Pub Date : 2022-01-16DOI: 10.1109/SHaRC53093.2022.9720030
Yu-Jiun Ren, Chih-Kang Sun, Bob Litzlbeck
This work presents shielded RF micro-coaxial connectors and board-to-board connectors which demonstrates 25-45 dB lower signal leakage performance than generally used RF connectors. The issues causing current connector leakage have been identified and modified with manufactural treatments. The newly developed connectors can operate up to 18 GHz and beyond. Small RF connectors are perfect fit for pico/nano satellites and no additional shielding is needed to secure signal paths suffering intentional or unintentional radiation emissions.
{"title":"Low Leakage RF Coaxial Connectors and Board-to-Board Connectors with Radiation Emission Control","authors":"Yu-Jiun Ren, Chih-Kang Sun, Bob Litzlbeck","doi":"10.1109/SHaRC53093.2022.9720030","DOIUrl":"https://doi.org/10.1109/SHaRC53093.2022.9720030","url":null,"abstract":"This work presents shielded RF micro-coaxial connectors and board-to-board connectors which demonstrates 25-45 dB lower signal leakage performance than generally used RF connectors. The issues causing current connector leakage have been identified and modified with manufactural treatments. The newly developed connectors can operate up to 18 GHz and beyond. Small RF connectors are perfect fit for pico/nano satellites and no additional shielding is needed to secure signal paths suffering intentional or unintentional radiation emissions.","PeriodicalId":193747,"journal":{"name":"2022 IEEE Space Hardware and Radio Conference (SHaRC)","volume":"2008 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125623206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-16DOI: 10.1109/SHaRC53093.2022.9720000
R. Oliva, P. de Matthaeis, R. Natsuaki
Radio Frequency Interference contamination for Earth Observation satellites is an on-growing problem, but the situation is not properly reported. A new IEEE standard is being developed to quantify the amount of RFI in the frequency bands used by remote sensing satellites. This standard will allow for a proper monitoring of the RFI trends in each frequency band
{"title":"Development of an IEEE Standard to Assess Interference on Remote Sensing Frequency Bands","authors":"R. Oliva, P. de Matthaeis, R. Natsuaki","doi":"10.1109/SHaRC53093.2022.9720000","DOIUrl":"https://doi.org/10.1109/SHaRC53093.2022.9720000","url":null,"abstract":"Radio Frequency Interference contamination for Earth Observation satellites is an on-growing problem, but the situation is not properly reported. A new IEEE standard is being developed to quantify the amount of RFI in the frequency bands used by remote sensing satellites. This standard will allow for a proper monitoring of the RFI trends in each frequency band","PeriodicalId":193747,"journal":{"name":"2022 IEEE Space Hardware and Radio Conference (SHaRC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126508544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-16DOI: 10.1109/SHaRC53093.2022.9720016
Lennart Werner, C. Liman, M. Gardill
In this work, we demonstrate how to use a framework of computer simulation tools to establish a digital twin of a pico-satellite link. With high-fidelity, we emphasize that any change of parameters on the mission level, e.g., orbital parameters or the antennas used on satellite or ground station, is automatically reflected down to the radio frequency (RF) link model and finally evaluated on the digital symbol level, including end-to-end performance on the bit level. We evaluate this approach by simulating the link of the UWE-4 mission [1] and comparing the simulation results with raw-data recorded from the Telemetry, Tracking and Control (TT&C) link.
{"title":"High-Fidelity Simulation of a Pico Satellite Link","authors":"Lennart Werner, C. Liman, M. Gardill","doi":"10.1109/SHaRC53093.2022.9720016","DOIUrl":"https://doi.org/10.1109/SHaRC53093.2022.9720016","url":null,"abstract":"In this work, we demonstrate how to use a framework of computer simulation tools to establish a digital twin of a pico-satellite link. With high-fidelity, we emphasize that any change of parameters on the mission level, e.g., orbital parameters or the antennas used on satellite or ground station, is automatically reflected down to the radio frequency (RF) link model and finally evaluated on the digital symbol level, including end-to-end performance on the bit level. We evaluate this approach by simulating the link of the UWE-4 mission [1] and comparing the simulation results with raw-data recorded from the Telemetry, Tracking and Control (TT&C) link.","PeriodicalId":193747,"journal":{"name":"2022 IEEE Space Hardware and Radio Conference (SHaRC)","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123242226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-16DOI: 10.1109/SHaRC53093.2022.9720015
A. Katz, R. Gray, R. Dorval, Paul Drexler
A dual band linearizer for high power amplifiers (HPAs) used for multi-platform satellite communication uplinks in the Ka- and Q- bands is described in this paper. Transmissions in these bands now utilize complex digital modulations to increase their bandwidth efficiency. HPAs made for these modulations must be linear in order to minimize distortion. To achieve the required linearity, amplifiers are operated at reduced power, which results in lower efficiency, larger and heavier HPAs, extra heat, and higher costs. Linearization is used to cancel distortion and allow HPAs to operate closer to their maximum power; especially at millimeter-wave (MMW) where power is costly. Linearizers typically cover a single frequency band. The linearizer discussed here operates at two critical MMW SATCOM bands. When operated with a suitable wideband HPA, it allows efficient linear operation over both bands and considerable savings over HPAs for the individual bands. It can be used with both TWTAs and SSPAs, but was developed for a TWTA application. It is believed to the first multi-band linearizer developed for MMW.
