Wave scattering from a conducting cylinder in a continuous random medium-angular correlation and backscattering cross-section

Let us consider the case that an electromagnetic wave radiated from a line source propagates almost in the forward direction in a random medium like turbulence and illuminates a conducting cylinder surrounded by the random medium. We also consider the case that the incident wave becomes incoherent enough about the cylinder although it keeps a finite spatial-correlation length (SCL). In this situation, an analysis of wave scattering from the cylinder is an interesting subject in remote sensing and radar engineering. If the size of the cylinder cross-section (CCS) is much smaller than the SCL, the backscattering cross-section of the cylinder (BCS) is twice as large as that in free space because of backscattering enhancement. When the SCL decreases, the BCS changes largely with the curvature of the illuminated cylinder and the polarization of the incident wave. In order to make sure of the effects of the curvature on BCS, we assume a cylinder with a convex-concave surface and calculate the BCS of the cylinder by changing the size of CCS. On the other hand, the angular correlation function of scattered waves by rough surfaces and random media is useful for the detection of a buried object. In the same situation described above, we analyze numerically the angular correlation of scattered waves and show a relation between the correlation function and the scale size of the random medium by changing the size of CCS and the polarization of the incident wave