I need to measure yaw/heading/azimuth correctly.
Now, I have done with gyro with very strong filtering and the results are very low yaw drift and even when there is perfect calibration then there is no drift but angle measured is not perfect and if there is to and fro motion then there is a difference in angle from reference point become increases
Now, what will be the effect of using dual gyro even with three gyros? can I have better results by using multigyro. If yes then how and also suggest any research paper, fusion algoritm or math, etc.
Note: My environment is highly influenced by electromagnetic waves. So, there is no option for the magnetometer.