Method for determining watercraft bearing and speed from wave wake observation

An apparatus comprising:

• a memory having computer readable instructions and one or more processors for executing the computer readable instructions, the computer readable instructions controlling the one or more processors to perform operations comprising:
• processing a disturbance record comprising a record of wake disturbances at a reference boundary according to time and position;
• and
• calculating bearing and speed information associated with an object and a body of water based on processing the disturbance record,
• wherein the bearing and speed information comprises:
• a speed at which the object crossed a point along the reference boundary;
• and
• a direction in which the object is traveling.

A method comprising:

• processing a disturbance record comprising a record of wake disturbances at a reference boundary according to time and position;
• and
• calculating bearing and speed information associated with an object and a body of water based on processing the disturbance record,
• wherein the bearing and speed information comprises:
• a speed at which the object crossed a point along the reference boundary;
• and
• a direction in which the object is traveling.