| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | mtc-m16c.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repository | sid.inpe.br/MTC-m13@80/2005/11.21.22.04 |
| Last Update | 2006:06.14.04.44.20 (UTC) administrator |
| Metadata Repository | sid.inpe.br/MTC-m13@80/2005/11.21.22.04.16 |
| Metadata Last Update | 2018:06.04.04.12.29 (UTC) administrator |
| Secondary Key | INPE-13178-PRE/8436 |
| Citation Key | AveiroDenaAbduSchu:2005:StStCo |
| Title | Statistical Study of Constraining Parameters Space in Least Square Method aplIied to Gaussians fit to Power Spectratra of Simulated Radar Echoes of Electrojet Plasma Irregularities  |
| Format | CD-ROM, Papel. |
| Year | 2005 |
| Access Date | 2024, May 18 |
| Secondary Type | PRE CI |
| Number of Files | 1 |
| Size | 896 KiB |
| 2. Context | |
| Author | 1 Aveiro, Henrique Carlloto 2 Denardini, Clezio Marcos 3 Abdu, Mangalathayil Ali 4 Schuch, Nelson Jorge |
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JHNK 4 8JMKD3MGP5W/3C9JHUD |
| Group | 1 RSU-INPE-MCT-BR 2 DAE-INPE-MCT-BR |
| Affiliation | 1 Centro Regional Sul de Pesquisas Espaciais, ZIP 97.105-900 - Sta. Maria, RS, Brazil 2 Universidade Federal de Santa Maria, ZIP 97.105-900 - Sta. Maria, RS, Brazil 3 Instituto Nacional de Pesquisas Espaciais, Divisão de Aeronomia ()INPE, DAE) |
| Conference Name | International Union of Radio Science General Assembly - URSIGA. |
| Conference Location | New Delhi, Índia |
| Book Title | Proceedings |
| Tertiary Type | Posters |
| History (UTC) | 2005-11-21 22:04:16 :: seeger05 -> marciana :: 2005-12-22 14:02:21 :: marciana -> administrator :: 2006-09-27 20:14:56 :: administrator -> marciana :: 2008-05-02 14:59:04 :: marciana -> administrator :: 2018-06-04 04:12:29 :: administrator -> marciana :: 2005 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Abstract | The Least Square Fit Method modified by Levenberg-Marquardt is intensively used in many areas of space sciences for fittings mathematical equations to sample data. In equatorial electrojet studies based on back-scatter coherent radar data this method has been used to fit the sum of two Gaussians to the power spectra of the echoes back-scattered from 3-meter plasma irregularities. This fitting is done in order to identify the Doppler velocities of the two types of plasma irregularities power spectra present in the electrojet echoes. For the present work we have simulated coherent radar echoes to generate power spectra having the characteristic of the electrojet irregularities. The simulations were made based on a priori parameters of the plasma irregularities such as group velocity and spectral width. Using this simulated data set, we have performed a statistical study of constraining the parameters space in the Least Square Fit Method applied to two Gaussians fit to power spectra. The variance distribution of the Gaussian parameters is presented and analyzed in terms of the weights of the penalty functions, which prevent the method to converge to a local minimum. An analysis of the variance of each parameter as a function of its constraining value is also presented. |
| Area | CEA |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAE > Statistical Study of... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > CRCRS > Statistical Study of... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/sid.inpe.br/MTC-m13@80/2005/11.21.22.04 |
| zipped data URL | http://urlib.net/zip/sid.inpe.br/MTC-m13@80/2005/11.21.22.04 |
| Language | en |
| Target File | statistical study.pdf |
| User Group | administrator marciana seeger05 |
| Visibility | shown |
| Copy Holder | SID/SCD |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ETL868 8JMKD3MGPCW/3EUFCFP |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.57.02 1 |
| Dissemination | <E> |
| Host Collection | sid.inpe.br/mtc-m18@80/2008/03.17.15.17 |
| 6. Notes | |
| Empty Fields | archivingpolicy archivist callnumber contenttype copyright creatorhistory date descriptionlevel documentstage doi e-mailaddress edition editor electronicmailaddress identifier isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark type url versiontype volume |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |