Methods and apparatus for high-resolution continuous scan imaging using vold-kalman filtering

A system for scanning a test subject, comprising:

• one or more moveable sensors to continuously sense an attribute of the test subject during a test mode in which the one or more moveable sensors moves along a path with respect to the test subject, wherein the attribute has a tonal noise component and a broadband noise component;
• a rotational sensor to sense a rotational velocity of a rotational element of the test subject;
• a data acquisition system coupled to the moveable sensors and the rotational sensor, wherein the data acquisition system acquires data associated with the sensed attribute, the position and the orientation of each of the moveable sensors, and the rotational velocity of the rotational element during the test mode;
• a processor to analyze the acquired data and construct a set of transfer functions relating the test data of the moveable sensors to the test data of the rotational sensor;
• and
• a display for providing a visual representation of the tonal noise component of the attribute in a region adjacent the test subject using the set of transfer functions.

A method of imaging a test subject, comprising:

• moving a plurality of moveable sensors along a path around the test subject while continuously acquiring test data that is indicative of an acoustic property of the test subject and test data associated with the rotational velocity of an element of the test subject;
• constructing a set of transfer functions corresponding to points in space that have been visited by the plurality of moveable sensors, each of the transfer functions relating the test data of the plurality of moveable sensors to the test data of the rotational sensor;
• and
• producing a visual representation of the tonal noise component of the attribute in a region adjacent the test subject using the set of transfer functions.