## 7 Ground-Segment Optimization Aspects
### Applicable Optimization Methods for Ground Segment
#### 7.2.2 Long Short-Term Memory (LSTM)
[CrossRef]
* _[PERSON] et al. (1998)_ [PERSON]; [PERSON]; [PERSON]; [PERSON] An overview of the IRIDIUM (R) low Earth orbit (LEO) satellite system. In Proceedings of the IEEE 1998 National Aerospace and Electronics Conference. NAECON 1998. Celebrating 50 Years (Cat. No.98 CH36185), Dayton, OH, USA, 17 July 1998; pp. 152-159. [CrossRef]
* _[PERSON] et al. (2004)_ [PERSON]; [PERSON]; [PERSON] The Flower Constellations. _J. Astronaut. Sci._**2004**, _52_, 107-127. [CrossRef]
* _[PERSON] et al. (2013)_ [PERSON]; [PERSON]; [PERSON] The 2-D lattice theory of Flower Constellations. _Celest. Mech. Dyn. Astron._**2013**, _116_, 325-337. [CrossRef]
* _[PERSON] et al. (2013)_ [PERSON]; [PERSON]; [PERSON] The 3-D lattice theory of Flower Constellations. _Celest. Mech. Dyn. Astron._**2013**, _116_, 339-356. [CrossRef]
* _[PERSON] et al. (2018)_ [PERSON]; [PERSON] [PERSON]; [PERSON] [PERSON] 2D Necklace Flower Constellations. _Acta Astronaut._**2018**, _142_, 18-28. [CrossRef]
* _[PERSON] et al. (2017)_ [PERSON]; [PERSON]; [PERSON] [PERSON]; [PERSON] 3-Dimensional Necklace Flower Constellations. _Celest. Mech. Dyn. Astron._**2017**, _129_, 433-448. [CrossRef]
* _[PERSON] and [PERSON] (2020)_ [PERSON]; [PERSON] Nominal definition of satellite constellations under the Earth gravitational potential. _Celest. Mech. Dyn. Astron._**2020**, _132_, 19. [CrossRef]
* _[PERSON] et al. (2006)_ [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] The flower constellation set and its possible applications. _ACT Final. [PERSON]_**2006**, \(5\), 4108. * _Globalstar (2000)_ [PERSON] Description of the Globalstar system. Technical Report, GS-TR-94-0001. 2000. Available online: [[https://gsproductsupport.files.wordpress.com/2009/04/description-of-the-globalstar-system-gs-tr-94-0001-rev-e-2000-12-07.pdf](https://gsproductsupport.files.wordpress.com/2009/04/description-of-the-globalstar-system-gs-tr-94-0001-rev-e-2000-12-07.pdf)]([https://gsproductsupport.files.wordpress.com/2009/04/description-of-the-globalstar-system-gs-tr-94-0001-rev-e-2000-12-07.pdf](https://gsproductsupport.files.wordpress.com/2009/04/description-of-the-globalstar-system-gs-tr-94-0001-rev-e-2000-12-07.pdf)) (accessed on 21 December 2021). * _Globalstar (2016)_ Globalstar. Terrestrial Use of the 2473-2495 MHz Band for Low-Power Mobile Broadband Networks; Amendments to Rules for the Ancillary Terrestrial Component Of Mobile Satellite Service Systemsystem, Attachment A: Technical Information To Supplement Schedule. 2016. Available online: [[https://docs.fcc.gov/public/attachments/FCC-16-181A1.pdf](https://docs.fcc.gov/public/attachments/FCC-16-181A1.pdf)]([https://docs.fcc.gov/public/attachments/FCC-16-181A1.pdf](https://docs.fcc.gov/public/attachments/FCC-16-181A1.pdf)) (accessed on 20 December 2021). * _[PERSON] (2021)_ [PERSON] The Orbcomm Experience. Available online: [[https://artes.esa.int/sites/default/files/1_The_Orbcomm_Experience.pdf](https://artes.esa.int/sites/default/files/1_The_Orbcomm_Experience.pdf)]([https://artes.esa.int/sites/default/files/1_The_Orbcomm_Experience.pdf](https://artes.esa.int/sites/default/files/1_The_Orbcomm_Experience.pdf)) (accessed on 18 December 2021). * _[PERSON] et al. (1997)_ [PERSON]; [PERSON]; [PERSON]; [PERSON] Systems engineering trades for the iridium constellation. _[PERSON]. Rocket._**1997**, _34_, 675-680. [CrossRef]* (107) [PERSON] Iridium NEXT SensorPODs: Global Access for Your Scientific Payloads. AIAA/USU Conference on Small Satellites. 2011. Available online: [[https://pdfs.semanticscholar.org/c337/5](https://pdfs.semanticscholar.org/c337/5) bf7d1 bce0 bddc78b130d81d0a9 eae67225e.pdf]([https://pdfs.semanticscholar.org/c337/5](https://pdfs.semanticscholar.org/c337/5) bf7d1 bce0 bddc78b130d81d0a9 eae67225e.pdf) (accessed on 21 December 2021)
* (108) Starlink. Spacex Non-Geostationary Satellite System, Attachment A, Technical Information to Supplement Schedule S. 2020.