With the increase of k, the missile boresight error becomes smaller as can be seen in Figure 17, which reduces the requirement of missile attitude control acceleration in actual engagements .
In a dynamical process, oscillation causes the constantly changing of the missile boresight error [epsilon], as the black lines shown in Figure 17.
Thus, radomes can negatively affect the antenna performance by distorting the amplitude and phase in the main beam, bringing more sidelobes, boresight errors
, and a decreased bandwidth .
The EM performance parameters (Co-pol power transmission, X-pol transmission, boresight error (BSE) etc.) of antenna-radome system are computed for antenna scan angles corresponding to window regions [R.sub.1], [R.sub.2], and [R.sub.3] based on 3D Ray-tracing procedure in conjunction with Aperture Integration method.
The azimuth boresight error of Inhomogeneous Dielectric Radome is higher than that of Monolithic Radome in the antenna scan range 0[degrees]- 15[degrees].
In the terminal guidance process, the boresight error
[[psi].sub.c] approximately equals to tracking error, generally in the mil order.
are S-shaped curves about the axis through the nose of a tangent ogive radome, as used on missiles.