The variable relationships between the electromagnetic scattering characteristics of serrated steps and the number,serrate angle or the pitch angle against incoming direction of wave were studied in a series of radar cross section(RCS) testing.

The electromagnetic computation data under different pitch angles,azimuth angles and polarizations are processed using SAR imaging algorithm,and the varying relations between the target scattering characteristics and the pitch angle,azimuth angle and polarization,as well as the relations with different polarization channels for target scattering peaks,are studied.

The paper analyzed the correlation of pitch angle and roll angle,which were measured by magnetic head flying angle adjustment apparatus,and introduced a method of angle adjusting.