DEPARTMENT OF THE ARMYPROGRAM EXECUTIVE OFFICE

ARMORED SYSTEMS MODERNIZATIONWARREN, MICHIGAN 48397-5000

° PLYTO .

ATNNCAD-A252 338lFEAS-SI ; 2 Jun 92

Suviailt Sys1e1s Nd jj111111 Autootiv Command11MEMORANDUM FOR Sh UiTiKu-u

SUBJECT: Groundwars Analysis of the Laser Warning Receiver(LWR) - Phase II.

1. PM Survivability Systems and the Tank Automotive Command

(TACOM) have formed the Combat Vehicle Survivability AssessmentCell (CVSAC), a computer modeling cell to perform in-houseanalyses of survivability technologies.

2. Enclosed is the report of Phase II of the Laser WarningReceiver Groundwars analysis. This is the second of four phasesof an ongoing study. In Phase I, the CVSAC showed the benefitsof an LWR capable of locating a threat laser source to the degreeneeded to cue a main gun engagement. Phase II examined an LWRlinked with the tactics of popping smoke, seekina cover inattack, and moving to an alternate fire position in defense.

3. For further information, please contact Mr. Dennis Bjorakeror Ms. Lisa Jokubaitis, DSN 786-7759. DTIC

V~r~d~o~ri.. I-IZi~ ELECTEWIL AJ. MILLER JUt4 2t 1992

Project Manager ASurvivability Systems

DISTRIBUTION:

HQDA (SAUS-OR/W. Hollis)WASH DC 20310-0601

HQDA (SARD-DO/Mr. Kramar)WASH DC 20310

-A HQDA (DAMO-FDZ/COL (P) Kern)77 WASH DC 20310-0460

PROGRAM EXECUTIVE OFFICE:Armored Systems Modernization, ATTN: SFAE-ASM/SFAE-ASM-F/SFAE-

ASM-FD/SFAE-ASM-L/SFAE-ASM-P/SFAE-ASM-S, Warren, MI 48397-5000

PROJECT MANAGER:Block III Tank/Common Chassis, ATTN: SFAE-ASM-BT, Warren, MI

48397-5000

SFAE-ASM-SSSUBJECT: Groundwars Analyses of the Laser Warning Receiver

(LWR) - Phase II.

Advanced Field Artillery Systems, ATTN: SFAE-ASM-.AF, PicatinnyArsenal, NJ 07801

Future Armored Resupply Vehicle-Ammunition, ATTN: SFAE-ASM-FR,Picatinny Arsenal, NJ 07801

Line-of-Sight Anti-Tank, ATTN: SFAE-ASM-LS, Redstone Arsenal, AL35898-8051

Combat Mobility Vehicle, ATTN: SFAE-ASM-CV, Warren, MI 48397-5000Future Infantry Fighting Vehicle, ATTN: SFAE-ASM-FV, Warren, MI

48397-5000Abrams Tank System, ATTN: SFAE-ASM-AB, Warren, MI 48397-5000Bradley Fighting Vehicle System, ATTN: SFAE-ASM-BV, Warren, MI

48397-5000Armored Gun System, ATTN: SFAE-ASM-AG, Warren, MI 48397-5000

COMMANDANT:U.S. Army Infantry School, ATTN: ATSH-CMD-E, Fort Benning, GA

31905U.S. Army Armor School, ATTN: ATSB-CD/ATSB--TSMT/ATZK-TF, Fort

Knox, KY 40121-5212

COMMANDER:AMC Smart Munitions Program Office, ATTN; AMSMI-RD-SM, Redstone

Arsenal, AL 35898-5246U.S. Army Survivability Management office, ATTN: SLCSM-SE, 2800

Powder Mill Road, Adelphi, MD 20783-1145U.S. Army Missile Command, ATTN: AMSMI-OR-SA, Redstone Arsenal,

AL 35898-5060U.S. Army Communication-Electronics Center for EW/RSTA, ATTN:

AMSEL-RD-EW-S, Ft. Monmouth, NJ 07703U.S. Army Tank-Automotive Command, ATTN: AMSTA-RS/AMSTA-ZEA,

Warren, MI 48397-5000U.S. Army Laboratory Command, ATTN: AMSLC-TD, 2800 Powder MillRoad, Adelphi, MD 20783-1145

