Links and notes for ibeacon indoor location
##General links
- Bluetooth Indoor Positioning - http://tam.unige.ch/assets/documents/masters/bekkelien/Bekkelien_Master_Thesis.pdf
- Experiment video with comments from J. Krzych from Estimote - http://www.youtube.com/watch?v=dMWEl6GBGqk
##Trilatertion
- Trileterion Objective-C Demo - https://github.com/MatVre/MiBeaconTrilaterationDemo
- Trilateration math - http://gis.stackexchange.com/questions/66/trilateration-using-3-latitude-and-longitude-points-and-3-distances
- Trilateration for more than 3 points that do not intersect at one point, nonlinear optimization - http://gis.stackexchange.com/questions/40660/trilateration-algorithm-for-n-amount-of-points
- Trilateration math, precision discussion - http://stackoverflow.com/questions/20332856/triangulate-example-for-ibeacons
- Trilateration math with examples - http://everything2.com/title/Triangulate
- A localization strategy based on n-times trilateral centroid with weight - http://onlinelibrary.wiley.com/doi/10.1002/dac.2332/abstract
- BLE (iBeacons) Trilateration - http://stackoverflow.com/questions/19424412/ble-ibeacons-trilateration/20967649#20967649
- Accurate Mobile Robot Localization in indoor environments using Bluetooth - http://www.cse.iitm.ac.in/~ravi/papers/Ashwin_ICRA10.pdf
- Mobile Robot Localization based on Ultra-Wide-Band Ranging: A Particle Filter Approach - http://www.mrpt.org/paperuwb-particle-filter-localization/
##Distance
- RSSI calculations - http://stackoverflow.com/questions/20416218/understanding-ibeacon-distancing
- Bluetooth LE RSSI for proximity detection iOS - http://stackoverflow.com/questions/15687332/bluetooth-le-rssi-for-proximity-detection-ios/17021642
- How accurate measurements are - http://www.quora.com/Bluetooth-Smart-v4-0-Low-Energy/How-accurate-is-range-measurement-in-bluetooth-Smart
- Science Experiment: A Semi-Technical Lowdown on Working with iBeacons - http://www.nten.org/articles/2014/science-experiment-a-semi-technical-lowdown-on-working-with-ibeacons
##GPS
- GPS explained, how it deals with errors - http://electronics.howstuffworks.com/gadgets/travel/gps.htm
##Sensor fusion
- How to detect walking with Android accelerometer - http://stackoverflow.com/questions/4993993/how-to-detect-walking-with-android-accelerometer
- WIFI How to improve accuracy of indoor positioning? http://stackoverflow.com/questions/12098122/how-to-improve-accuracy-of-indoor-positioning
- Indoor wireless navigation - http://www.egr.msu.edu/classes/ece480/capstone/spring11/group02/index.html
- Sensor fusion on Android devices - http://www.youtube.com/watch?v=C7JQ7Rpwn2k
- Pedometer - http://stackoverflow.com/questions/16392142/android-accelerometer-profiling/16539643#16539643
- Sensor fusion ios - http://stackoverflow.com/questions/5894580/sensor-fusion-on-ios-devices
- Madgwick sensor fusion - http://stackoverflow.com/questions/17788043/madgwicks-sensor-fusion-algorithm-on-ios
- Acceleration to movement - http://stackoverflow.com/questions/19727298/my-algorithm-to-calculate-position-of-smartphone-gps-and-sensors/19764828#19764828
##Particle filters
- Particle filter for iBeacon slides - http://blog.andrewcraze.com/2013/12/19/ibeacons-particle-filters-and-cocoaheads/
- Particle filters vs. simple trilateration - http://forums.udacity.com/questions/1014635/particle-filters-vs-simple-triangulation
- "Continuous location and direction estimation with multiple sensors using particle filtering" - http://elib.dlr.de/44240/1/mfi06-particle-final.pdf
- Online simulation - https://www.cs.utexas.edu/~teammco/misc/particle_filter/
- Pertilce filter for beacons - http://dsp.stackexchange.com/questions/9993/how-to-enhance-pedestrian-dead-reckoning-using-particle-filter
- Difference between Kalaman and Particle filter - http://stats.stackexchange.com/questions/2149/what-is-the-difference-between-a-particle-filter-sequential-monte-carlo-and-a
- A Precise Indoor Localization Approach based on Particle Filter and Dynamic Exclusion Techniques - http://www.macrothink.org/journal/index.php/npa/article/viewFile/3717/3396
- Particle filters and their applications - http://web.mit.edu/16.412j/www/html/Advanced%20lectures/Slides/Hsaio_plinval_miller_ParticleFiltersPrint.pdf
- Cursera Artificial Intelligence for Robotics (the course is paid, now was free in 2012 so maybe it can be still found somwhere)- https://www.udacity.com/course/cs373
##Math for particle filters
- Generating Normal (Gaussian) Distributed Random Numbers - http://www.protonfish.com/random.shtml
- Probablity density function - https://www.khanacademy.org/math/probability/random-variables-topic/random_variables_prob_dist/v/probability-density-functions