Hadamard Codes and Sphere Packing
Explores the connection between Hadamard codes and sphere packing, using Construction A to create dense packings like E8.
Explores the connection between Hadamard codes and sphere packing, using Construction A to create dense packings like E8.
NASA's Mariner 9 used Hadamard codes to encode Mars images for error-correcting transmission, explained with matrix construction and decoding.
Explores Hadamard matrices, their construction methods, and recent progress in filling gaps below order 2000.