Ultrawideband Vector Sensors and Signal Processing for Precision Direction Finding and Geolocation

ASI has developed, and is refining and extending, new, patented, ultrawideband vector sensor and signal processing technologies for Electronic Support Measures (ESM), Signals Intelligence (SIGINT), and Communications Intelligence (COMINT), including, instantaneous Radio Frequency (RF) Direction Finding (DF) of communication, radar, and wideband, noise-like, waveforms. ASI delivers software defined radios, vector sensor antennas and processors to its customers, and supports platform integrations, system integrations, and, Concept of Operations (CONOPS) development.

ASI’s vector sensor is electrically small (<10% wavelength), very lightweight (non-ferrous) and has extremely wide instantaneous bandwidth (e.g., 1 MHz to 1 GHz from a single aperture). These differentiators enable small, survivable, expendable and attritable, unmanned air, land and sea vehicles to deliver functionality previously available only on much larger platforms.

In a small volume of space, our vector sensors measure the instantaneous electric and magnetic fields at a single common, point in space. An array measures all 6 field components, both E and H fields, in all three dimensions (x, y, z). As such, it is 3D as it covers all space, and it is fully polarimetric. ASI’s vector sensor is beyond ultrawideband in that its instantaneous bandwidth can approach twice its center frequency. Single elements can operate from below HF to L-band, or from L to X-band. Because they are 3D, fully polarimetric, ultrawideband, and small, a small array enables DF against agile complex waveforms from a single small platform.

Capability Previously Available Only On Much Larger Platforms

	Boeing®  Insitu® ScanEagle® UAV HF, VHF and UHF direction finding No outer molding line extrusions to deliver design endurance No mechanical interference on launch and recovery Operation to 10,000’ AMSL DF on waveforms including HF NVIS, digital HF and Digital Mobile Radio (DMR)
	Tethered UAV Just-In-Time-Tower (JITT) for Persistent Surveillance Altitudes to 500’ AGL Optical fiber for control and data to 20 Gbps, no RF emissions HF, VHF and UHF DF available now DF to 6 GHz available Q4’18
	Beechcraft® King Air® 200 and 350 Integrations with standard King Air® radomes and cargo pods Integrations to mission planning software and EO/IR cameras HF, VHF and UHF DF available now Extension for DF to 6 GHz available Q4’18 Contact company for agile and complex waveforms
	Patrol Boats Carry-on Carry-off systems Wideband surveillance and DF Fast patrol boats 11m RIB, SURC
	Liquid Robotics® Wave Glider® Wideband surveillance and DF Long duration operations Real-time, beyond line of sight communications and control Wet tests Q4’18
	Manpack Fully concealable, low-profile, DF HF, VHF and UHF available now Standard waveforms include HF NVIS, digital HF and Digital Mobile Radio Contact company for extension to higher frequencies
	Ground Vehicle Integrations Integrations onto manned and unmanned Ground Vehicles Operating band to 6 GHz Contact company for agile and complex waveforms