ITAR is pretty limited in what it considers intelligence/military. Unless you're looking for missile launches or doing remote sensing with technologies that are better than what's available to the general public, it probably won't apply. There's plenty of interesting things you can do without running afoul of ITAR/USML definitions.

Some telemetry and sensor data may be EAR99, which is as far as export restrictions go is about as nonrestrictive as it gets. For example iTunes is EAR99— that's why the EULA says you're not allowed to use it to develop nuclear or biological weapons.