Army Uses Technology to Increase Aerial Delivery Accuracy

June 13, 2016

Members of the Georgia National Guard during a Pathfinder aerial operation benefiting from the data provided by the Man-Portable Doppler LiDAR system. (U.S. Army Photo)

Researchers at the U.S. Army Research Laboratory have developed a new system that will enhance the capabilities of U.S. Army Pathfinders as they conduct aerial operations. In response to a Request for Information from the U.S. Army-Africa to remove what is known as the pilot balloon from the battlefield, ARL undertook a program to reduce the size, weight and power of current commercial-off-the-shelf Doppler Light Detection and Ranging, or LiDAR, systems. The pilot balloon is a small, helium-filled balloon that is released and tracked to measure a wind profile in support of personnel and precision airdrop operations.

Partnering with two companies, Beyond Photonics and Halo Photonics, ARL has developed a Man-Portable Doppler, or MPDL, LiDAR system that meets the requirements. The total system weighs less than 45 pounds, is under two cubic feet and operates on standard 24-volt batteries with required power of less than 100 watts. This reduction in overall SWaP has not impacted the system's operational capabilities as compared to its predecessor, highly accurate Doppler LiDAR systems.

"Pathfinders currently face challenges impacting operations and warfighter safety," said Deryck James, meteorological technician in ARL's Atmospheric Sensing Branch and combat veteran. "Employing Man Portable Doppler LiDAR and other LiDAR systems provide the Pathfinder with capabilities to enhance precision airdrops and enhance environmental awareness for Army operations."

James said that the MPDL also provides the Pathfinder with a capability for forward-area precision airdrop operations, providing for greater delivery of supplies on target, reduction on supplies loss, enhanced drop zone possibilities, improved safety for personnel and increased mission success.

The modern U.S. Army Pathfinders are an elite force making up less than one percent of the total Army. Their primary mission is to infiltrate areas and set up parachute drop zones and helicopter landing zones for airborne and air-assault missions.

James and Dr. David Ligon, also from the laboratory's Atmospheric Sensing Branch, recently trained members of the Georgia National Guard on the new system. In addition to this training, Soldiers from the Georgia National Guard will be trained by ARL on the use of the Doppler LiDAR system prior to their deployment to the Central Accord 2016 joint exercises in Gabon, Africa this summer. James is slated to accompany the Soldiers on the mission.

If the rugged and versatile MPDL performs as expected, it will likely be selected by USARAF to remove the oftentimes unreliable and inaccurate, helium-dependent pilot balloon from the battlefield, providing soldiers with a much needed modern capability that increases the accuracy of aerial delivery operations.

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