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| Title | Using Particle Swarm Optimization to Establish a Local Geometric Geoid Model |
| Creator | 甯方璽 Kao, Szu-Pyng;Ning, Fang-Shii;Chen, Chao-Nan;Chen, Chia-Ling |
| Contributor | 地政系 |
| Key Words | Particle swarm optimization (PSO); Quadratic surface fitting; Ellipsoidal height; Orthometric height |
| Date | 2017-06 |
| Date Issued | 7-Jul-2017 15:49:13 (UTC+8) |
| Summary | There exist a number of methods for approximating the local geoid surface and studies carried out to determine a local geoid. In this study, performance of geoid by PSO method in modeling local geoid was presented and analyzed. The ellipsoidal heights (h), derived from GPS observations, and known orthometric heights from first-order benchmarks were first used to create local geometric geoid model, then the PSO method was used to convert ellipsoidal heights into orthometric heights (H). The resulting values were used to compare between the spirit leveling and GPS methods. The adopted PSO method can improve the fitting of local geometric geoid by quadratic surface fitting method, which agrees with the known orthometric heights within ±1.02cm |
| Relation | Bulletin of Geodetic Sciences, Vol.23, No.2, pp.327-335 Boletim de Ciências Geodésicas, Vol.23, No.2, pp.327-335 |
| Type | article |
| DOI | http://dx.doi.org/10.1590/S1982-21702017000200021 |
| dc.contributor | 地政系 | |
| dc.creator (作者) | 甯方璽 | zh_TW |
| dc.creator (作者) | Kao, Szu-Pyng;Ning, Fang-Shii;Chen, Chao-Nan;Chen, Chia-Ling | |
| dc.date (日期) | 2017-06 | |
| dc.date.accessioned | 7-Jul-2017 15:49:13 (UTC+8) | - |
| dc.date.available | 7-Jul-2017 15:49:13 (UTC+8) | - |
| dc.date.issued (上傳時間) | 7-Jul-2017 15:49:13 (UTC+8) | - |
| dc.identifier.uri (URI) | http://nccur.lib.nccu.edu.tw/handle/140.119/110730 | - |
| dc.description.abstract (摘要) | There exist a number of methods for approximating the local geoid surface and studies carried out to determine a local geoid. In this study, performance of geoid by PSO method in modeling local geoid was presented and analyzed. The ellipsoidal heights (h), derived from GPS observations, and known orthometric heights from first-order benchmarks were first used to create local geometric geoid model, then the PSO method was used to convert ellipsoidal heights into orthometric heights (H). The resulting values were used to compare between the spirit leveling and GPS methods. The adopted PSO method can improve the fitting of local geometric geoid by quadratic surface fitting method, which agrees with the known orthometric heights within ±1.02cm | |
| dc.format.extent | 684804 bytes | - |
| dc.format.mimetype | application/pdf | - |
| dc.relation (關聯) | Bulletin of Geodetic Sciences, Vol.23, No.2, pp.327-335 | |
| dc.relation (關聯) | Boletim de Ciências Geodésicas, Vol.23, No.2, pp.327-335 | |
| dc.subject (關鍵詞) | Particle swarm optimization (PSO); Quadratic surface fitting; Ellipsoidal height; Orthometric height | |
| dc.title (題名) | Using Particle Swarm Optimization to Establish a Local Geometric Geoid Model | |
| dc.type (資料類型) | article | |
| dc.identifier.doi (DOI) | 10.1590/S1982-21702017000200021 | |
| dc.doi.uri (DOI) | http://dx.doi.org/10.1590/S1982-21702017000200021 |