# trajectory

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## tra·jec·to·ry

(trə-jĕk′tə-rē)
n. pl. tra·jec·to·ries
1.
a. The path of a projectile or other moving body through space.
b. A chosen or taken course: "What died with [the assassinated leaders] was a moral trajectory, a style of aspiration" (Lance Morrow).
2. Mathematics A curve that cuts all of a given family of curves or surfaces at the same angle.

[New Latin trāiectōria, from Latin trāiectus, past participle of trāicere, to throw across; see traject.]

## trajectory

(trəˈdʒɛktərɪ; -trɪ)
n, pl -ries
1. (Aeronautics) the path described by an object moving in air or space under the influence of such forces as thrust, wind resistance, and gravity, esp the curved path of a projectile
2. (Mathematics) geometry a curve that cuts a family of curves or surfaces at a constant angle
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## tra•jec•to•ry

(trəˈdʒɛk tə ri)

n., pl. -ries.
1. the curve described by a projectile, rocket, or the like in its flight.
2. any path or course.
3. a geometric curve or surface that cuts all the curves or surfaces of a given system at a constant angle.
[1660–70; < New Latin trājectōria, n. use of feminine of Medieval Latin trājectōrius casting over. See traject, -tory1]

## tra·jec·to·ry

(trə-jĕk′tə-rē)
1. Physics The curve described by a projectile moving through space.
2. Geometry A curve or surface that passes through a given set of points or intersects a given series of curves or surfaces at a constant angle.

## trajectory

Dictionary of Military and Associated Terms. US Department of Defense 2005.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 trajectory - the path followed by an object moving through spaceflightmechanical phenomenon - a physical phenomenon associated with the equilibrium or motion of objectsballistic trajectory, ballistics - the trajectory of an object in free flightgravity-assist - (spaceflight) a trajectory that passes close to a planetary body in order to gain energy from its gravitational field
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

## trajectory

noun the trajectory of an artillery shell
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
Translations
dráhatrajektorie
Trajektorie
trajetória

## trajectory

[trəˈdʒektərɪ] N
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

## trajectory

[trəˈdʒɛktəri] n
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

## trajectory

nFlugbahn f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

## trajectory

[trəˈdʒɛktrɪ] ntraiettoria
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in classic literature ?
The rifle, like all expresses, was only sighted to three hundred and fifty yards, so to allow for the drop in trajectory I took him half-way down the neck, which ought, I calculated, to find him in the chest.
The researchers used group-based trajectory modelling to identify patient subgroups with similar change patterns in their quality of life.
The upward trajectory of dollar came after the rupee continued to depreciate against it following an agreement with the International Monetary Fund on a \$6 billion loan with expected strict conditions including a 'market-determined' exchange rate.
For women with BP categorized as normal, the risk for any hypertensive disorder of pregnancy was increased with an upward systolic trajectory versus a downward systolic trajectory (aRR, 1.41).
PASSUR's trajectory solutions are now deployed in the US, Canada, Mexico, and Western Europe.
Therefore, by analyzing the trajectory data, we can find out the life patterns or behavior patterns of moving objects and the correlation between them.
For the characteristics of BP data, the trajectory model was completed by the CNORM (the censored normal model) mode of the SAS 9.3 (SAS Institute Inc., Cary, NC, USA)[14],[15],[16] which can set the minimum and maximum values to eliminate possible bias.
Keywords: trajectory data, polygon, centroid, Laplace's differential privacy
At each point a next point exists, such that a free trajectory connecting these two points has no other contacts with this general trajectory.
From Hidden Markov Models [5] and 'elbow' reductions [6] to kernel-based representations [7], there are various ways of handling trajectory analysis tasks but none of these are covariance-based except [8], where covariance matrices are instrumented to develop DTW rather than extracting explicit vector set descriptions.
In the case when the MR moves in a partially unknown or dynamic environment the trajectory should be planned dynamically based on information coming from the onboard MR sensors and predefined movement patterns [11, 12].

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