VBOX 3iSL User's Guide download pdf (Page 31)

VBOX 3iSL User Guide

Page 31 of 53

11/04/2012

Dynamic Modes

The VBOX3iSL has three Dynamic modes. These Dynamic modes directly change the SMI smoothing index applied by the GPS engine to all Doppler-derived data,

notably speed and heading. The lower smoothing levels have a higher dynamic response but are adversely noisier.

The three options are:

High Dynamics: ical and the

vehicle test incorporates highly dynamic manoeuvres.

Normal: 

Low Dynamics: can be used for smoother velocity and heading data and less acceleration noise only in lower dynamic tests.

Slip Angle Noise

In the same way that the Velocity is a little noisy in High Dynamics mode, the Slip Angle can also noisy, (being derived from GPS heading). You can reduce this

noise by using Normal or Low dynamic mode providing. Bearing in mind that if your test is of a High Dynamic nature and that time and distance measurement is

critical then you should use High Dynamics mode.

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VBOX 3iSL User's Guide Page 31

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