Absolute speed detector

A computer aided method of a system for determining absolute speed of a moving object, the method comprising:

• processing a plurality of time of flight data over a measurement time interval;
• determining a plurality of ranges between a location associated with the system and a location associated with the moving object for each time of flight data;
• determining a linear regression curve-fit on the plurality of time of flight data for the plurality of ranges between the location associated with the system and the location associated with the moving object over the measurement time interval to compensate for a cosine of an angle between a direction of the moving object and the system;
• determining absolute speed;
• communicating the absolute speed;
• determining a radial velocity associated with the plurality of time of flight data over the measurement time interval from the slope of the linear regression curve-fit;
• determining a tangential velocity for each time of flight data over the measurement time interval;
• and
• synchronize radial and tangential velocity measurements and adjust the absolute speed downward by a programmable factor to improve accuracy in angular rate measurement and time synchronization.

A non-transitory computer readable medium containing computer readable instructions for instructing a computing machine to determine absolute speed of a moving object, the computer-readable instructions comprising instructions for causing the computing machine to:

• process a plurality of time of flight data over a measurement time interval;
• determine a plurality of ranges between a location associated with the system and a location associated with the moving object for each time of flight data;
• determine a linear regression curve-fit on the plurality of time of flight data for the plurality of ranges between the location associated with the system and the location associated with the moving object over the measurement time interval to compensate for a cosine of an angle between a direction of the moving object and the system;
• determine absolute speed;
• communicate the absolute speed by generating a display;
• determine a radial velocity associated with the plurality of the time of flight data over the measurement time interval from the slope of the linear regression curve-fit;
• determine a tangential velocity associated with the plurality of the time of flight data over the measurement time interval;
• and
• synchronize radial and tangential velocity measurements and adjust the absolute speed downward by a programmable factor to improve accuracy in angular rate measurement and time synchronization.