Environmental noise reduction for magnetometry

A method for signal noise reduction and detection system, comprising:

• receiving a data input from a first total field scalar magnetometer;
• receiving a data input from a vector magnetometer;
• receiving a data input from a position, velocity and heading sensor;
• processing the received data inputs with a signal processor configured with a pre-processor system, an adaptive noise cancellation system and a detection system, the pre-processor system configured to carry out initial processing of data received from the first total field scalar magnetometer, the vector magnetometer and the position, velocity and heading sensor, the pre-processor configured to convert data derived from the first total field scalar magnetometer, the vector magnetometer and the position, velocity and heading sensor to the frequency domain and pass the converted data to the adaptive noise cancellation system, the adaptive noise cancellation system configured to carry out multivariate regression on the converted data in order to reduce detected noise, and the detection system configured to detect magnetic anomalies;
• and
• outputting in real time data about detected magnetic anomalies to a user interface.

A system, comprising:

• a vehicle;
• a magnetic sensor suite, at least some of which is physically coupled to the vehicle;
• the magnetic sensor suite including at least a first total field scalar magnetometer, a vector magnetometer, and a position, velocity and heading sensor;
• a user interface;
• a magnetic noise reduction and detection system including:
• an input configured to receive data from the first total field scalar magnetometer,
• an input configured to receive data from the vector magnetometer,
• an input configured to receive data from the position, velocity and heading sensor;
• a signal processor configured with a pre-processor system, an adaptive noise cancellation system and a detection system, the pre-processor system configured to carry out initial processing of data received from the first total field scalar magnetometer, the vector magnetometer and the position, velocity and heading sensor;
• the pre-processor configured to convert data derived from the first total field scalar magnetometer, the vector magnetometer and the position, velocity and heading sensor to the frequency domain and pass the converted data to the adaptive noise cancellation system;
• the adaptive noise cancellation system configured to carry out multivariate regression on the converted data in order to reduce detected noise;
• and
• the detection system configured to detect magnetic anomalies and output information about the magnetic anomalies to the user interface.