Suppressing cyclically time-varying radar signatures

A radar system comprising:

• a transceiver for sending and receiving radar signals;
• an interface for interfacing with the transceiver;
• and
• a processing module operably coupled to the interface, wherein the processing module is operable to:
• determine whether an observed radar signature varies substantially deterministically;
• when the observed radar signature varies substantially deterministically, receive state telemetry information associated with the observed radar signature and a signal representation for the radar system, wherein the state telemetry information includes rotation angle, yaw angle and rotation rate for an object responsible for the observed radar signature and further wherein the signal representation for the radar system includes data sufficient to determine an I/Q for the radar system;
• based on the state telemetry and the signal representation, determine a characterized radar signature for the object responsible for the observed radar signature;
• and
• based on the characterized radar signature, substantially remove the observed radar signature from radar data.

A method for execution by one or more processing modules of a radar system to create a radar signature mask for a radar signature that varies substantially deterministically, the method comprising:

• collecting state telemetry information associated with an observed radar signature, wherein the state telemetry information includes rotation angle, yaw angle and rotation rate for the object responsible for the observed radar signature;
• acquiring spectral power data for the radar system, wherein the spectral power data for the radar system is synchronized to the state telemetry information;
• and
• based on the state telemetry information and the spectral power data for the radar system, synthesizing a signature mask for the object responsible for the observed radar signature.