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Home > Technologies >Mission Planning > Search Optimization > ASUWTDA
Anti-Surface Warfare Tactical
Decision Aid (ASUWTDA)
Contents
Introduction
In this Phase II SBIR project, Daniel H. Wagner Associates completed the development
of Build 1.0 of the Anti-Surface Warfare Tactical Decision Aid
(ASUWTDA) JMCIS segment and successfully introduced it to fleet
users. A version of ASUWTDA Build 1.0 compatible with DII COE
3.0.2.5 was also delivered to NRaD for the JMCIS 98 OPEVAL. ASUWTDA
Build 1 provides an automated tactical decision aid to assist
the fleet planner in carrying out the non-acoustic Surface Warfare
(SUW)/Undersea Warfare (USW) area surveillance planning process.
ASUWTDA Build 1 provides important new fleet capabilities. It -
- provides sortie-level planning,
- generates recommended search plans, and
- evaluates overall surveillance effectiveness.
The principle ASUWTDA outputs are -
- recommended search assignments,
- a clearance map which shows the effectiveness of the area
surveillance efforts at
- a time of interest,
- a timeline which shows the effectiveness of the area surveillance
efforts over a 24 hour period,
- a table showing the effectiveness of each individual search
asset, and
- graphical displays of the location of each search asset.
ASUWTDA Build 1 includes such important littoral considerations
as -
- high shipping density,
- contact diversity,
- threat bases,
- territorial stand-offs, and
- multiple high-interest zones.
When evaluating and optimizing search effectiveness, ASUWTDA
uses multiple databases. These consist of databases which are
rarely changed, and databases which can be updated daily depending
on the tactical situation. The databases which are rarely changed
are -
- own-force sensor types,
- own-force sensor capabilities (in day, night, poor weather,
and user-defined conditions),
- own-force aircraft types,
- own-force aircraft flight profiles,
- own-force aircraft assets (with non-acoustic sensors),
- battlegroup surface and subsurface assets (with non-acoustic
sensors),
- territorial stand-off ranges,
- historical shipping densities, and
- generic target sizes.
ASUWTDA is delivered with default versions of these databases,
and the classified version of the ASUWTDA system comes with default
sensor capability and flight profile databases built using data
from SECOND FLEET and THIRD FLEET surface surveillance TACMEMOs
and TACNOTEs. The operator can generate variations for each of
these databases based on experience, observation, or assigned
forces. Newly generated databases do not affect default databases.
The databases which may be changed daily by the operator are -
- contacts-of-interest in which the operator selects the
smallest-sized contact that will be the
- object of searches and
defines its motion parameters,
- zone package in which the operator identifies zones that
are to be searched,
- carrier cycles, and
- projected intended movements (PIMs).
ASUWTDA Build 1 was developed with the close cooperation of
personnel from the following:
-
SPAWAR PMW-171
-
NISE East
-
Norfolk area commands such as -
-
CINCLANTFLT
-
SECOND FLEET
-
AIRLANT
-
TACTRAGRULANT
-
SWDG
-
George Washington, Enterprise, and Kennedy battlegroups; and
several east coast destroyer squadrons (DESRONs)
The extensive involvement of fleet personnel, beginning with
the design of the Graphical User Interface and databases, and
continuing through operational test of the system aboard the
USS Kennedy, USS John Rodgers, USS George Washington and other
ships, allowed us to develop a tactical decision aid for non-acoustic
search which could be used effectively by fleet operators to
evaluate and optimize non-acoustic search operations against
both surface ships and submarines. Both COMJFKBATGRU (COMDESRON
24) [1-2] and COMDESRON 14 [3-4] wrote and sent very favorable
lessons learned messages. Portions of these messages are contained
in Figures 2 and 3, and the entire DESRON 14 301322Z SEP 97 message
is contained in Appendix A.
As part of the ASUWTDA development process, and based on
our work with fleet users, we produced a Training Manual, a Functional
Description, a Standard Operating Procedures Manual, a User's
Guide, and an Installation Guide. The Training Manual uses a
programmed instruction format which covers all of the key operational
topics which might arise when running ASUWTDA. The goals of the
Training Manual, to provide an introduction to program use in
2 hours, and program familiarity after 6 additional hours, appear
to have been achieved. DESRONs 2 and 22 successfully used the
Training Manual as their primary ASUWTDA training tool. The battle
problems in the Training Manual: MODLOC (SUW and USW), Moving
PIM (SUW and USW), and Choke Point Transit (USW), cover all of
the mission planning scenarios which occurred during the USWPTs,
COMPTUEXs, and JTFEXs in which the Kennedy and George Washington
battlegroups participated, and we believe that they cover the
basics of any scenario which would arise during the deployment
of a battlegroup.
Example of ASUWTDA Operation
The following provides the situation, goal, and operator tasking
for a sample scenario:
- Situation -
- Libya threatens Egypt
- Enterprise battlegroup moves to support possible strike against
Libya
- Current Time: 010200Z MAY 96
- Goal -
- Protect battlegroup against attack by surface threats
- Maintain surveillance on Tripoli and Benghazi
- Contacts of Interest (COIs) are large patrol boats and ships
(90 feet+)
- Operator Tasking
- Classify all surface contacts in the areas of interest within
the last 3 hours
- Create optimal sortie plan for available S-3s P-3s, and LAMPS
to achieve SUW mission success.
The sortie screen shows a list of the aircraft available for
SUW search during the period of interest. The two E-2 sorties
have low-boys which will classify surface units in the E-2s'
area, but the SUWC cannot change their areas. The S-3, P-3, and
LAMPS sorties have been optimized to maximize the probability
of classifying targets the size of large patrol boats in the
areas of interest (within 50 NM of the battlegroup and near Tripoli
and Benghazi).
The next screen shows the details concerning the first S-3
sortie including its sensors and their effectiveness, the on-
and off-station times, track spacing, and probability of success
against a target of the specified size which was in the S-3's
search area during the entire time the S-3 was on station.
Next is a graphical representation of clearance effectiveness
at 1300 and of the areas of interest and the sortie search areas.
It also shows territorial stand-offs and threat bases.
Next is a timeline showing the probability over time of having
classified a large patrol boat in the areas of interest within
the last 3 hours.
Future
Plans
- Integrate ASUWTDA into the Multi-Warfare TDA being developed
under the direction of Dr. Asa Davis of NUWC.
- Fully implement directed search capability
- Enhance GCCS-M integration to allow communication between
ASUWTDAs on different ships, and access to GCCS-M PIMs, 4Ws,
and Overlays;
- Produce asset requirement recommendations to allow the fleet
operator to easily determine how many assets are necessary to
attain a certain mission goal;
- Add algorithms to support targeting, BDA and other mission
areas examined in Phase I [10].
- Incorporate the ability to assign different mission goals
(detection, classification, or identification) to scenario zones
of interest; to prioritize zones based on operator specified
criteria; and to incorporate no-fly areas based on surface-to-air
missile sites or other pertinent factors.
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