Defense Technical Information Center, ATTN: DTIC-FDAC, CameronStation, Bldg 5, Alexandria, VA 22304-6145

U.S. Army Materiel Command, 5001 Eisenhower Avenue, ATTN: AMCAEAlexandria, VA 22333-0001

DIRECTOR:U.S. Army Armament Research Development & Engineering Center,

ATTN: SMCAR-FSS-E/SMCAR-FSF-B/SMCAR-CCH, Picatinny Arsenal, NJ07806-5000

U.S. Army Vulnerability Assessment Office, ATTN: SLCVA, WhiteSands Missile Range, NM 88002-5512

Ballistic Research Laboratory, ATTN: SLCBR-SE/SLCBR-VL-D/SLCBR-IB-P/SLCBR-LF-F/SLCBR-TB, Aberdeen Proving Ground, MD 21005

U.S. Army Materiel Systems Analysis Activity, ATTN: AMXSY-GC,Aberdeen Proving Ground, MD 21005-5071

U.S. Army TRADOC Analysis Command, ATTN: ATRC-WA, White Sands

SFAE-ASM-SSSUBJECT: Groundwars Analysis of the Laser

Warning Receiver

(LWR) - Phase II.

Missile Range, NM 88002-5502Defense Advanced Research Planning Agency,

ATTN: TTO, 1400 Wilson

Blvd, Arlington, VA 22209-2308Precision Guided Weapons Countermeasures

Test and Evaluation

Directorate, ATTN: OTD, White Sands Missile Range, NM 80002-

5519U.S. Army Combined Arms Command and Fort

Leavenworth, ATTN: ATZL-

CDE-C, Fort Leavenworth, KS 66027-5000

Dii,'; ',:.O 'r'. J "

i , ' L:, .....................................................................- i

A1

Statement A per telecomDennis B3joraker ProgramExecutive Office, Anflored Systemsodernization ATTN: AFAE-ASM-SS-p

I'arrenl, J-11 43397-5000 NIVW 6/19/9z

LASER WARNING RECEIVER (LWR)EFFECTIVENFSS ANALYSIS (PHASE II)

EXECUTIVE SUMMARY

1. BACKGROUND. The Combat Vehinle Survivability Assessment Cell(CVSAC) is conducting an on-going study to identify the potentialsurvivability impact of installing an IWR on an armored vehicle.The CVSAC used Groundwars, a force-on-force stochastic computermodel developed and maintained by AMSAA. In Phase I, the CVSACshowed the benefits in a one-on-one scenario of an LWR capable oflocating a threat laser source to the degree needed to cue a maingun engagement. In this phase, Phase II, the CVSAC analyzed thebenefits of an LWR linked w.ith the tactics of popping smoke (inattack and defense), seeking cover (in attack), and moving to analternate fire position (in defense) upon activation of the LWR.AMSAA has reviewed and concurred with CVSAC's methodology andanalysis results.

2. ASSUMPTIONS/SET-UP. This analysis considered an m-on-nscenario in which Red and Blue tanks attacked and defended.During the attack, the tanks (Red or Blue) were fully exposed;during the defense, the tanks were in hull-defilade. There were2000 repetitions of each scenario made for this analysis. Theeffectiveness of the Blue tank when equipped with an LWR wascompared to a basecase in which Blue had no LWR, did not popsmoke, did not seek cover, and did not move to an alternate fireposition.

3. RESULTS. Laser Warning Receivers provide early warning ofimpending threat engagements. An LWR capable of warning the tankcommander to pop smoke or take evasive maneuvers benefits theBlue tank during both the attack and the defense. The LWR's had agreater impact on Blue tank survivability in the defense than inthe attack. The LWR linked with popping smoke showed morebenefit than when linked with seeking cover or moving to analternate fire position. This analysis suggests that an LWR'sability to warn of an impending engagement and take measures tobreak line-of-sight will provide a significant improvement to atank's survivability.

4. THE WAY AHEAD. Follow-on analyses will:

a. In an m-on-n scenario, examine the effectiveness of anLWR capable of locating a threat laser source to the degreeneeded to cue a main gun engagement. The analysis will examinethe tactics of returning fire, popping smoke, seeking cover, andmoving to an alternate fire position.

b. Examine the sensitivity of the LWR's benefits as afunction of direction of arrival accuracy.

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