{"title":"SBG Systems","description":"\u003ch2\u003eSBG Systems: MEMS inertial sensors for onboard attitude and navigation\u003c\/h2\u003e\n\u003cp\u003eSBG Systems is a French manufacturer, founded in 2007 and based near Paris, which designs, manufactures, and supports its inertial sensors. Its Ellipse range includes miniature MEMS-based inertial sensors, available in an IP68 waterproof enclosure with serial connectors or as an OEM version for board integration.\u003c\/p\u003e\n\u003cp\u003eOnboard, two uses dominate. The Ellipse-A is an AHRS: it provides attitude—roll, pitch, and heading—but no position. The Ellipse-D is an inertial navigation system that integrates a dual-antenna, dual-frequency, multi-constellation, RTK-compatible GNSS receiver: it adds position, velocity, and time. In the Skysat catalog, SBG covers MEMS inertial navigation; Exail covers fiber optic gyroscope-based systems.\u003c\/p\u003e\n\u003ch3\u003eWhy Skysat distributes SBG\u003c\/h3\u003e\n\u003cp\u003eAn inertial sensor is only installed correctly if its integration is prepared using documentation. SBG publishes free access to the pinouts, interfaces, output protocols, and accessories of the Ellipse range: wiring and configuration are validated before ordering, not after.\u003c\/p\u003e\n\u003ch3\u003eMain product lines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEllipse-A Marine (AHRS)\u003c\/strong\u003e — attitude (roll, pitch, heading) and heave, without position. Sold by quote.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEllipse-D Marine (dual-antenna GNSS INS)\u003c\/strong\u003e — adds position, velocity, and time thanks to its dual-antenna, dual-frequency, RTK-compatible GNSS receiver. Sold by quote.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEllipse-D Kit\u003c\/strong\u003e — Ellipse-D Marine sensor in an enclosure and two TW3972 GNSS antennas. Antenna connections are defined according to the installation. Sold by quote.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGNSS TW3972 Antenna\u003c\/strong\u003e — triple-band antenna with L-Band, manufactured by Tallysman, which SBG recommends when the sky is not entirely clear and RTK coverage is important.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB to RS-232 Cable, 3 m (CA-ELI-USB-3M)\u003c\/strong\u003e — connects an Ellipse to a computer for configuration; its USB plug integrates an RS-232 to USB converter and powers the sensor. SBG declares it mandatory for the first purchase of a boxed Ellipse.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHighlighted technical features\u003c\/h3\u003e\n\u003ch4\u003eMarine Version\u003c\/h4\u003e\n\u003cp\u003eAccelerometers ±8 g, gyroscopes ±450 °\/s, and heave measurement. Land\/Air and High Dynamics versions do not measure heave.\u003c\/p\u003e\n\u003ch4\u003eInterfaces\u003c\/h4\u003e\n\u003cp\u003eThe two sensors in the catalog, the Ellipse-A 100-2489 and the Ellipse-D 100-2422, are B1 revisions, without a CAN bus. Their main port operates in RS-232, or in RS-422 when its pin 5 is connected to ground; SBG provides the CA-ELI-RS422-3M cable for this mode. In an enclosure, they offer up to three serial links (ports A, B, and E). Outputs use the sbgECom binary protocol or standard and third-party protocols, including NMEA, RTCM, and TSS1.\u003c\/p\u003e\n\u003ch4\u003ePower and enclosure\u003c\/h4\u003e\n\u003cp\u003ePower supply from 5 to 36 V. Power consumption at 12 V: 300 mW for the Ellipse-A, 900 mW for the Ellipse-D without antennas, and 1,050 mW with. IP68 waterproof enclosure.\u003c\/p\u003e\n\u003ch4\u003eOrigin\u003c\/h4\u003e\n\u003cp\u003eA French company, SBG Systems designs, manufactures, and supports its sensors.\u003c\/p\u003e\n\u003ch3\u003eSkysat Advice\u003c\/h3\u003e\n\u003cp\u003eStart with the need: the Ellipse-A is sufficient when only attitude matters; the Ellipse-D is justified when position, velocity, and time provided by its dual-antenna GNSS receiver are also required. Our two references are B1 revisions: plan for an RS-232 or RS-422 connection, no CAN. For configuration, the CA-ELI-USB-3M cable powers the sensor via USB; the CA-ELI-D-USB-3M, with a separate power plug, is only for older generations of Ellipse-D. No bus or driver is compatible by default: each link is validated against the protocol and frames expected by the receiving device. Skysat installs inertial sensors onboard, primarily SBG and Exail. Our design office can arrange a call to choose the model, interfaces, mounting, and configuration. The sensors are sold by quote. For comparison, see the \u003ca href=\"\/en-gb\/collections\/exail\"\u003eExail\u003c\/a\u003e