gserr.hlp

MATLAB在飞行动力学和控制中应用的工具

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The masked subsystem block GLIDESLOPE STEADY-STATE ERROR, which
is contained in the library NAVLIB, sublibrary ILS, can be used
to simulate a steady-state error in the glideslope signals,
caused by the ground equipment. The magnitude of the error is
computed according to ICAO guidelines. Both glideslope misalign-
ment and steady-state errors in the glideslope sensitivity can be
taken into account. See refs.[1] or [2], or FDC 1.2 manual, for
more info about the theoretical backgrounds.

Inputsignal:
============
  nominal value of glideslope current igs, [鍭]

Outputsignal:
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  glideslope current igs, including steady-state errors, [鍭]

Block-parameters:
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* performance category (1, 2, or 3, see ref.[2] or FDC 1.2
  manual for more info)
* percentage of maximum allowable error in glideslope sensitivity
  (igs = Sgs * epsilon_gs, where igs is glideslope current
  through cockpit instrument, epsilon_gs is the angle between the
  line from aircraft's c.g. to glideslope antenna and nominal
  glide path, Sgs is the glideslope sensitivity)
* percentage of maximum allowable glideslope misalignment
* nominal glideslope elevation angle

The block-parameters can be specified in dialog-boxes which
appear after double-clicking the block GSerr.

References:
===========
[1] Approach and Landing Simulation. AGARD report 632, Ames, 1975

[2] A Simulink environment for Flight Dynamics and Control
    analysis - Application to the DHC-2 'Beaver', part I: Im-
    plementation of a model library in Simulink. Delft Univer-
    sity of Technology, September 1993

More info:
==========
See ILS.HLP for details about the nominal ILS signals. See also
LOCERR.HLP for more info about steady-state errors in the loca-
lizer signal.

See also the subsystem 'ILS example' and its help-text
ILSXMPL.HLP, to find out how the noise-blocks can be connected
to the masked subsystem block ILS.

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The FDC toolbox, Copyright Marc Rauw 1994-1998.