Precision EW Situation Awareness, Targeting, and SEAD Demonstrations
Objectives.—-
Provide ground vehicles and rotary-wing, tactical, and special operations aircraft with the
precision location of emitters for situation awareness, targeting, and combat ID assistance. A coordinated
multiservice program will develop and demonstrate those technologies needed for the uniquely different
characteristics and missions of the subject air platforms and ground vehicles.
Payoffs.—-
By increasing the number of electronic support (ES) sensors in the tactical-level battlespace via
the networking of platforms equipped with passive detection and accurate space–time reference (STR)
systems, the warfighter will be provided with an unambiguous and unified picture of the battlefield with
unprecedented targeting fidelity. The Army’s Integrated Situation Awareness and Targeting (ISAT) ATD
program pursues the modular integration of the RF, IR, and EO spectrums to produce that picture for the
“low/slow” movers (rotary-wing and ground vehicles). ISAT will enable reduced decision timelines for
defensive/offensive actions, target acquisition and identification, and antifratricide; it is intended for
future upgrade programs (ALQ–211, –212, AVR–2A, and VVR–1). From the “high/fast” electronic
combat suppression of enemy air defense (EC SEAD) perspective, missions today are accomplished in
the face of new electronic order-of-battle and enemy air defender tactics and with a reduced U.S. force
structure that has all but eliminated dedicated SEAD aircraft. The AF Precision Location and
Identification (PLAID) program capability (unambiguous radar warning/threat geolocation (e.g., ALR–
69, –56 C/M)) will feed an advanced SEAD targeting (AST) effort to pursue electronic-support (ES)-
based precision targeting. Intended for existing multimission/multirole airframes, AST will specifically
enable the use of shoot-to-coordinate precision-guided munitions, thereby negating emitter shutdown
tactics. In addition, the PLAID system has entered into an engineering and manufacturing effort for
insertion into the ALR–69 Radar Warning Receiver.
Challenges.—-
Detection and discrimination of SAMs and AGMs with terrain maps to geolocate launch
sites will be the principal challenge for the multispectral sensor low/slow applications. The sensors must
operate under all battlefield atmospheric and environmental conditions (rotary-wing/ground vehicle).
Receiver architectures capable of the precision time of arrival (TOA)/time difference of arrival (TDOA)
and the required fine frequency measurements stress the limits of sub-nanosecond digital receiver
parameter measurement technology. Unconstrained air engagement geometries dictate high-sensitivity
approaches in order to conduct missions in emitter sidelobes. STR and precision clock technologies for
real-time data alignment are critical to the 7D (time, position, and velocity) registration of the air
battlespace. Finally, Cdatalink techniques are critical to minimizing latencies in distributed ES
collection management and coordination of receiver dwells among multiple platforms.
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