Method and system for correcting for curvature in determining the trajectory of a projectile
Given a trajectory and unit pointing vectors determined based on a planar or other approximation of a shock wave, a method and apparatus are provided to calculate times the sensors should have detected, based on a conical geometry of the shock wave. A difference between the calculated times and the...
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| creator | NIALL B. MCNELIS |
| description | Given a trajectory and unit pointing vectors determined based on a planar or other approximation of a shock wave, a method and apparatus are provided to calculate times the sensors should have detected, based on a conical geometry of the shock wave. A difference between the calculated times and the actual times measured by the sensors may be minimized. The minimization may be performed by perturbing the unit vectors. When the perturbation of the unit vectors results in an acceptable difference between the calculated times and the measured times, an accurate trajectory of the projectile can be generated from the perturbed unit pointing vectors. |
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When the perturbation of the unit vectors results in an acceptable difference between the calculated times and the measured times, an accurate trajectory of the projectile can be generated from the perturbed unit pointing vectors.</description><edition>7</edition><language>eng</language><subject>AMMUNITION ; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; BLASTING ; BULLET CATCHERS ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION ; HEATING ; LIGHTING ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; MECHANICAL ENGINEERING ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; TARGET RANGES ; TARGETS ; TESTING ; WEAPONS</subject><creationdate>2005</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20051208&DB=EPODOC&CC=AU&NR=2002309532B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20051208&DB=EPODOC&CC=AU&NR=2002309532B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NIALL B. 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MCNELIS</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NIALL B. MCNELIS</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method and system for correcting for curvature in determining the trajectory of a projectile</title><date>2005-12-08</date><risdate>2005</risdate><abstract>Given a trajectory and unit pointing vectors determined based on a planar or other approximation of a shock wave, a method and apparatus are provided to calculate times the sensors should have detected, based on a conical geometry of the shock wave. A difference between the calculated times and the actual times measured by the sensors may be minimized. The minimization may be performed by perturbing the unit vectors. When the perturbation of the unit vectors results in an acceptable difference between the calculated times and the measured times, an accurate trajectory of the projectile can be generated from the perturbed unit pointing vectors.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AMMUNITION ANALOGOUS ARRANGEMENTS USING OTHER WAVES BLASTING BULLET CATCHERS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION HEATING LIGHTING LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MECHANICAL ENGINEERING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TARGET RANGES TARGETS TESTING WEAPONS |
| title | Method and system for correcting for curvature in determining the trajectory of a projectile |
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