System for measuring turbulence remotely

The mobile platform according to 1, wherein to obtain a signal representative of the turbulence, the receiver and at least one antenna are configured to:

• detect an alteration in a received signal;
• use the alteration to obtain an indication of the turbulence;
• and
• adjust the turbulence indication to account for motion of the platform.

An aircraft comprising a receiver configured with at least two antennas to:

• receive two or more signals from two or more signal sources remote from the aircraft along two or more paths;
• smooth one of the the received signals to obtain a positioning signal;
• use the unsmoothed received signals to obtain one or more signals representative of clear air turbulence;
• determine directions to the signal sources;
• use the directions to obtain time varying vectors representing air conditions along the signal paths;
• and
• use the time varying vectors to locate the turbulence.

An aircraft comprising a receiver configured with at least two antennas to:

• receive two or more signals from two or more satellites along two or more paths;
• smooth one of the the received signals to obtain information for an application on the aircraft;
• use the unsmoothed received signals to obtain one or more signals representative of clear air turbulence;
• determine directions to the satellites;
• use the directions to obtain time varying vectors representing air conditions along the signal paths;
• and
• use the time varying vectors to locate the turbulence.