[bluman]

Camouflage netting is perhaps the only surefire way to do this, although I'm sure that will attract far more attention than doing nothing at all. Something that would work kind of OK would be to create a large radiometric difference in your property like having a dark black roof and making your lawn as reflective as possible (white cement or gravel, swimming pool). That way when the imagery is processed in an automated fashion it will render your area badly. It still would be possible to go back to the original images and enhance the area manually but can be quite a chore.