Proceedings with Extended Abstracts (single PDF file) - Radio ...

Figure 2: Comparison of experimental SD (+ symbols) with theoretical SD (dotted, anddashed lines) for experiment with MU radar (Feb. 15, 2000). Experimental mean values(over 1 hour) shown with solid lines: ρ x ′, ρ y ′ are major and minor correlation ellipse axes,θ x ′, θ y ′ are the equivalent angular aspect sensitivities.Application to SA Configuration DesignDependence of SD [ρ] on baseline length to ξ ratio is shown for an isotropic case inFigure 3(a), and dependence on correlation-ellipse axis bearing relative to baseline orientationsin Figure 3(b). Dependencies on τ c , T and a h are not shown due to spacelimitations. From expected theoretical SD of correlation-ellipse parameters, SA configurationscan be designed within the limits of the radar’s capabilities to reduce the SD.This improves not only the estimation of correlation ellipse parameters, but also windestimates, since correlation lengths affect the correlation coefficient at the correlation-lagrelating auto- and cross-correlation functions (τ x for Briggs FCA, τ i for the method inHolloway et al. [1997b]).Conclusions158We used the standard theory of error propagation to derive operational expressions for SDof refractive index perturbation correlation ellipse parameters, using the cross correlationmethod from Holloway et al. [1997a] that yielded results compatible with experimental