kanakanho

<a href="https://zenn.dev/yukichi_tech/articles/1539483ed67180" target="_blank">Bluetooth発信端末からの距離測定方法の勉強</a>
<a href="https://iotandelectronics.wordpress.com/2016/10/07/how-to-calculate-distance-from-the-rssi-value-of-the-ble-beacon/" target="_blank" rel="nofollow noopener noreferrer">BLEビーコンのRSSI値から距離を計算する方法</a>
<a href="https://www.beaconzone.co.uk/blog/what-is-beacon-measured-power/" target="_blank" rel="nofollow noopener noreferrer">What is iBeacon Measured Power?</a>
<a href="https://www.beaconzone.co.uk/choosingthetransmittedpower" target="_blank" rel="nofollow noopener noreferrer">Choosing the Transmitted Power</a>
<a href="https://www.ibsjapan.co.jp/tech/details/metageek-solution/wifi-signal-strength-basics.html" target="_blank" rel="nofollow noopener noreferrer">Wi-Fiの知識 － WiFiの信号強度を理解する</a>

<a href="https://qiita.com/shu223/items/7c4e87c47eca65724305" target="_blank" rel="nofollow noopener noreferrer">RSSI と TxPower からビーコンとの距離および近接度（Proximity）を推定する</a>
<a href="https://cir.nii.ac.jp/crid/1050574047125023360" target="_blank" rel="nofollow noopener noreferrer">Beacon配置空間での近傍点推定方式</a>
<a href="https://ipsj.ixsq.nii.ac.jp/ej/?action=pages_view_main&amp;active_action=repository_view_main_item_detail&amp;item_id=141701&amp;item_no=1&amp;page_id=13&amp;block_id=8" target="_blank" rel="nofollow noopener noreferrer">無線LANの端末側測位と基地局側測位を用いた測位精度改善手法</a>
<a href="https://cir.nii.ac.jp/crid/1050574047071791744" target="_blank" rel="nofollow noopener noreferrer">単位RSSI値の強弱の推定による位置推定精度の向上</a>
10^((x+b)/((a-10)*n)) 
(a - 10) * n * log(10,x) -b

<a href="https://blog.reinforce-lab.com/post/2013-08-13-blebook-ch2-ble-spec/" target="_blank" rel="nofollow noopener noreferrer">BLEの通信仕様</a>