| Presentation | 2010-06-21 Signal Analysis by Mixture Model for Doppler Weather Radar Satoshi KON, Takeshi OYA, Toshihisa TANAKA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The weather echo is a signal reflected at the observation target. The ground clutter is from the ground. Therefore, we need to remove the ground clutter. To this end, Moving Target Indicator (MTI), which suppresses the low frequency spectra of the echo, is often used to remove the ground clutter. However, this MTI can remove components in the weather echo that exists in a low frequency band. To avoid this problem, we propose to model the spectra of the echos with the mixture of density functions. We employ Expectation Maximization (EM) algorithm for a penalized likelihood function to estimate the parameters of the mixed density function. We show by experiments that the proposed method works well in estimating the velocity, the velocity width and the power of the weather echo even when the weather echo exists in a lower frequency part. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ground clutter / weather echo / mixture density function / penalized EM algorithm |
| Paper # | CAS2010-14,VLD2010-24,SIP2010-35,CST2010-14 |
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| Conference Information | |
| Committee | VLD |
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| Conference Date | 2010/6/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | VLSI Design Technologies (VLD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Signal Analysis by Mixture Model for Doppler Weather Radar |
| Sub Title (in English) | |
| Keyword(1) | ground clutter |
| Keyword(2) | weather echo |
| Keyword(3) | mixture density function |
| Keyword(4) | penalized EM algorithm |
| 1st Author's Name | Satoshi KON |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering, Graduate School of Engineering() |
| 2nd Author's Name | Takeshi OYA |
| 2nd Author's Affiliation | Department of Electrical and Electronic Engineering, Graduate School of Engineering |
| 3rd Author's Name | Toshihisa TANAKA |
| 3rd Author's Affiliation | Institute of Engineering, Graduate School Tokyo University of Agriculture and Technology |
| Date | 2010-06-21 |
| Paper # | CAS2010-14,VLD2010-24,SIP2010-35,CST2010-14 |
| Volume (vol) | vol.110 |
| Number (no) | 87 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |