VINAG (VISION/INS integrated Navigation Assisted by GNSS) is a highly integrated multisensor navi... more VINAG (VISION/INS integrated Navigation Assisted by GNSS) is a highly integrated multisensor navigation unit, particularly conceived for On-Orbit Servicing missions. The system is designed to provide all-in-one, on-board real time autonomous absolute navigation as well as pose determination of an uncooperative known object orbiting in LEO (Low Earth Orbit), GEO (GEosynchronous Orbits) and possibly in HEO (Highly Earth Orbit). The system VINAG is under development by a team of Italian companies and universities, co-financed by the Italian Space Agency. Thanks to a tight optimized integration of its subsystems, VINAG is characterized by a low power and mass total budgets and therefore it is suitable for small and very small satellites. In order to provide both 1) absolute orbit and attitude determination and 2) vision-based pose determination, the unit integrates three metrology systems: a Cameras Subsystem (a monocular camera and a Star sensor), an Inertial Measurement Unit (IMU) and...
2012 IEEE First AESS European Conference on Satellite Telecommunications (ESTEL), 2012
ABSTRACT The paper describes an optimized solution for the a Galileo Pseudolite based on a Transc... more ABSTRACT The paper describes an optimized solution for the a Galileo Pseudolite based on a Transceiver consisting in the integration of a very accurate dual carrier (programmable E1-E6 or E1-E5) GALILEO Signal In Space Generator and a matched dual carrier GALILEO precision Time Receiver in a very compact (16 mm by 10 mm) state of art Software Radio Hardware platform. This solution simplifies the synchronization of the pseudolite to a system time without the necessity to foresee the presence of dedicate infrastructure such as reference station.
VINAG (VISION/INS integrated Navigation Assisted by GNSS) is a highly integrated multisensor navi... more VINAG (VISION/INS integrated Navigation Assisted by GNSS) is a highly integrated multisensor navigation unit, particularly conceived for On-Orbit Servicing missions. The system is designed to provide all-in-one, on-board real time autonomous absolute navigation as well as pose determination of an uncooperative known object orbiting in LEO (Low Earth Orbit), GEO (GEosynchronous Orbits) and possibly in HEO (Highly Earth Orbit). The system VINAG is under development by a team of Italian companies and universities, co-financed by the Italian Space Agency. Thanks to a tight optimized integration of its subsystems, VINAG is characterized by a low power and mass total budgets and therefore it is suitable for small and very small satellites. In order to provide both 1) absolute orbit and attitude determination and 2) vision-based pose determination, the unit integrates three metrology systems: a Cameras Subsystem (a monocular camera and a Star sensor), an Inertial Measurement Unit (IMU) and...
Present work describes the algorithmic design and show the performance of a Turbo Decoder aimed f... more Present work describes the algorithmic design and show the performance of a Turbo Decoder aimed for low Eb/No working points (near Shannon limit) that was purposely design to work in a pragmatic approach with the following constellations QPSK, 8PSK, 16APSK, 16QAM. This Turbo Codec is based on a pure Turbo Codes implementation without the need of additional Reed Solomon Outer Codec. 1 Overview Turbo codes, first introduced in 1993, are a new way to construct concatenated codes able to achieve near Shannon-limit error correction in terms of BER. The presence of large interleavers and iterative feedback decoding allow reaching these results thanks to relatively simple structure. In a first issue turbo codes have been presented in parallel fashion, made up by two RSCs (Recursive Systematic Codes) and an interleaver. The progress of the study gets possible different choices in number, type and concatenation of coders to obtain solutions with different performances and complexity (both du...
ABSTRACT The work associated to this article is a study initiative sponsored by ESA/ESTEC that re... more ABSTRACT The work associated to this article is a study initiative sponsored by ESA/ESTEC that responds to the crucial need of developing new Satellite payload aimed at making rapid progresses in handling large amounts of data at a competitive price with respect to terrestrial one in the telecommunication field. Considering the quite limited band allowed to space communications at Ka band, reusing the same band in a large number of beams is mandatory: therefore beam-forming is the right technological answer. Technological progresses - mainly in the digital domain - also help greatly in increasing the satellite capacity. Next Satellite payload target are set in throughput range of 50Gbps. Despite the fact that the implementation of a wideband transparent processor for a high capacity communication payload is a very challenging task, Space Engineering team in the frame of this ESA study proposed an intermediate step of development for a scalable unit able to demonstrate both the capacity and flexibility objectives for different type of Wideband Beamforming antennas designs. To this aim the article describes the features of Wideband HW (analog and digital) platform purposely developed by Space Engineering in the frame of this ESA/ESTEC contract ("WDBFN" contract) with some preliminary system test results. The same platform and part of the associated SW will be used in the development and demonstration of the real payload digital front end Mux and Demux algorithms as well as the Beam Forming and on Board channel switching in frequency domain. At the time of this article writing, despite new FPGA and new ADC and DAC converters have become available as choices for wideband system implementation, the two HW platforms developed by Space Engineering, namely WDBFN ADC and DAC Boards, represent still the most performing units in terms of analog bandwidth, processing capability (in terms of FPGA module density), SERDES (SERiliazer DESerializers) external links density, integration form factor (6U C-PCI) and modularity (they are both rack mounted boards).
ABSTRACT The state of art of GALILEO Signal In Space specifications has been implemented by Space... more ABSTRACT The state of art of GALILEO Signal In Space specifications has been implemented by Space Engineering GALILEO Simulator. The design and quality test results of this Professional Instrument, aimed to support GALILEO receiver development, will be described in this Paper. The current version is compatible with SIS ICD vers. 12.0, but would allow easy migration to MBOC for L1 carrier, when this specification will be formalized by a new SIS ICD release. For what concern the E5 signal the Simulator is a truly Alt-BOC coherent generator allowing a 120MHz analog Bandwidth being generated digitally and not as two separate E5a and E5b analog signals. The current version of Space Engineering Signal In Space Simulator allow to generate up to four Satellites for all the three carriers L1, E5 and E6 simultaneously and it is a self contained unit, complete of AC power supplying adapter and fan cooling system, arranged in a single Compact-PCI (C-PCI)19" Rack.
8PSK Demodulator for new generation DVB-S2 T.Botticchio1 P.Burzigotti1 , R.Degaudenzi2, M.Luise3,... more 8PSK Demodulator for new generation DVB-S2 T.Botticchio1 P.Burzigotti1 , R.Degaudenzi2, M.Luise3, A.Martinez2, F.Richichi1 and P.Tabacco4. 1 Space Engineering SpAvia dei Berio 91, 00155 Roma Italy Phone. +39 06 225951, Fax. ...
The state of art of GALILEO Signal In Space specifications has been implemented by Space Engineer... more The state of art of GALILEO Signal In Space specifications has been implemented by Space Engineering GALILEO Simulator. The design and quality test results of this Professional Instrument, aimed to support GALILEO receiver development, will be described in this Paper. The current version is compatible with SIS ICD vers. 12.0, but would allow easy migration to MBOC for L1 carrier, when this specification will be formalized by a new SIS ICD release. For what concern the E5 signal the Simulator is a truly Alt-BOC coherent generator allowing a 120MHz analog Bandwidth being generated digitally and not as two separate E5a and E5b analog signals. The current version of Space Engineering Signal In Space Simulator allow to generate up to four Satellites for all the three carriers L1, E5 and E6 simultaneously and it is a self contained unit, complete of AC power supplying adapter and fan cooling system, arranged in a single Compact-PCI (C-PCI)19" Rack.
Growing interest is currently being paid to the possibility of offering a wide range of satellite... more Growing interest is currently being paid to the possibility of offering a wide range of satellite telecommunications services (including wideband services, the so-called multimedia) to Mobile Terminals (MTs), either land-mobile, maritime or aeronautical, operating in the 20/30 GHz range (SHF) and eventually in the 40/50 GHz range (EHF). This interest is also witnessed by the fact that the European Commission
2012 IEEE First AESS European Conference on Satellite Telecommunications (ESTEL), 2012
ABSTRACT The paper describes an optimized solution for the a Galileo Pseudolite based on a Transc... more ABSTRACT The paper describes an optimized solution for the a Galileo Pseudolite based on a Transceiver consisting in the integration of a very accurate dual carrier (programmable E1-E6 or E1-E5) GALILEO Signal In Space Generator and a matched dual carrier GALILEO precision Time Receiver in a very compact (16 mm by 10 mm) state of art Software Radio Hardware platform. This solution simplifies the synchronization of the pseudolite to a system time without the necessity to foresee the presence of dedicate infrastructure such as reference station.
The work associated to this article is a study initiative sponsored by ESA/ESTEC that responds to... more The work associated to this article is a study initiative sponsored by ESA/ESTEC that responds to the crucial need of developing new Satellite payload aimed at making rapid progresses in handling large amounts of data at a competitive price with respect to terrestrial one in the telecommunication field. Considering the quite limited band allowed to space communications at Ka band, reusing the same band in a large number of beams is mandatory: therefore beam-forming is the right technological answer. Technological progresses - mainly in the digital domain - also help greatly in increasing the satellite capacity. Next Satellite payload target are set in throughput range of 50Gbps. Despite the fact that the implementation of a wideband transparent processor for a high capacity communication payload is a very challenging task, Space Engineering team in the frame of this ESA study proposed an intermediate step of development for a scalable unit able to demonstrate both the capacity and f...
VINAG (VISION/INS integrated Navigation Assisted by GNSS) is a highly integrated multisensor navi... more VINAG (VISION/INS integrated Navigation Assisted by GNSS) is a highly integrated multisensor navigation unit, particularly conceived for On-Orbit Servicing missions. The system is designed to provide all-in-one, on-board real time autonomous absolute navigation as well as pose determination of an uncooperative known object orbiting in LEO (Low Earth Orbit), GEO (GEosynchronous Orbits) and possibly in HEO (Highly Earth Orbit). The system VINAG is under development by a team of Italian companies and universities, co-financed by the Italian Space Agency. Thanks to a tight optimized integration of its subsystems, VINAG is characterized by a low power and mass total budgets and therefore it is suitable for small and very small satellites. In order to provide both 1) absolute orbit and attitude determination and 2) vision-based pose determination, the unit integrates three metrology systems: a Cameras Subsystem (a monocular camera and a Star sensor), an Inertial Measurement Unit (IMU) and...
2012 IEEE First AESS European Conference on Satellite Telecommunications (ESTEL), 2012
ABSTRACT The paper describes an optimized solution for the a Galileo Pseudolite based on a Transc... more ABSTRACT The paper describes an optimized solution for the a Galileo Pseudolite based on a Transceiver consisting in the integration of a very accurate dual carrier (programmable E1-E6 or E1-E5) GALILEO Signal In Space Generator and a matched dual carrier GALILEO precision Time Receiver in a very compact (16 mm by 10 mm) state of art Software Radio Hardware platform. This solution simplifies the synchronization of the pseudolite to a system time without the necessity to foresee the presence of dedicate infrastructure such as reference station.
VINAG (VISION/INS integrated Navigation Assisted by GNSS) is a highly integrated multisensor navi... more VINAG (VISION/INS integrated Navigation Assisted by GNSS) is a highly integrated multisensor navigation unit, particularly conceived for On-Orbit Servicing missions. The system is designed to provide all-in-one, on-board real time autonomous absolute navigation as well as pose determination of an uncooperative known object orbiting in LEO (Low Earth Orbit), GEO (GEosynchronous Orbits) and possibly in HEO (Highly Earth Orbit). The system VINAG is under development by a team of Italian companies and universities, co-financed by the Italian Space Agency. Thanks to a tight optimized integration of its subsystems, VINAG is characterized by a low power and mass total budgets and therefore it is suitable for small and very small satellites. In order to provide both 1) absolute orbit and attitude determination and 2) vision-based pose determination, the unit integrates three metrology systems: a Cameras Subsystem (a monocular camera and a Star sensor), an Inertial Measurement Unit (IMU) and...
Present work describes the algorithmic design and show the performance of a Turbo Decoder aimed f... more Present work describes the algorithmic design and show the performance of a Turbo Decoder aimed for low Eb/No working points (near Shannon limit) that was purposely design to work in a pragmatic approach with the following constellations QPSK, 8PSK, 16APSK, 16QAM. This Turbo Codec is based on a pure Turbo Codes implementation without the need of additional Reed Solomon Outer Codec. 1 Overview Turbo codes, first introduced in 1993, are a new way to construct concatenated codes able to achieve near Shannon-limit error correction in terms of BER. The presence of large interleavers and iterative feedback decoding allow reaching these results thanks to relatively simple structure. In a first issue turbo codes have been presented in parallel fashion, made up by two RSCs (Recursive Systematic Codes) and an interleaver. The progress of the study gets possible different choices in number, type and concatenation of coders to obtain solutions with different performances and complexity (both du...
ABSTRACT The work associated to this article is a study initiative sponsored by ESA/ESTEC that re... more ABSTRACT The work associated to this article is a study initiative sponsored by ESA/ESTEC that responds to the crucial need of developing new Satellite payload aimed at making rapid progresses in handling large amounts of data at a competitive price with respect to terrestrial one in the telecommunication field. Considering the quite limited band allowed to space communications at Ka band, reusing the same band in a large number of beams is mandatory: therefore beam-forming is the right technological answer. Technological progresses - mainly in the digital domain - also help greatly in increasing the satellite capacity. Next Satellite payload target are set in throughput range of 50Gbps. Despite the fact that the implementation of a wideband transparent processor for a high capacity communication payload is a very challenging task, Space Engineering team in the frame of this ESA study proposed an intermediate step of development for a scalable unit able to demonstrate both the capacity and flexibility objectives for different type of Wideband Beamforming antennas designs. To this aim the article describes the features of Wideband HW (analog and digital) platform purposely developed by Space Engineering in the frame of this ESA/ESTEC contract ("WDBFN" contract) with some preliminary system test results. The same platform and part of the associated SW will be used in the development and demonstration of the real payload digital front end Mux and Demux algorithms as well as the Beam Forming and on Board channel switching in frequency domain. At the time of this article writing, despite new FPGA and new ADC and DAC converters have become available as choices for wideband system implementation, the two HW platforms developed by Space Engineering, namely WDBFN ADC and DAC Boards, represent still the most performing units in terms of analog bandwidth, processing capability (in terms of FPGA module density), SERDES (SERiliazer DESerializers) external links density, integration form factor (6U C-PCI) and modularity (they are both rack mounted boards).
ABSTRACT The state of art of GALILEO Signal In Space specifications has been implemented by Space... more ABSTRACT The state of art of GALILEO Signal In Space specifications has been implemented by Space Engineering GALILEO Simulator. The design and quality test results of this Professional Instrument, aimed to support GALILEO receiver development, will be described in this Paper. The current version is compatible with SIS ICD vers. 12.0, but would allow easy migration to MBOC for L1 carrier, when this specification will be formalized by a new SIS ICD release. For what concern the E5 signal the Simulator is a truly Alt-BOC coherent generator allowing a 120MHz analog Bandwidth being generated digitally and not as two separate E5a and E5b analog signals. The current version of Space Engineering Signal In Space Simulator allow to generate up to four Satellites for all the three carriers L1, E5 and E6 simultaneously and it is a self contained unit, complete of AC power supplying adapter and fan cooling system, arranged in a single Compact-PCI (C-PCI)19" Rack.
8PSK Demodulator for new generation DVB-S2 T.Botticchio1 P.Burzigotti1 , R.Degaudenzi2, M.Luise3,... more 8PSK Demodulator for new generation DVB-S2 T.Botticchio1 P.Burzigotti1 , R.Degaudenzi2, M.Luise3, A.Martinez2, F.Richichi1 and P.Tabacco4. 1 Space Engineering SpAvia dei Berio 91, 00155 Roma Italy Phone. +39 06 225951, Fax. ...
The state of art of GALILEO Signal In Space specifications has been implemented by Space Engineer... more The state of art of GALILEO Signal In Space specifications has been implemented by Space Engineering GALILEO Simulator. The design and quality test results of this Professional Instrument, aimed to support GALILEO receiver development, will be described in this Paper. The current version is compatible with SIS ICD vers. 12.0, but would allow easy migration to MBOC for L1 carrier, when this specification will be formalized by a new SIS ICD release. For what concern the E5 signal the Simulator is a truly Alt-BOC coherent generator allowing a 120MHz analog Bandwidth being generated digitally and not as two separate E5a and E5b analog signals. The current version of Space Engineering Signal In Space Simulator allow to generate up to four Satellites for all the three carriers L1, E5 and E6 simultaneously and it is a self contained unit, complete of AC power supplying adapter and fan cooling system, arranged in a single Compact-PCI (C-PCI)19" Rack.
Growing interest is currently being paid to the possibility of offering a wide range of satellite... more Growing interest is currently being paid to the possibility of offering a wide range of satellite telecommunications services (including wideband services, the so-called multimedia) to Mobile Terminals (MTs), either land-mobile, maritime or aeronautical, operating in the 20/30 GHz range (SHF) and eventually in the 40/50 GHz range (EHF). This interest is also witnessed by the fact that the European Commission
2012 IEEE First AESS European Conference on Satellite Telecommunications (ESTEL), 2012
ABSTRACT The paper describes an optimized solution for the a Galileo Pseudolite based on a Transc... more ABSTRACT The paper describes an optimized solution for the a Galileo Pseudolite based on a Transceiver consisting in the integration of a very accurate dual carrier (programmable E1-E6 or E1-E5) GALILEO Signal In Space Generator and a matched dual carrier GALILEO precision Time Receiver in a very compact (16 mm by 10 mm) state of art Software Radio Hardware platform. This solution simplifies the synchronization of the pseudolite to a system time without the necessity to foresee the presence of dedicate infrastructure such as reference station.
The work associated to this article is a study initiative sponsored by ESA/ESTEC that responds to... more The work associated to this article is a study initiative sponsored by ESA/ESTEC that responds to the crucial need of developing new Satellite payload aimed at making rapid progresses in handling large amounts of data at a competitive price with respect to terrestrial one in the telecommunication field. Considering the quite limited band allowed to space communications at Ka band, reusing the same band in a large number of beams is mandatory: therefore beam-forming is the right technological answer. Technological progresses - mainly in the digital domain - also help greatly in increasing the satellite capacity. Next Satellite payload target are set in throughput range of 50Gbps. Despite the fact that the implementation of a wideband transparent processor for a high capacity communication payload is a very challenging task, Space Engineering team in the frame of this ESA study proposed an intermediate step of development for a scalable unit able to demonstrate both the capacity and f...
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