[InitialLastName]

You need to dither that by a half-mile as well so that the baddies can't use the border between e.g. 2 and 3 miles to do the same test.

[nomel]

This is a trick I use when doing competitive analysis for a certain type of sensor. I need to measure the amount of noise in the system, but a dead-band or quantization is almost always included. So, I insert a signal that bumps up against the boundaries of the dead-band or quantization. Doing this repeatedly gives me a sampling of the noise.