3 m trihedral reflectors, are disposed in region A along the flight direction.
Calibration of polarimetric radar images using only image parameters and trihedral corner reflector responses," IEEE Transactions on Geoscience and Remote Sensing, Vol.
Before we give the definition of AR, a coordinate system for trihedral is established as is shown in Fig.
As a result, AR is the function of the pose angle of trihedral OP, and the incident angle [[theta].
T]) in the echo-domain according to Equation (2) when a trihedral is in different pose angles.
To estimate the pose angle of a trihedral when radar operates in MIMO array measurement configuration, we make use of parametric models of canonical shapes for bistatic radar.
According to the literature, the square trihedral peak scattering occurs at [[beta].
where the length of the trihedral along each edge is assumed to be equal to H and A = 2[square root of 3][H.
The definition of AR provides us a direct way to estimate the pose angle of a trihedral in the echo-domain.
We will develop an image-domain based method to estimate the pose angle of trihedral by using a virtual aperture method.
The pose angles of the left wall-wall-floor trihedral [[theta].
Figure 9 clearly shows the left trihedral, right trihedral and back wall plate.