Cramér-Rao Bound Study of Multiple Scattering Effects in Target Separation Estimation

Figure 4

Plots of CRB(𝑑) as a function of incidence angle 𝛼 and scatterer separation 𝑑, normalized by 𝜎², for the case where 𝑑_𝑐 is known. The observation angle 𝛽=𝜋−𝛼 and 𝜏₁=1=𝜏₂.

(a) Multiple Scattering Model

(b) Born Approximation Model