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DOA Estimation Using Time-Frequency Conversion Pre-Processing Method
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- Authors
- S.-T. Kim, J.-T. Kim, Y.-S. Choi
- Issue Date
- 2011-12
- Citation
- Progress in Electromagnetics Research C, v.24, pp.13-24
- ISSN
- 1937-8718
- Publisher
- EMW Publishing
- Language
- English
- Type
- Journal Article
- Abstract
- In many cases, the study of DOA estimation techniques is developed based on ideal condition of signal sources and array sensor antennas. But, there are much more errors as a result of signal shadow effects from noise contribution and interference of installation environment in real system. In this paper, the DOA estimation algorithm using the de-noising pre-processing based on time-frequency conversion analysis was proposed, and the performance was analyzed. This is focused on the improvement of DOA estimation at a lower SNR and interference environment.
- KSP Keywords
- De-noising, Doa estimation, Estimation technique, Noise contribution, Pre-processing, Processing Method, array sensor, estimation algorithm, frequency conversion, interference environment, signal source