Determining Thrust or Drag of a Rocket-Assisted Projectile from Doppler Trajectory Data
An analysis and associated computational technique were developed to measure rocket thrust using Doppler radar velocity trajectory data from rocket- assisted projectile firings. This technique was inserted into the ARDC standard six-degree-of-freedom flight simulation program, TRAJ5. During data red...
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| creator | Friedman, Eugene M Amoruso, Michael J |
| description | An analysis and associated computational technique were developed to measure rocket thrust using Doppler radar velocity trajectory data from rocket- assisted projectile firings. This technique was inserted into the ARDC standard six-degree-of-freedom flight simulation program, TRAJ5. During data reduction, the actual Doppler velocity from radar data is compared to the value predicted by the simulation. If they disagree, the thrust is adjusted until agreement occurs. The technique automatically determines rocket motor ignition and burnout times. The estimate of the specific impulse is also corrected. This method can also be used to estimate corrections to the drag coefficient of a projectile. |
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This technique was inserted into the ARDC standard six-degree-of-freedom flight simulation program, TRAJ5. During data reduction, the actual Doppler velocity from radar data is compared to the value predicted by the simulation. If they disagree, the thrust is adjusted until agreement occurs. The technique automatically determines rocket motor ignition and burnout times. The estimate of the specific impulse is also corrected. This method can also be used to estimate corrections to the drag coefficient of a projectile.</description><language>eng</language><subject>Active & Passive Radar Detection & Equipment ; ALGORITHMS ; Ammunition and Explosives ; Armor ; COMPUTER PROGRAMMING ; COMPUTER PROGRAMS ; COMPUTERIZED SIMULATION ; CONTRAJ COMPUTER PROGRAM ; DATA REDUCTION ; DOPPLER RADAR ; DRAG ; EXTENDED RANGE PROJECTILES ; FLIGHT SIMULATION ; FREE FLIGHT TRAJECTORIES ; FY86 ; RADAR TRACKING ; ROCKET ASSISTED PROJECTILES ; ROCKET ENGINES ; SIX DEGREE OF FREEDOM ; SPECIFIC IMPULSE ; TEST METHODS ; THRAD COMPUTER PROGRAM ; THRUST ; TRAJ5 COMPUTER PROGRAM ; VECTOR ANALYSIS</subject><creationdate>1985</creationdate><rights>Approved for public release; distribution is unlimited.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,776,881,27544,27545</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/ADA162854$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Friedman, Eugene M</creatorcontrib><creatorcontrib>Amoruso, Michael J</creatorcontrib><creatorcontrib>ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ ARMAMENT ENGINEERING DIRECTORATE</creatorcontrib><title>Determining Thrust or Drag of a Rocket-Assisted Projectile from Doppler Trajectory Data</title><description>An analysis and associated computational technique were developed to measure rocket thrust using Doppler radar velocity trajectory data from rocket- assisted projectile firings. This technique was inserted into the ARDC standard six-degree-of-freedom flight simulation program, TRAJ5. During data reduction, the actual Doppler velocity from radar data is compared to the value predicted by the simulation. If they disagree, the thrust is adjusted until agreement occurs. The technique automatically determines rocket motor ignition and burnout times. The estimate of the specific impulse is also corrected. This method can also be used to estimate corrections to the drag coefficient of a projectile.