Magnetic Compensation Of Magnetic Noises Related To Aircraft’S Maneuvers In Airborne Survey

For a variety of applications, magnetic data is collected from airborne platforms. Normally, this<br>data is collected with sensors that measure the total field or amplitude of the magnetic vector data. New<br>generations of optically pumped sensors are extremely sensitive with their sensitivity quoted often in<br>picoteslas. At present, some new instrumentation is also attempting to measure high accuracy vector<br>data. Despite the accuracy of modern sensors and data acquisition systems, the noise of the flying<br>platform is still one of the limiting factors in obtaining highly accurate data.<br>The aircraft or helicopter itself emanates magnetic signals. These signals are due to a number of<br>factors including induced fields due to magnetically susceptible materials and permanent magnetic<br>materials on the platforms as well as both induced electromagnetic signals and electromagnetic signals<br>generated either by electrical systems or moving parts such as rotors.<br>This subject of this paper are problems and techniques related to removing the effects of the<br>moving platform as well as attempts to study the subject with the use of simulated data.