Why do we need to estimate the true position in Kalman filters?
Posted
by
Kalla
on Stack Overflow
See other posts from Stack Overflow
or by Kalla
Published on 2011-01-16T17:43:26Z
Indexed on
2011/01/17
0:53 UTC
Read the original article
Hit count: 106
I am following a probably well-known tutorial about Kalman filter here
From these lines of code:
figure;
plot(t,pos, t,posmeas, t,poshat);
grid;
xlabel('Time (sec)');
ylabel('Position (feet)');
title('Figure 1 - Vehicle Position (True, Measured, and Estimated)')
I understand that x is the true position, y is measured position, xhat is estimated position. Then, if we can compute x (this code: x = a * x + b * u + ProcessNoise;), why do we need to estimated x anymore?
© Stack Overflow or respective owner