</description><subject>Active & Passive Radar Detection & Equipment</subject><subject>ALGORITHMS</subject><subject>Ammunition and Explosives</subject><subject>Armor</subject><subject>COMPUTER PROGRAMMING</subject><subject>COMPUTER PROGRAMS</subject><subject>COMPUTERIZED SIMULATION</subject><subject>CONTRAJ COMPUTER PROGRAM</subject><subject>DATA REDUCTION</subject><subject>DOPPLER RADAR</subject><subject>DRAG</subject><subject>EXTENDED RANGE PROJECTILES</subject><subject>FLIGHT SIMULATION</subject><subject>FREE FLIGHT TRAJECTORIES</subject><subject>FY86</subject><subject>RADAR TRACKING</subject><subject>ROCKET ASSISTED PROJECTILES</subject><subject>ROCKET ENGINES</subject><subject>SIX DEGREE OF FREEDOM</subject><subject>SPECIFIC IMPULSE</subject><subject>TEST METHODS</subject><subject>THRAD COMPUTER PROGRAM</subject><subject>THRUST</subject><subject>TRAJ5 COMPUTER PROGRAM</subject><subject>VECTOR ANALYSIS</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1985</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNqFyb8KwjAQgPEuDqK-gcO9QAf_0jUYxVEk4FhCeqmnaa5czsG3F8Hd6YPfN61uFhVloEy5B3eXV1FgASu-B47g4crhiVqbUqgodnARfmBQSghReADL45hQwIn_OssbrFc_rybRp4KLX2fV8nR0h3PdKYW2KGXU1liz2q-b3XbzZ38AzNQ2dA</recordid><startdate>198511</startdate><enddate>198511</enddate><creator>Friedman, Eugene M</creator><creator>Amoruso, Michael J</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>198511</creationdate><title>Determining Thrust or Drag of a Rocket-Assisted Projectile from Doppler Trajectory Data</title><author>Friedman, Eugene M ; Amoruso, Michael J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_ADA1628543</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>1985</creationdate><topic>Active & Passive Radar Detection & Equipment</topic><topic>ALGORITHMS</topic><topic>Ammunition and Explosives</topic><topic>Armor</topic><topic>COMPUTER PROGRAMMING</topic><topic>COMPUTER PROGRAMS</topic><topic>COMPUTERIZED SIMULATION</topic><topic>CONTRAJ COMPUTER PROGRAM</topic><topic>DATA REDUCTION</topic><topic>DOPPLER RADAR</topic><topic>DRAG</topic><topic>EXTENDED RANGE PROJECTILES</topic><topic>FLIGHT SIMULATION</topic><topic>FREE FLIGHT TRAJECTORIES</topic><topic>FY86</topic><topic>RADAR TRACKING</topic><topic>ROCKET ASSISTED PROJECTILES</topic><topic>ROCKET ENGINES</topic><topic>SIX DEGREE OF FREEDOM</topic><topic>SPECIFIC IMPULSE</topic><topic>TEST METHODS</topic><topic>THRAD COMPUTER PROGRAM</topic><topic>THRUST</topic><topic>TRAJ5 COMPUTER PROGRAM</topic><topic>VECTOR ANALYSIS</topic><toplevel>online_resources</toplevel><creatorcontrib>Friedman, Eugene M</creatorcontrib><creatorcontrib>Amoruso, Michael J</creatorcontrib><creatorcontrib>ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ ARMAMENT ENGINEERING DIRECTORATE</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Friedman, Eugene M</au><au>Amoruso, Michael J</au><aucorp>ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ ARMAMENT ENGINEERING DIRECTORATE</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Determining Thrust or Drag of a Rocket-Assisted Projectile from Doppler Trajectory Data</btitle><date>1985-11</date><risdate>1985</risdate><abstract>An analysis and associated computational technique were developed to measure rocket thrust using Doppler radar velocity trajectory data from rocket- assisted projectile firings. This technique was inserted into the ARDC standard six-degree-of-freedom flight simulation program, TRAJ5. During data reduction, the actual Doppler velocity from radar data is compared to the value predicted by the simulation. If they disagree, the thrust is adjusted until agreement occurs. The technique automatically determines rocket motor ignition and burnout times. The estimate of the specific impulse is also corrected. This method can also be used to estimate corrections to the drag coefficient of a projectile.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | Active & Passive Radar Detection & Equipment ALGORITHMS Ammunition and Explosives Armor COMPUTER PROGRAMMING COMPUTER PROGRAMS COMPUTERIZED SIMULATION CONTRAJ COMPUTER PROGRAM DATA REDUCTION DOPPLER RADAR DRAG EXTENDED RANGE PROJECTILES FLIGHT SIMULATION FREE FLIGHT TRAJECTORIES FY86 RADAR TRACKING ROCKET ASSISTED PROJECTILES ROCKET ENGINES SIX DEGREE OF FREEDOM SPECIFIC IMPULSE TEST METHODS THRAD COMPUTER PROGRAM THRUST TRAJ5 COMPUTER PROGRAM VECTOR ANALYSIS |
| title | Determining Thrust or Drag of a Rocket-Assisted Projectile from Doppler Trajectory Data |
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