collection and all \u003ca href=\"\/en-gb\/collections\/centrales-inertielles\"\u003einertial sensors\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eTarget markets\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOffshore racing and performance sailboats\u003c\/li\u003e\n\u003cli\u003eProfessional vessels and workboats\u003c\/li\u003e\n\u003cli\u003eShipyards and integrators, for new builds and refits\u003c\/li\u003e\n\u003cli\u003eOnboard measurement and instrumentation projects\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"sbg-cable-ellipse-usb-rs232-ca-eli-usb-3m","title":"SBG Ellipse USB to RS-232 Cable - 3 m","description":"\u003cp\u003eThe SBG Systems CA-ELI-USB-3M cable connects an Ellipse IMU to a computer via USB with built-in RS-232 interface.\u003c\/p\u003e\n\u003cp\u003eThe 3 m length simplifies configuration, diagnostics, and data retrieval during installation. Verify exact compatibility with your SBG Ellipse unit and existing wiring before ordering.\u003c\/p\u003e","brand":"SBG Systems","offers":[{"title":"Default Title","offer_id":53723745976660,"sku":"CA-ELI-USB-3M","price":157.14,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/featured-upscaled-12506539098452-1000.jpg?v=1783601186"},{"product_id":"sbg-systems-ellipse-a-marine-ahrs-centrale-inertielle","title":"SBG Ellipse A Marine AHRS Inertial Measurement Unit","description":"\u003cp\u003eThe \u003cstrong\u003eSBG Ellipse A Marine AHRS\u003c\/strong\u003e inertial measurement unit is a compact and rugged attitude and heading reference system (AHRS) designed for precise determination of orientation and heave in dynamic marine environments. Integrating an industrial-grade MEMS-based inertial measurement unit (IMU) and calibrated magnetometers, it provides reliable data for demanding applications such as underwater navigation, equipment stabilization, and surface motion tracking.\u003c\/p\u003e\n\u003ch3\u003eTechnical performance and accuracy\u003c\/h3\u003e\u003cp\u003eThe Ellipse A delivers exceptional attitude accuracy with a roll and pitch error of 0.1° in static mode, and 0.4° in dynamic marine conditions. Magnetic heading is provided with an accuracy of 0.8° in static mode after calibration, under a homogeneous magnetic field. A next-generation heave algorithm automatically adjusts wave period (up to 15–20 seconds), ensuring an accuracy of 5 cm or 5% (whichever is greater), critical for bathymetric surveys and dynamic positioning systems.\u003c\/p\u003e\n\u003cp\u003eOnboard sensors include accelerometers (marine range ±8 g), gyroscopes (marine range ±450 °\/s), and magnetometers (50 Gauss range). These sensors are paired with advanced filters for effective vibration management (8 g RMS resistance from 20 Hz to 2 kHz per MIL-STD 810G) and sophisticated magnetic calibration for enhanced robustness against transient magnetic disturbances. The IMU data output rate can reach 1 kHz, ensuring optimal responsiveness for stabilization and pointing applications.\u003c\/p\u003e","brand":"SBG Systems","offers":[{"title":"Ellipse A \/ Standalone display unit","offer_id":53723746107732,"sku":"100-2489","price":2180.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/ellipse-a-ahrs-unit-right.png?v=1778229831"},{"product_id":"sbg-systems-ellipse-d-marine-centrale-inertielle-gnss-double-antenne","title":"SBG Ellipse D Marine Inertial Navigation System","description":"\u003cp\u003eThe \u003cstrong\u003eSBG Ellipse D Marine Inertial Navigation System\u003c\/strong\u003e (ref. 875-0010) is a compact and rugged inertial navigation system (INS) with GNSS assistance, designed for demanding marine and offshore applications such as hydrography, autonomous surface vehicles (USV), marine robotics, and mobile mapping. This sensor integrates an inertial measurement unit (IMU) and a dual-band, quad-constellation internal GNSS receiver, complemented by advanced sensor fusion algorithms, ensuring accurate position and orientation even in the most challenging environments.\u003c\/p\u003e\n\u003ch3\u003ePositioning and Orientation Accuracy\u003c\/h3\u003e\u003cp\u003eThe Ellipse D Marine stands out for its precision. In horizontal position, it achieves 1.2 m in single-point mode, and an RTK performance of 0.01 m + 1 ppm, comparable to larger systems. For applications requiring extreme precision, PPK post-processing offers horizontal accuracy of 0.01 m + 0.5 ppm. Regarding orientation, roll and pitch are measured with an accuracy of 0.1° in single-point mode, improving to 0.05° in RTK and 0.03° in PPK. Heading, thanks to its dual antenna, is stable at 0.2°, and can reach 0.1° with PPK post-processing. Heave compensation is self-adjusting, ensuring an accuracy of 5 cm or 5% of the heave (whichever is greater) for wave periods ranging from 0 to 20 seconds.