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Re: [deviceorientation] Move fingerprintable APIs behind permissions (#85)

From: xia via GitHub <sysbot+gh@w3.org>
Date: Tue, 11 Aug 2020 04:08:28 +0000
To: public-geolocation@w3.org
Message-ID: <issue_comment.created-671712492-1597118907-sysbot+gh@w3.org>
All of my sample data are sampled when the devie stay absolute still on the desk,thus the basic approach(not the improved approach) should work.

According to the description in the paper,the computation steps should be

1. **Data Preprocessing**: compute the difference of data sequence
2. **ADC value recovery**:  take G_0(nominal gain times identity matrix ) as initial G and get an delta_A ,then around the A to integer values to check validity
3. **Gain matrix Estimation**: 

![G](https://user-images.githubusercontent.com/5716282/89856251-4e7ed380-dbcb-11ea-9501-d71f6041caf9.png)




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