu Jung Huang, Ming-Dou Ker

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A proposed UHF RFID location system, based on a known location of the reference tags by applying the cosine theorem to calculus more location information, can provide location-aware services. In this article, the trigonometric cosine and sine functions required in the computation of the law of the cosines are realized using a Coordinate Rotation Digital Computer (CORDIC) based floating-point arithmetic scheme. The implementation of a CORDIC processor based on the IEEE 754 standard for binary floating-point arithmetic is demonstrated. The cosine law is implemented on DE2 circuit board and verified by logic analyzer.

Original languageEnglish
Title of host publicationPrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics
Pages255-258
Number of pages4
DOIs
StatePublished - 20 Dec 2010
Event2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2010 - Shanghai, China
Duration: 22 Sep 201024 Sep 2010

Publication series

NamePrimeAsia 2010 - 2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics

Conference

Conference2nd Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2010
CountryChina
CityShanghai
Period22/09/1024/09/10

Keywords

  • CORDIC
  • Location awareness
  • RFID
  • The cosine law

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