In 2021 SES will be launching its next-generation MEO (Medium Earth Orbit) satellite system called O3b mPOWER – a powerful, flexible, and scalable satellite-based system capable of delivering multiple terabits of throughput with extremely low latency. O3b mPOWER comprises advanced communication satellites, innovative ground infrastructure and intelligent software to deliver exceptionally high bandwidth connectivity to nearly 80 percent of the Earth’s surface.
O3b mPOWER will complement the existing multi-orbit fleet of Medium Earth Orbit (MEO) and Geostationary Earth Orbit (GEO) satellites that SES already operates. It will give the U.S. Department of Defense customers a new tool in enabling digital and network-connected platforms. In fact, the O3b mPOWER capabilities provide an advantage for a number of use cases across practically every domain of operation – including land, sea and air.
Within the air domain, there are multiple, disparate platforms of operation that all have unique requirements. Each of these three platforms – unmanned aerial vehicles (UAVs), transport aircraft and manned aircraft – can benefit from the advanced capabilities that will be enabled by O3b mPOWER.
To learn more about the requirements of these platforms and how O3b mPOWER could benefit them each, individually, we sat down with two members of the SES Space and Defense team, Eric Gunzelman and Mike Blefko. Our conversation began with one of the military’s most recent and relied upon platforms – UAVs.
Here is what they had to say:
Government Satellite Report (GSR): What process is currently in place for getting ISR data from UAVs? Can the data be collected and delivered in real-time?
Eric Gunzelman: There are currently multiple methods for uploading data from a UAV that range in sophistication and speed. There are sophisticated, point-to-point links via air-to-ground or air-to-satellite-to-ground. There are also less sophisticated methods that involve landing the plane in order to access and subsequently ship a hard drive.
Mike Blefko: When it comes to ISR data, timely delivery is of the utmost importance. The more recent intelligence information is, the more accurate it is, and the better it is for situational awareness, mission planning and mission command. Ideally, decision makers would get access to quality ISR data – such as HD video – in real-time so that it is up-to-date and reliable.
That’s why the process that Eric described of landing a UAV and physically shipping a hard drive is not ideal – since the data – much of which is comprised of multiple large files – needs to be accessed in real-time.
GSR: What types of sensors are found on ISR UAVs? How much data do they produce? How has this changed in recent history?
Mike Blefko: There are numerous sensors on UAV platforms. The number of sensors has increased over the years as electronics have miniaturized. These sensors can include visual, infrared, optical and other airframe state-of-health sensors.
Eric Gunzelman: That’s something that I think is important to realize: sophisticated ISR sensors have exponentially increased the amount of data that needs to be offloaded from the UAV.
When you combine the data generated from airframe sensors and the data generated by ISR sensors, it’s easy to see why the amount of bandwidth needed to and from the aircraft has jumped significantly. In fact, I recently read an Avascent industry briefing that showed the total number of UAVs and the total data rate from those UAVs will both double between 2015 and 2025. That’s going to require a lot more bandwidth.
GSR: How are the connectivity requirements of UAVs different from other aircraft?
Mike Blefko: While many aircraft are strictly being pushed information, UAVs are typically collecting data locally and then sending it via the uplink path back to the base. They need just as much uplink capacity as they need downlink capacity.
This is why O3b mPOWER is such an effective solution for UAVs, specifically. Unlike other satellite networks, O3b mPOWER provides a significant upload path to address these types of applications.
GSR: Aside from the larger uplink capacity, what else about O3b mPOWER makes it a good solution for UAVs?
Eric Gunzelman: O3b mPOWER is a Medium Earth Orbit (MEO) constellation. When compared to traditional satellite constellations at Geostationary Orbit (GEO), just the physical proximity of a MEO constellation to Earth reduces the overall latency.
This means that large file transfers and voice communications will experience less than 150 milliseconds of latency roundtrip. Low latency coupled with high throughput and O3b mPOWER’s ability to dynamically allocate bandwidth and power in near-real-time while flying a mission enables mission planners to decide to use all of the sensors, part of the payload or reconfigure sensors in-flight, as dictated by the mission requirements. The result is a higher level of flexibility to adapt to the changing mission requirements as well as faster transmission of voice, video, including UHD, and data packets that do not need to be compressed.
GSR: How does O3b mPOWER compare with the original O3b constellation? What additional benefits will O3b mPOWER deliver?
Mike Blefko: With O3b mPOWER, we scale the proven concept of MEO, that we are currently delivering to our customers. Both the O3b mPOWER and the current O3b satellites are stationed at MEO, so the latency is the same. However, the wider bandwidth and channelization on O3b mPOWER allows up to 2500 MHz of bandwidth to be delivered – that’s about ten times more data for the same sized terminal when compared to the original O3b MEO satellites.
The difference is the amount of bandwidth available and the flexibility. As the Avascent industry briefing showed, the number of UAVs is going to double by 2025. The number of sensors on each UAV is going to double over that same period of time. The bandwidth requirements to get that actionable data back to decision makers in real-time are going to increase exponentially. O3b mPOWER will be capable of meeting and exceeding those bandwidth requirements.