Performance Comparison of QPSK Based Single and Double Stage Digital Interpolators

Ratan, R.; Sharma, S.; Kohli, A.

doi:10.12693/APhysPolA.123.196

Journal

Acta Physica Polonica A

2013 | 123 | 2 | 196-198

Article title

Performance Comparison of QPSK Based Single and Double Stage Digital Interpolators

Authors

R. Ratan , S. Sharma , A. Kohli

Content

Full texts:

http://przyrbwn.icm.edu.pl/APP/PDF/123/a123z2p011.pdf [remote]

Title variants

Languages of publication

Abstracts

In this paper, the performance of single stage and double stage digital interpolators has been compared and has been showed that by using multi stage interpolation system the reliability of any communication system increases drastically. Digital signal interpolation systems can be implemented in a variety of ways. The basic interpolator for up-sampling can be a combination of an expander unit with an interpolation low-pass filter in cascade. Complicated implementations can be done by connecting multiple expander and low-pass filter pairs in cascade. This paper presents the efficient implementation of digital interpolation systems for up-sampling of single stage and double stage digital interpolators by using quadrature phase shift keying technique. Comparison is done in terms of spectrum of generated signal, envelope power, modulated signal trajectory, input and output constellation and noise performance.

Keywords

84.30.Qi 84.30.Vn

Discipline

Publisher

Journal

Acta Physica Polonica A

Year

2013

Volume

123

Issue

Pages

196-198

Physical description

Dates

published

2013-02

Contributors

author

R. Ratan

Department of Electronics & Communication Engineering, Thapar University, Patiala, Punjab, 147004, India

author

S. Sharma

Department of Electronics & Communication Engineering, Thapar University, Patiala, Punjab, 147004, India

author

A. Kohli

Department of Electronics & Communication Engineering, Thapar University, Patiala, Punjab, 147004, India

References

[1] A.Y. Kwentus, A.K.Z. Jiang, A.N. Willson Jr, IEEE Trans. Signal Proc. 45, 457 (1997)
[2] C. Farrow, in: Proc. IEEE Int. Symp. on Circuits and Systems (ISCAS88), 1998, p. 2642
[3] D. Babic, M. Renfors, IEEE Signal Proc. Lett. 12, 1 (2005)
[4] E.B. Hogenauer, IEEE Trans. on Acoust. Speech Signal Proc. ASSP 29, 155 (1981)
[5] H. Oh, S. Kim, G. Choi, Y. Lee, IEEE J. Select. Areas Commun. 17, 551 (1999)
[6] J. Vesma, Ph.D. Thesis, Tampere University of Technology, 1999
[7] J. Vesma, T. Saramäki, Filter Synthesis. Circ. Syst. Signal Proc. 26, 115 (2007)

Document Type

Publication order reference

Identifiers

DOI

10.12693/APhysPolA.123.196

YADDA identifier

bwmeta1.element.bwnjournal-article-appv123n2011kz