Practical Applications
- Olivia MFSK – an amateur-radio digital protocol designed to work in difficult (low signal-to-noise ratio plus multipath propagation) conditions on shortwave bands.
- Balanced Repeated Replication (BRR) – a technique used by statisticians to estimate the variance of a statistical estimator.
- Coded aperture spectrometry – an instrument for measuring the spectrum of light. The mask element used in coded aperture spectrometers is often a variant of a Hadamard matrix.
- Feedback Delay Networks – Digital reverberation devices which use Hadamard matrices to blend sample values
- Plackett–Burman design of experiments for investigating the dependence of some measured quantity on a number of independent variables.
Read more about this topic: Hadamard Matrix
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“The ordinary literary man, even though he be an eminent historian, is ill-fitted to be a mentor in affairs of government. For ... things are for the most part very simple in books, and in practical life very complex.”
—Woodrow Wilson (1856–1924)