# A Framework for Assessing the Interference from NGSO Satellite Systems to a Radio Astronomy System
## 5 Discussion and Conclusions
* [19] [PERSON]; [PERSON]; [PERSON] Auxiliary Antenna-Assisted Interference Mitigation for Radio Astronomy Arrays. _IEEE Trans. Signal Process._**2005**, _53_, 439-451. [CrossRef]
* [20] [PERSON]; [PERSON] Non-linear interference cancellation for radio astronomy receivers with strong RFI. In Proceedings of the GLOBECOM 2017--2017 IEEE Global Communications Conference, Singapore, 4-8 December 2017. * (21) Protection Criteria Used for Radio Astronomical Measurements. 2003. Available online: [[https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.769-2-200305-](https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.769-2-200305-)]([https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.769-2-200305-](https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.769-2-200305-))! !PDF-E.pdf (accessed on 1 December 2022). * (22) Levels of Data Loss to Radio Astronomy Observations and Percentage-of-Time Criteria Resulting from Degradation by Interference for Frequency Bands Allocated to the Radio Astronomy Service on a Primary Basis. 2015. Available online: [[https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.1513-2-201503-](https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.1513-2-201503-)]([https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.1513-2-201503-](https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.1513-2-201503-))! !PDF-E.pdf (accessed on 1 December 2022). * (23) Calculation of Unwanted Emission Levels Produced by a Non-Geostationary Fixed-Satellite Service System at Radio Astronomy Sites. 2003. Available online: [[https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1586-1-200701-](https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1586-1-200701-)]([https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1586-1-200701-](https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1586-1-200701-))! !PDF-E.pdf (accessed on 1 December 2022). * (24) Reference Radio Astronomy Antenna Pattern to be Used for Compatibility Analyses between Non-GSO Systems and Radio Astronomy Service Stations Based on the Epfd Concept. Available online: [[https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.1631-0-200305-](https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.1631-0-200305-)]([https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.1631-0-200305-](https://www.itu.int/dms_pubrec/itu-r/rec/ra/R-REC-RA.1631-0-200305-))! !PDF-E.pdf (accessed on 1 December 2022). * (25) Maximum Permissible Levels of Interference in a Satellite Network (GSO/FSS; Non-GSO/FSS; Non-GSO/MSS Feeder Links) in the Fixed-Satellite Service Caused by Other Codirectional FSS Networks below 30 GHz. 2001. Available online: [[https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1323-2-200209-](https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1323-2-200209-)]([https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1323-2-200209-](https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1323-2-200209-))! !PDF-E.pdf (accessed on 1 December 2022). * (26) Interference Calculations between Non-Geostationary Mobile-Satellite Service or Radionavigation-Satellite Service Systems and Radio Astronomy Telescope Sites. 2007. Available online: [[https://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.1583-1-200-710-](https://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.1583-1-200-710-)]([https://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.1583-1-200-710-](https://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.1583-1-200-710-))! !PDF-E.pdf (accessed on 1 December 2022). * (27) Functional Description to Be Used in Developing Software Tools for Determining Conformity of Non-Geostationary-Satellite Orbit Fixed-Satellite Service Systems or Networks with Limits Contained in Article 22 of the Radio Regulations. 2018. Available online: [[https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1503-3-201801-](https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1503-3-201801-)]([https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1503-3-201801-](https://www.itu.int/dms_pubrec/itu-r/rec/s/R-REC-S.1503-3-201801-))! !PDF-E.pdf (accessed on 1 December 2022).