A Fast Direction Finding Algorithm Based on Correlation Processing

Article Preview

Abstract:

To reduce the computational complexity of direction finding algorithms based on correlation processing, a fast algorithm is presented in this paper. Unlike the conventional direction finding algorithms which calculates the correlation coefficients in the whole azimuth range, the improved algorithm measure the direction of arrival (DOA) roughly first, then, measure the DOA only in finite angle interval and searches the maximal correlation coefficient, thus shorten the execution time greatly. In addition, the algorithm has no influence on the accuracy of direction finding. The best proportion between samples for rough measurement and samples for fine measurement is analyzed. Computer simulation results confirm that the proposed method can shorten the computation time greatly, and the proposed algorithm has practical application value in the instantaneous direction finding.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

880-883

Citation:

Online since:

August 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] X. An, Z. Feng, W. Wang and T. Li: A single channel correlative interferometer direction finder using VXI receiver[C]/Proc. International Conference on Microwave and Milimeter Wave Technology(ICMMT), Beijing, (2002), p.1158.

DOI: 10.1109/icmmt.2002.1187913

Google Scholar

[2] C. S. Park and D. Y. Kim: The fast correlative interferometer direction finder using I/Q Demodulator[C]/Proc. Asia-Pacific Conference on Commnunications (APCC), Busan, (2006), p.1.

DOI: 10.1109/apcc.2006.255915

Google Scholar

[3] L. Balogh and I. Kollar: Angle of arrival estimation based on interferometer principle[C]/Proc. IEEE International Symposimu on Intelligent Signal Processing, Budapest, (2003), p.219.

DOI: 10.1109/isp.2003.1275842

Google Scholar

[4] Hewen Wei, Jun Wang, Shangfu Ye: Journal of electronics & information technology(In Chinese), Vol. 29(11): (2007), p.2665.

Google Scholar

[5] Yaqi Liu, Shuguo Xie, Xuchun Hao, et al: A developed phase differences interpolation algorithm in the correlative interferometer[C]/2012 10th International Symposium on Antennas, Propagation and EM Theory(ISAPE), Xi'an, (2012), p.451.

DOI: 10.1109/isape.2012.6408803

Google Scholar