{"title":"Ka/Q Dual Band Linearizer","authors":"A. Katz, R. Gray, R. Dorval, Paul Drexler","doi":"10.1109/SHaRC53093.2022.9720015","DOIUrl":"https://doi.org/10.1109/SHaRC53093.2022.9720015","url":null,"abstract":"A dual band linearizer for high power amplifiers (HPAs) used for multi-platform satellite communication uplinks in the Ka- and Q- bands is described in this paper. Transmissions in these bands now utilize complex digital modulations to increase their bandwidth efficiency. HPAs made for these modulations must be linear in order to minimize distortion. To achieve the required linearity, amplifiers are operated at reduced power, which results in lower efficiency, larger and heavier HPAs, extra heat, and higher costs. Linearization is used to cancel distortion and allow HPAs to operate closer to their maximum power; especially at millimeter-wave (MMW) where power is costly. Linearizers typically cover a single frequency band. The linearizer discussed here operates at two critical MMW SATCOM bands. When operated with a suitable wideband HPA, it allows efficient linear operation over both bands and considerable savings over HPAs for the individual bands. It can be used with both TWTAs and SSPAs, but was developed for a TWTA application. It is believed to the first multi-band linearizer developed for MMW.","PeriodicalId":193747,"journal":{"name":"2022 IEEE Space Hardware and Radio Conference (SHaRC)","volume":"8 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120986616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-16DOI: 10.1109/sharc53093.2022.9720004
{"title":"[SHaRC 2022 Front cover]","authors":"","doi":"10.1109/sharc53093.2022.9720004","DOIUrl":"https://doi.org/10.1109/sharc53093.2022.9720004","url":null,"abstract":"","PeriodicalId":193747,"journal":{"name":"2022 IEEE Space Hardware and Radio Conference (SHaRC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126513145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-16DOI: 10.1109/SHaRC53093.2022.9720032
Z. Yoon, Walter Frese, E. Stoll
This article presents the long-term in-orbit performance of the narrowband nanosatellite mission S-NET, which is operating in orbit for 3.5 years. The mission consists of four nanosatellites á 9 kg and has been successfully deployed in Feb. 2018 to demonstrate multi-point crosslink for a distance up to 400 km at 100 kpbs. The main payload is a miniaturized SDR (software defined radio) with 0.5 W Tx power and adaptive coding and modulation scheme. The orbit performance e.g. link budget, differential drag control and radiation tolerance are presented. The results confirm that these nanosatellites are technically and economically feasible as a space-based IoT communication backhaul.
{"title":"In-Orbit Performance of the Narrowband Intersatellite Mission S-NET","authors":"Z. Yoon, Walter Frese, E. Stoll","doi":"10.1109/SHaRC53093.2022.9720032","DOIUrl":"https://doi.org/10.1109/SHaRC53093.2022.9720032","url":null,"abstract":"This article presents the long-term in-orbit performance of the narrowband nanosatellite mission S-NET, which is operating in orbit for 3.5 years. The mission consists of four nanosatellites á 9 kg and has been successfully deployed in Feb. 2018 to demonstrate multi-point crosslink for a distance up to 400 km at 100 kpbs. The main payload is a miniaturized SDR (software defined radio) with 0.5 W Tx power and adaptive coding and modulation scheme. The orbit performance e.g. link budget, differential drag control and radiation tolerance are presented. The results confirm that these nanosatellites are technically and economically feasible as a space-based IoT communication backhaul.","PeriodicalId":193747,"journal":{"name":"2022 IEEE Space Hardware and Radio Conference (SHaRC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131553963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-16DOI: 10.1109/SHaRC53093.2022.9720007
F. Eichstaedt, J. Budroweit
This paper presents a multi-channel Automatic Dependent Surveillance-Broadcast (ADS-B) receiver approach based on a GNURadio implementation on a highly integrated software-defined radio (SDR) platform for space application. The receiver is implemented to run standalone on the embedded platform and to receive on up to four channels simultaneously. The presented test results show the general feasibility but also uncover the bottleneck of GNURadio-based implementations on embedded SDRs and its issues with respect to real-time constraints.
{"title":"Evaluation of a GNURadio-based multi-channel ADS-B receiver implemented on a highly integrated SDR platform for space application","authors":"F. Eichstaedt, J. Budroweit","doi":"10.1109/SHaRC53093.2022.9720007","DOIUrl":"https://doi.org/10.1109/SHaRC53093.2022.9720007","url":null,"abstract":"This paper presents a multi-channel Automatic Dependent Surveillance-Broadcast (ADS-B) receiver approach based on a GNURadio implementation on a highly integrated software-defined radio (SDR) platform for space application. The receiver is implemented to run standalone on the embedded platform and to receive on up to four channels simultaneously. The presented test results show the general feasibility but also uncover the bottleneck of GNURadio-based implementations on embedded SDRs and its issues with respect to real-time constraints.","PeriodicalId":193747,"journal":{"name":"2022 IEEE Space Hardware and Radio Conference (SHaRC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129226458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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