Tag: Hadamard
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The Hadamard Code: From Mars to Single-Pixel Cameras
Imagine it’s 1971, and you’re a scientist at NASA. You’ve just launched Mariner 9, the first spacecraft to orbit another planet, and it’s sending back photos of Mars. But there’s a catch: the data has to travel millions of miles through space, and any interference could corrupt the images. How do you ensure those precious…