Ionospheric Polarization Techniques for Robust NVIS Remote Sensing Platforms
Every year more interest is focused on high frequencies (HF) communications for remote sensing platforms due to their capacity to establish links of more than 250 km without a line of sight and due to them being a low-cost alternative to satellite communications. In this article, we study the ionosp...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/11/3730 |
| _version_ | 1797566773272248320 |
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| author | Josep M. Maso Jordi Male Joaquim Porte Joan L. Pijoan David Badia |
| author_facet | Josep M. Maso Jordi Male Joaquim Porte Joan L. Pijoan David Badia |
| author_sort | Josep M. Maso |
| collection | DOAJ |
| description | Every year more interest is focused on high frequencies (HF) communications for remote sensing platforms due to their capacity to establish links of more than 250 km without a line of sight and due to them being a low-cost alternative to satellite communications. In this article, we study the ionospheric ordinary and extraordinary waves to improve the applications of near vertical incidence skywave (NVIS) on a single input multiple output (SIMO) configuration. To obtain the results, we established a link of 95 km to test the diversity combining of ordinary and extraordinary waves by using selection combining (SC) and equal-gain combining (EGC) on a remote sensing platform. The testbench is based on digital modulation transmissions with power transmission between 3 and 100 W. The results show us the main energy per bit to noise spectral density ratio (E<sub>b</sub>/N<sub>0</sub>) and the bit error rate (BER) differences between ordinary and extraordinary waves, SC, and EGC. To conclude, diversity techniques show us a decrease of the power transmission need, allowing for the use of compact antennas and increasing battery autonomy. Furthermore, we present three different improvement options for NVIS SIMO remote sensing platforms depending on the requirements of bitrate, power consumption, and efficiency of communication. |
| first_indexed | 2024-03-10T19:32:18Z |
| format | Article |
| id | doaj.art-0040353d8fd64ac08dbfdf57a5af1061 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T19:32:18Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-0040353d8fd64ac08dbfdf57a5af10612023-11-20T01:59:03ZengMDPI AGApplied Sciences2076-34172020-05-011011373010.3390/app10113730Ionospheric Polarization Techniques for Robust NVIS Remote Sensing PlatformsJosep M. Maso0Jordi Male1Joaquim Porte2Joan L. Pijoan3David Badia4La Salle Campus, Ramon Llull University, 08022 Barcelona, SpainLa Salle Campus, Ramon Llull University, 08022 Barcelona, SpainLa Salle Campus, Ramon Llull University, 08022 Barcelona, SpainLa Salle Campus, Ramon Llull University, 08022 Barcelona, SpainLa Salle Campus, Ramon Llull University, 08022 Barcelona, SpainEvery year more interest is focused on high frequencies (HF) communications for remote sensing platforms due to their capacity to establish links of more than 250 km without a line of sight and due to them being a low-cost alternative to satellite communications. In this article, we study the ionospheric ordinary and extraordinary waves to improve the applications of near vertical incidence skywave (NVIS) on a single input multiple output (SIMO) configuration. To obtain the results, we established a link of 95 km to test the diversity combining of ordinary and extraordinary waves by using selection combining (SC) and equal-gain combining (EGC) on a remote sensing platform. The testbench is based on digital modulation transmissions with power transmission between 3 and 100 W. The results show us the main energy per bit to noise spectral density ratio (E<sub>b</sub>/N<sub>0</sub>) and the bit error rate (BER) differences between ordinary and extraordinary waves, SC, and EGC. To conclude, diversity techniques show us a decrease of the power transmission need, allowing for the use of compact antennas and increasing battery autonomy. Furthermore, we present three different improvement options for NVIS SIMO remote sensing platforms depending on the requirements of bitrate, power consumption, and efficiency of communication.https://www.mdpi.com/2076-3417/10/11/3730HFNVISSIMOdiversity combiningremote sensing platform |
| spellingShingle | Josep M. Maso Jordi Male Joaquim Porte Joan L. Pijoan David Badia Ionospheric Polarization Techniques for Robust NVIS Remote Sensing Platforms Applied Sciences HF NVIS SIMO diversity combining remote sensing platform |
| title | Ionospheric Polarization Techniques for Robust NVIS Remote Sensing Platforms |
| title_full | Ionospheric Polarization Techniques for Robust NVIS Remote Sensing Platforms |
| title_fullStr | Ionospheric Polarization Techniques for Robust NVIS Remote Sensing Platforms |
| title_full_unstemmed | Ionospheric Polarization Techniques for Robust NVIS Remote Sensing Platforms |
| title_short | Ionospheric Polarization Techniques for Robust NVIS Remote Sensing Platforms |
| title_sort | ionospheric polarization techniques for robust nvis remote sensing platforms |
| topic | HF NVIS SIMO diversity combining remote sensing platform |
| url | https://www.mdpi.com/2076-3417/10/11/3730 |
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