The Fisher Information Matrix as a Relevant Tool for Sensor Selection in Engine Health Monitoring

<table>Comparison of
the observability indices <svg height="11.7375" id="M471" style="vertical-align:-0.15015pt" version="1.1" viewbox="0 0 17.975 11.7375" width="17.975" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.487)"><path d="M466 330q0 -68 -2 -134q-5 -110 -31 -154q-10 -19 -37 -33q-23 -13 -50.5 -16.5t-84.5 -3.5q-51 0 -81 3q-64 7 -92 50q-11 21 -20 62q-9 51 -10 92q-2 66 -2 134t2 134q5 113 30 154q13 21 37 34t51.5 16.5t84.5 3.5q51 0 80 -3q67 -7 92 -51q13 -21 20 -62
q10 -47 11 -92q2 -66 2 -134zM408 344q0 44 -2 90q-2 92 -14 115q-12 36 -41 47.5t-90 11.5q-38 -1 -52 -2.5t-32 -7.5t-30 -19q-23 -32 -27 -78q-5 -72 -5 -157q0 -75 1 -100q6 -105 14 -126q14 -40 42.5 -53t88.5 -12q29 0 57 2q47 7 67 44q8 19 14 52q9 55 9 193z" id="x1D67E"></path></g><g transform="matrix(.017,-0,0,-.017,8.987,11.487)"><path d="M438 40v-16q0 -10 -7 -17t-17 -7h-306q-10 0 -17 7t-7 17v16q0 10 7 17t17 7h123l1 534h-124q-10 0 -17 7t-7 17v16q0 10 7 17t17 7h306q10 0 17 -7t7 -17v-16q0 -10 -7 -17t-17 -7h-123l-1 -534h124q10 0 17 -7t7 -17z" id="x1D678"></path></g>
</svg>.</table>

International Journal of Rotating Machinery

fig3

Figure 3

Figure 3: The Fisher Information Matrix as a Relevant Tool for Sensor Selection in Engine Health Monitoring 