https://github.com/jlnaudin/x-VTOLdrone
https://github.com/apachecn/awesome-drones-zh
https://github.com/Pana/awesome-drone
https://github.com/topics/drones?l=c&o=desc&s=stars
https://github.com/Matthias84/awesome-flying-fpv
https://opensource.com/article/18/2/drone-projects
https://blog.paparazziuav.org/category/software/
greatest common divisor，gcd
Prime number
https://en.wikipedia.org/wiki/Pi
infinitely repeating number
https://en.wikipedia.org/wiki/Mathematical_constant
https://en.wikipedia.org/wiki/BLAKE_(hash_function)
https://en.wikipedia.org/wiki/Secure_Hash_Algorithms
https://en.wikipedia.org/wiki/SHA-1
https://en.wikipedia.org/wiki/SHA-3
https://en.wikipedia.org/wiki/MD4
https://en.wikipedia.org/wiki/List_of_hash_functions
https://en.wikipedia.org/wiki/MurmurHash
https://en.wikipedia.org/wiki/Distributed_hash_table
hashcode algorithms hash table lookup
https://www.tutorialspoint.com/data_structures_algorithms/hash_data_structure.htm
Shannon Forward Error Correction FEC Hamming Code Reed Solomon Code Bose Chaudhuri Hocquengham Code LDPC Trellis Coded Modulation TCM Viterbi Code Turbo code TLDPC
https://www.comtechefdata.com/technologies/fec
https://onlinelibrary.wiley.com/doi/10.1002/dac.4439
Medical data transmission using the product of TLDPC and BCH error control coding systems with two interleavers - Kamalakannan - 2020 - International Journal of Communication Systems - Wiley Online Library
https://en.wikipedia.org/wiki/Low-density_parity-check_code
