Development of direct method of direction finding with two-dimensional correlative processing of spatial signal

Authors

DOI:

https://doi.org/10.15587/1729-4061.2016.85599

Keywords:

direct digital method, correlative-interferometric direction finding, reconstructing of the spatial analytical signal

Abstract

The development of the direct digital method of correlative-interferometric direction finding with two-dimensional correlative processing of the reconstructed complex spatial signal in the aperture of linear antenna array was conducted. The estimations of directions towards the radio sources are obtained through the use of a two-dimensional frequency domain of determination and a two-stage processing, which enables the direct correlative analysis with minimal computing expense. At this point, the direct estimation of directions towards the sources of casual radio emissions, which spectra are fully overlapped by frequency, is performed in real time by reconstructing of the complex spatial analytical signals, their spatial selection and dispersive-correlative processing.

As a result of simulation, the dependence family of mean square deviation of estimation of direction from the direction of the source of radio radiation for different signal/noise ratios is obtained. The analysis showed that the examined method provides a higher accuracy of direction finding in comparison with the known method in a wide sector of directions, but it has lower computation costs and provides a significant speed increase of direction finding.

It is shown that the direction finding in the sector 360 degrees with an error of less than 0.04 degrees, when the input signal/noise ratio of 0 dB, is possible by using two antenna arrays. The possibility to ensure the resolution of 8 degrees or less at a signal/noise ratio of 0 dB, which is an important advantage in a complex electromagnetic environment is also shown.

Author Biographies

Vitaliy Tsyporenko, Zhytomyr State Technological University Chernyakhovsky str., 103, Zhytomyr, Ukraine, 10005

PhD, Associate professor

Department of radio engineering, electronic devices and telecommunications

Valentyn Tsyporenko, Zhytomyr State Technological University Chernyakhovsky str., 103, Zhytomyr, Ukraine, 10005

PhD, Associate professor

Department of radio engineering, electronic devices and telecommunications

References

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Published

2016-12-26

How to Cite

Tsyporenko, V., & Tsyporenko, V. (2016). Development of direct method of direction finding with two-dimensional correlative processing of spatial signal. Eastern-European Journal of Enterprise Technologies, 6(9 (84), 63–70. https://doi.org/10.15587/1729-4061.2016.85599

Issue

Vol. 6 No. 9 (84) (2016): Information and controlling system

Section

Information and controlling system

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Copyright (c) 2016 Vitaliy Tsyporenko, Valentyn Tsyporenko

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