Share Email Print
cover

Proceedings Paper

Interpolation circuit with high resolution and high response speed
Author(s): Weiying Piao; Yibao Yuan; Lianhu Xu; Hao Zhang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

An interpolation circuit based upon the looking-up table by hardware is presented. Output data of two A/D convertors are connected to ROM's address bus. The memory space of ROM is divided. When the address bus is activated by A/D conversion's output data, the ROM's output data is interpolation data. This circuit has high response speed, and it is easy to obtain high interpolation multiple. The same kind of hardware circuit can achieve different interpolation multiple by modifying ROM's data. It is very convenient and flexible. The principle of direction judgment and counting is analyzed; the implementation speed and maximal interpolation multiple are discussed in this paper. Finally through experiment, make sure this circuit not only has the characteristic of high response speed and high interpolation multiple, but also avoids the counting error of micro-computer interpolation.

Paper Details

Date Published: 20 May 2009
PDF: 4 pages
Proc. SPIE 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 72830M (20 May 2009); doi: 10.1117/12.828605
Show Author Affiliations
Weiying Piao, Harbin Institute of Technology (China)
Yibao Yuan, Harbin Institute of Technology (China)
Lianhu Xu, Harbin Institute of Technology (China)
Hao Zhang, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 7283:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; James C. Wyant; Robert A. Smythe; Hexin Wang, Editor(s)

© SPIE. Terms of Use
Back to Top