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Digital antenna array (DAA) is a smart antenna with multi channels digital beamforming, usually by using fast Fourier transform (FFT). The development and practical realization of digital antenna arrays theory started in 1962 under the guidance of Vladimir Varyukhin ( USSR ).
The Data Authentication Algorithm (DAA) is a former U.S. government standard for producing cryptographic message authentication codes. DAA is defined in FIPS PUB 113, [1] which was withdrawn on September 1, 2008. [citation needed] The algorithm is not considered secure by today's standards.
Direct Anonymous Attestation (DAA) is a cryptographic primitive which enables remote authentication of a trusted computer whilst preserving privacy of the platform's user. . The protocol has been adopted by the Trusted Computing Group (TCG) in the latest version of its Trusted Platform Module (TPM) specification [1] to address privacy concerns (see also Loss of Internet anonymi
FIPS PUB 113 Computer Data Authentication 1985, specifies a Data Authentication Algorithm (DAA) based on DES, adopted by the Department of Treasury and the banking community to protect electronic fund transfers. FIPS PUB 140-2 Security Requirements for Cryptographic Modules 2001, defines four increasing security levels
Detect and avoid (DAA) is a set of technologies designed to avoid interference between a given emitter and the wireless environment. [1] Its need was generated by the Ultra-wideband (UWB) standard that uses a fairly large spectrum to emit its pulses. According to the U.S. Federal Communications Commission (FCC), UWB can use from 3.1 to 10.6 GHz.
Total harmonic distortion (THD) is the sum of the powers of all the harmonics of the input signal [8] If the maximum DNL is less than 1 LSB, then the D/A converter is guaranteed to be monotonic. However, many monotonic converters may have a maximum DNL greater than 1 LSB. [8] Time domain performance: Glitch impulse area (glitch energy) [8]
A data structure known as a hash table.. In computer science, a data structure is a data organization and storage format that is usually chosen for efficient access to data. [1] [2] [3] More precisely, a data structure is a collection of data values, the relationships among them, and the functions or operations that can be applied to the data, [4] i.e., it is an algebraic structure about data.
(Specifically, C is the non-leading coefficients of the lexicographically first irreducible degree-b binary polynomial with the minimal number of ones: 0x1B for 64-bit, 0x87 for 128-bit, and 0x425 for 256-bit blocks.) If msb(k 1) = 0, then k 2 = k 1 ≪ 1, else k 2 = (k 1 ≪ 1) ⊕ C. Return keys (k 1, k 2) for the MAC generation process.