Elevation Angle and Multipath Fading Coefficient Joint Estimation Algorithm in VHF Radar

Liu  Jun; Liu Zheng; Liu  Yun-Fu

doi:10.3724/SP.J.1146.2010.00251

Volume 33 Issue 1

Feb. 2011

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Liu Jun, Liu Zheng, Liu Yun-Fu. Elevation Angle and Multipath Fading Coefficient Joint Estimation Algorithm in VHF Radar[J]. Journal of Electronics & Information Technology, 2011, 33(1): 33-37. doi: 10.3724/SP.J.1146.2010.00251

Citation:

Liu Jun, Liu Zheng, Liu Yun-Fu. Elevation Angle and Multipath Fading Coefficient Joint Estimation Algorithm in VHF Radar[J]. Journal of Electronics & Information Technology, 2011, 33(1): 33-37. doi: 10.3724/SP.J.1146.2010.00251

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Elevation Angle and Multipath Fading Coefficient Joint Estimation Algorithm in VHF Radar

doi: 10.3724/SP.J.1146.2010.00251

Received Date: 2010-03-18
Rev Recd Date: 2010-08-23
Publish Date: 2011-01-19

Abstract

Abstract

Based on general MUSIC algorithm, an elevation angle and multipath fading coefficient of the target joint estimation algorithm is proposed in VHF multipath environment. In this algorithm, a virtual multipath fading coefficient is derived from the array covariance matrix and search angles, then a subspace is formed by this coefficient and search angles. When this subspace is orthogonal to the noise subspace, DOA angles are achieved. Simultaneously, the corresponding coefficient is multipath fading coefficient. While overcoming multipath effects to elevation angle measurement, this method retains antenna aperture, and does not require a special antenna array configuration. Theoretical analysis and computer simulation results demonstrate the merits of the new algorithm.
- VHF radar,
- Altitude measurement,
- Direction-Of-Arrival (DOA),
- Multipath,
- Fading coefficient

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References

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