frequency analysis

1) криптоанализ на основе частоты появления (встречаемости) букв (знаков) алфавита
2) частотный анализ (сигналов)

Англо-русский словарь по компьютерной безопасности. . 2011.

Смотреть что такое "frequency analysis" в других словарях:

  • Frequency analysis — In cryptanalysis, frequency analysis is the study of the frequency of letters or groups of letters in a ciphertext. The method is used as an aid to breaking classical ciphers.this is wrong is based on the fact that, in any given stretch of… …   Wikipedia

  • frequency analysis — dažninė analizė statusas T sritis automatika atitikmenys: angl. frequency analysis vok. Frequenzanalyse, f rus. частотный анализ, m pranc. analyse de fréquences, f …   Automatikos terminų žodynas

  • frequency analysis — dažninė analizė statusas T sritis fizika atitikmenys: angl. frequency analysis vok. Frequenzanalyse, f rus. частотный анализ, m pranc. analyse des fréquences, f; analyse fréquencielle, f …   Fizikos terminų žodynas

  • frequency analysis — / fri:kwənsi əˌnæləsɪs/ noun analysis of frequency distribution statistics …   Marketing dictionary in english

  • frequency analysis — Mktg a technique for comparing the number of opportunities to reach the same target audience in different media …   The ultimate business dictionary

  • Frequency analysis (disambiguation) — Frequency analysis may refer to:* Frequency analysis (cryptanalysis) * A method to find the frequency spectrum of a function, wave, or signal * A method to arrive at frequency distributions of phenomena …   Wikipedia

  • Time-frequency analysis — is a body of techniques for characterizing and manipulating signals whose component frequencies vary in time, such as transient signals.Whereas the technique of the Fourier transform can be used to obtain the frequency spectrum of a signal whose… …   Wikipedia

  • Configural frequency analysis — (CFA) (Lienert, 1969) is a method of exploratory data analysis. The goal of a configural frequency analysis is to detect patterns in the data that occur significantly more (such patterns are called Types) or significantly less often (such… …   Wikipedia

  • Cumulative frequency analysis — is the applcation of estimation theory to exceedance probability (or equivalently to its complement). The complement, the non exceedance probability concerns the frequency of occurrence of values of a phenomenon staying below a reference value.… …   Wikipedia

  • Analysis — (from Greek ἀνάλυσις , a breaking up ) is the process of breaking a complex topic or substance into smaller parts to gain a better understanding of it. The technique has been applied in the study of mathematics and logic since before Aristotle,… …   Wikipedia

  • Frequency distribution — In statistics, a frequency distribution is an arrangement of the values that one or more variables take in a sample. Each entry in the table contains the frequency or count of the occurrences of values within a particular group or interval, and… …   Wikipedia

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