How the Army will use satellites to track land threats in real time

By: Nathan Strout 

Source Link

The Army has needs.

One of those needs is the ability to track and target land threats that are beyond the war fighters’ line of sight. Though much of the focus on space sensing capabilities is directed at missile defense or space situational awareness, the ability to see time-sensitive ground threats like tanks beyond the line of sight of ground forces is essential for the war fighter. To help build this capability, the Army is teaming with the Space Development Agency on a space-based sensor layer dedicated to deep targeting that can feed information to the war fighter on the ground in real time.

The SDA is actually developing a trio of sensing capabilities in space: a layer dedicated to tracking hypersonic weapons and ballistic missiles; a layer dedicated to space situational awareness and investigating objects in cislunar orbit; and a layer dedicated to detecting and maintaining custody of time-sensitive ground threats.

While it’s certainly not as sexy as hypersonics defense, it’s that final sensing capability that the Army is most interested in.

“That’s where the Army is most affected and that’s where we’re working very closely with the Army to make sure that we’re tied together. So this is the ability to detect and track and maintain custody of anything, say, larger than a truck and to be able to actually give a targeting fire control solution to a weapon in the field in real time anywhere on the globe,” said SDA acting-Director Derek Tournear at the annual Association of the U.S. Army conference Oct. 16. “That’s the goal. That’s the capability.”

The Army has experimented with providing real-time satellite imagery to the war fighter in recent years with its pathfinder Kestrel Eye program. The small satellite experiment showed how the Army could task a sensor in LEO orbit to take images of the battlefield and then downlink them to the war fighter in real time.

But the Army wants to do more than that. While Kestrel Eye simply produced images and delivered them to the war fighter, the Army needs to be able to detect and track ground level threats automatically. Instead of just delivering images to war fighters, the goal is to deliver targeting solutions to the war fighter based on those satellite images.

To achieve this, the SDA told C4ISRNET in a follow-up email that their “plan is to perform image formation and simple automatic target recognition onboard the custody satellites."

That data will then be moved to the SDA’s transport layer, which Tournear called the backbone of their architecture. The transport layer will be a satellite capability that facilitates the movement of data between satellites and then between satellites and the ground. Once target recognition is completed in the custody layer, data will be moved to the transport layer, where it will be fused and transformed into targeting solutions.

The SDA did note that based on mission-partner requirements some detailed processing and data fusion will be conducted on the ground, with the resultant targeting solutions then being transmitted back up to the transport layer.

Whether produced in the transport layer or on the ground, once those targeting solutions are ready and in the transport layer they will be downlinked and distributed to the war fighter through a tactical data link like Link-16 or through a ground station like Titan, explained Tournear.

All of this will take place at lightning fast speeds, as the goal is to get targeting solutions for beyond line-of-sight ground threats to the war fighters on the battlefield in real time. In developing this capability, Tournear said that other organizations would be responsible for developing the sensors that will be used, the SDA will develop the transport layer that transforms the sensor data into targeting solutions and delivers it to the war fighter.

“We’re working with our partners to build out those sensing satellites and be able to plug in seamlessly to our transport layer to do that real-time [communication],” said Tournear.

Tournear told reporters in September that a solicitation a transportation layer demo would be issued “imminently.”