The Office of Naval Research (ONR) in Arlington, Va., is issuing a broad agency announcement (BAA 10-003) for the JCREW 3.3 science and technology (S&T) program to improve existing JCREW IED detection and electronic warfare system hardware, software, techniques, and technologies.
First off, ONR scientists are interested in improved JCREW antennas. These should be lightweight, rugged, broadband mid-LF to mid-EHF antennas for vehicles and foot soldiers that make the most of bandwidth and keep reflected transmitted energy to a minimum.
These antennas must be able to transmit and receive simultaneously, handle hundreds of Watts of power for vehicle applications, tens of Watts for foot soldier applications, and provide communications and electronic warfare capabilities, direction finding, and geolocation of RF emission sources.
New JCREW software defined radio receivers and transmitters must be small, lightweight, low-power software-defined radio transceivers that operate from mid-LF to mid-EHF frequencies with wide instantaneous bandwidth, high dynamic range, and small-resolution bandwidths.
These transceivers must be instantaneous bandwidth on the order of 500 MHz per channel, dynamic range of more than 10 bits, and resolution bandwidth of 1 to 20 kHz. The transceivers must be able to operate in the presence of out-of-band, high-power transmissions with co-located transmit and receive and antennas.
These transceiver components must be able to support more than 100 MHz per channel instantaneous bandwidth, efficiencies of more than 40 percent.
