. Because there is no regular control point on the surface of Mars, the sun sensor is usually calibrated in the laboratory before launch.
So we ignore the influence of angular velocity of the Earth and the platform on the attitude error; the attitude error equation
is further simplified :
For fully considering the reliability of the mean seismic risk model, the error equation
is provided and analyzed.
Subtracting equation (35) from equation (34), with the fluxes on boundaries, we obtain the error equation
The traditional method is to construct an auxiliary system (called error system) by combining the error equation
and the difference equation.
In Section 2, we introduce the derivative-free parametric family and its error equation
. Section 3 addresses the increase of the order of convergence with the introduction of the memory in the iterative schemes.
Combining the error equation
of observation and the equation of constraint condition, the error equation
with constraint condition is expressed in Eq.
This method has biquadratic convergence and satisfies the following error equation
The modeling of INS/UWB integrated system includes system error equation
, filtering model, optimal comprehensive strategy, and system experiment.
By invocation of (2), (6), and (8), we get the error equation
Subtracting (57) from (32), we obtain the error equation
So we can easily obtain the following roundoff error equation