\u003c\/p\u003e","brand":"SBG Systems","offers":[{"title":"Ellipse D \/ Standalone display unit","offer_id":53723746369876,"sku":"100-2422","price":7064.1,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/ellipse-d-ins-unit-right.png?v=1778229811"},{"product_id":"sbg-ellipse-d-kit-systeme-navigation-inertielle-gnss","title":"SBG Ellipse D Kit","description":"\u003cp\u003eThe SBG Ellipse-D kit is a base configuration for dual-antenna marine inertial GNSS navigation. It includes an SBG Ellipse-D Marine inertial measurement unit (IMU) in a housing version, with a default serial interface, and two TW3972 triple-band GNSS antennas with L-Band.\u003c\/p\u003e\n\u003cp\u003eThe cabling between the inertial measurement unit and the GPS antennas is not fixed in this base kit: the length and composition of the two antenna links must be confirmed based on the installation. One link per antenna is required.\u003c\/p\u003e\n\u003cp\u003eThe SBG Ellipse USB to RS-232 3 m cable, used for configuration and commissioning, is offered as a separate accessory.\u003c\/p\u003e\n\u003cp\u003eAt the core of the system, the Ellipse-D combines a dual-antenna multi-band L1\/L2 GNSS receiver with advanced sensor fusion algorithms. The housing version is compact, rugged, and suited for demanding marine environments, providing attitude, heading, position, and heave measurements depending on the selected configuration.\u003c\/p\u003e","brand":"SBG Systems","offers":[{"title":"Ellipse D \/ Complete kit","offer_id":53723747746132,"sku":"KITSBG","price":7919.78,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/ellipse-d-ins-unit-right_127864af-fb31-4ccb-9155-f5c7e7602aa6.png?v=1778229898"},{"product_id":"tallysman-tw3972-antenne-gnss-triple-bande-l-band","title":"SBG - Ellipse D GNSS Triple-Band Antenna with L-Band - TW3972","description":"\u003cp\u003eThe Tallysman TW3972 triple-band GNSS antenna, offered by Pixel sur Mer, is designed for demanding maritime and terrestrial applications requiring high positioning accuracy. Featuring Accutenna® technology, this antenna ensures extended coverage of GNSS constellations, including GPS L1\/L2\/L5, GLONASS G1\/G2\/G3, BeiDou B1\/B2\/B2a, Galileo E1\/E5a+b, NavIC L5, as well as L-band correction services and SBAS (WAAS, EGNOS, MSAS, GAGAN). It is particularly suited for triple-frequency RTK and PPP receivers.\u003c\/p\u003e\n\u003ch3\u003eTechnical performance and robustness\u003c\/h3\u003e\u003cp\u003eThe TW3972 stands out for its dual-stacked patch architecture with dual circular feed, precisely tuned. Signals from the two orthogonal feeds are combined and amplified by a wideband LNA, then narrowly filtered for each band before recombination. This design ensures superior multipath signal rejection, linear phase response, and very low phase center variation (PCV). The LNA preamplifier features very low noise (\u003c 2.5 dB typ.) and high gain (37 dB typ.), optimizing the signal-to-noise ratio. A robust pre-filter is integrated to attenuate interference from LTE and cellular bands, including Ligado.\u003c\/p\u003e","brand":"SBG Systems","offers":[{"title":"Default Title","offer_id":53723748434260,"sku":"873-0037","price":435.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/tw3972-antenna.png?v=1778229791"},{"product_id":"sbg-ellipse-marine-centrales-kit","title":"SBG Ellipse Marine - IMUs and kits","description":"\u003cp\u003eSBG Ellipse Marine units cover inertial measurement, attitude, and precise navigation needs aboard.\u003c\/p\u003e\n\u003cp\u003eEllipse A is suited for AHRS functions, Ellipse D adds GNSS\/INS positioning, and the kit includes accessories for a complete installation.\u003c\/p\u003e","brand":"SBG Systems","offers":[{"title":"Ellipse A \/ Standalone display unit","offer_id":53723746107732,"sku":"100-2489","price":2180.0,"currency_code":"EUR","in_stock":false},{"title":"Ellipse D \/ Standalone display unit","offer_id":53723746369876,"sku":"100-2422","price":7064.1,"currency_code":"EUR","in_stock":false},{"title":"Ellipse D \/ Complete kit","offer_id":53723747746132,"sku":"KITSBG","price":7919.78,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/files\/ellipse-a-ahrs-unit-right.png?v=1778229831"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3274\/4788\/collections\/sbg-systems-logo.png?v=1790243630","url":"https:\/\/skysat.fr\/en-gb\/collections\/sbg-systems.oembed","provider":"Skysat","version":"1.0","type":"link"}