A space-fed conformal array for a high altitude airship includes a primary array lens assembly adapted for conformal mounting to a non-planar airship surface. A table 48 opposed to the port is disposed outside the system. Also provided by the invention are tissue cultures of the soybean variety XB56V13 and the plants regenerated therefrom. This enables the use of interference cancelling methods in communications systems using un-synchronised base stations. A vehicle can implement such an estimation.