The US Advanced Research Projects Agency (DARPA) has contracted Leidos (LDOS) for Phase II of the Shared Spectrum Access for Radar and Communications (SSPARC) programme.

The $14m contract has an 11-month base period, and comes with an 11-month option.

Leidos will validate physical radar and communications systems by conducting laboratory testing and a field demonstration.

After a successful demonstration, the algorithms developed will enable increased radio frequency spectrum availability for both radar and communications systems.

Leidos Group president John Fratamico said: "We look forward to providing DARPA with real-time radio frequency management expertise to assist with the expansion of spectrum-sharing between radar, military radios, and commercial wireless systems."

"We look forward to providing DARPA with real-time radio frequency management expertise."

Work under the contract will be carried out primarily in Arlington, Virginia, US.

The SSPARC programme seeks to improve radar and communications capabilities through spectrum-sharing.

This project aims to develop new sharing technology that enables sufficient spectrum access within a desirable range below 6GHz.

The programme aims to support spectrum-sharing between military radars and both military and commercial communications systems.

Phase I involved the development of two interference mitigation mechanisms, coordinated frequency hopping, and main beam avoidance to allow shorter minimum stand-off distances.