envelopebaseret

Envelopbaseret is a Danish adjective meaning based on or using an envelope, and it is used in Danish-language technical writing to describe methods that rely on the concept of an envelope. The term appears across fields such as cryptography, signal processing, and data analysis.

In cryptography, envelopebaseret kryptering, or envelope-based encryption, is a common technique where a random data encryption key is used to encrypt the plaintext, and this data key is then encrypted with a public key. The result is transmitted as an envelope containing both the encrypted data and the encrypted key, enabling secure retrieval by the intended recipient.

In signal processing, envelope-based methods use the amplitude envelope of a signal to perform tasks such as demodulation, envelope detection, or feature extraction. These approaches separate the slower varying envelope from the carrier, enabling analysis or classification.

In statistical or data-analytic contexts, envelope-based approaches refer to models or procedures that rely on an outer boundary or envelope of a dataset or function, for instance for smoothing, trend extraction, or robust estimation. The exact meaning depends on the field and the authors.

See also: envelope encryption, envelope detection. The term is used in Danish technical writing to denote methods that are built around the concept of an envelope, with variations depending on the discipline.