Android Gravity sensor data de-noising

public void Onsensorchanged (Sensorevent event)     {          final float alpha = 0.8;          GRAVITY[0] = Alpha * Gravity[0] + (1-alpha) * event.values[0];          GRAVITY[1] = Alpha * Gravity[1] + (1-alpha) * event.values[1];          GRAVITY[2] = Alpha * gravity[2] + (1-alpha) * event.values[2];          Linear_acceleration[0] = event.values[0]-gravity[0];          LINEAR_ACCELERATION[1] = event.values[1]-gravity[1];          LINEAR_ACCELERATION[2] = event.values[2]-gravity[2];      }

The description of the difference equation described by the above code system is:

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The system transfer function is:

Effects such as those seen in:

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Summarize:

In fact, the quality is the construction of first-order filters, in Android through continuous iterative implementation.

Suppose you have the basics of digital signal processing and can be very easy to understand.

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Android Gravity sensor data de-noising