# ordertrack

Track and extract order magnitudes from vibration signal

## Syntax

## Description

returns
a matrix, `mag`

= ordertrack(`x`

,`fs`

,`rpm`

,`orderlist`

)`mag`

, that contains time-dependent root-mean-square
(RMS) amplitude estimates of a specified set of orders, `orderlist`

,
present in input signal `x`

. `x`

is
measured at a set `rpm`

of rotational speeds expressed
in revolutions per minute. `fs`

is the measurement
sample rate in Hz.

`[___] = ordertrack(___,`

specifies further options using `Name,Value`

)`Name,Value`

pairs. Some of
the options apply only to the Vold-Kalman tracking procedure.

`ordertrack(___)`

with no output
arguments plots in the current figure the time-dependent orders and
RPM values.

## Examples

## Input Arguments

## Output Arguments

## References

[1] Brandt, Anders. *Noise and Vibration Analysis:
Signal Analysis and Experimental Procedures*. Chichester,
UK: John Wiley & Sons, 2011.

[2] Feldbauer, Christian, and Robert Höldrich. "Realization of a Vold-Kalman Tracking
Filter — A Least Squares Problem." *Proceedings of the COST G-6
Conference on Digital Audio Effects (DAFX-00)*. Verona, Italy, December
7–9, 2000.

[3] Vold, Håvard, and Jan Leuridan. "High Resolution Order Tracking at Extreme Slew Rates
Using Kalman Tracking Filters." *Shock and Vibration*. Vol. 2,
1995, pp. 507–515.

[4] Tůma, Jiří. “Algorithms for
the Vold-Kalman Multiorder Tracking Filter.” *Proceedings of the 14th
International Carpathian Control Conference (ICCC)*, 2013, pp. 388–94.
https://doi.org/10.1109/CarpathianCC.2013.6560575.

## Extended Capabilities

## See Also

`orderspectrum`

| `orderwaveform`

| `rpmfreqmap`

| `rpmordermap`

| `tachorpm`

**Introduced in R2016b**