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Aerospace blockset >> Blocks > FRAME_CONVERSION

FRAME_CONVERSION

This Xcos block converts position and velocity vectors from one reference frame to another

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Contents

Description

This Xcos block converts position and velocity vectors from one reference frame to another. Available reference frames are: ECI, ECF, ITRS, TIRS, PEF, Veis, CIRS, TOD, TEME, GCRS, MOD, EME2000 and EOD. Detailed description of those reference frames can be found in CL_fr_convert help chapter. Although the block allows to transform velocity as well as position velocity input can be ignored if unnecessary. Position input is mandatory, even when only velocity output is used. Third input with current simulation time in "modified julian day since 1950" needs to be always connected, because reference frame conversions rely on current time.

Data types

Dialog box

Input reference frame- reference frame of the input vetors

Output reference frame- reference frame of the output vetors

UTI-TREF- UTI-TREF [s] (1xN or 1x1)

TT-TREF- TT-TREF [s] (1xN or 1x1)

Position of the pole in ITRS- position of the pole [rad] (2xN or 2x1)

Correction to CIP coordinates- position of the pole [rad] (1x2)

Default properties

Input reference frame- "ECI"

Output reference frame- "ECF" "

UTI-TREF- 0

TT-TREF- 67.184

Position of the pole in ITRS- [0,0]

Correction to CIP coordinates- [0,0]

Interfacing function

Computational function

See Also

Author


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