ADIS16488 Gyro Output Noise


When using ADIS16488 to acquire the raw data, I found that the output noise of gyro is too big when the ADIS16488 is static. For your reference, the pitch value of ADIS16488 is attached below. From the figure, it is easy to see that the output noise is too big, so could you help me to solve this problem? Do I need to use the filter bank, if so, how to? and also from the datasheet it tells us that this sensor can have a resolution with 3.5*10-7 deg/LSB, it means when the sensor is static, the output should be in the range of 1e-6deg?