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searching for Circulant matrix 5 found (39 total)

Negacyclic convolution (45 words) [view diff] exact match in snippet view article find links to article

convolution or wrapped convolution. It results from multiplication of a skew circulant matrix, generated by vector a, with vector b. Circular convolution theorem

Carrier interferometry (1,628 words) [view diff] exact match in snippet view article find links to article

cyclic prefix in OFDM changes the Toeplitz-like channel matrix into a circulant matrix, the received signal is represented by r = F−1ΛHFF−1Sb = F−1ΛHSb where

Short integer solution problem (2,913 words) [view diff] exact match in snippet view article find links to article

require m≈log⁡q{\displaystyle m\approx \log q} . Definition: The nega-circulant matrix of b{\displaystyle b} is defined as: forb=∑i=0n−1bixi∈R

Jacket matrix (1,053 words) [view diff] exact match in snippet view article find links to article

are pxp Jacket matrix, then [A]N{\displaystyle [A]_{N}} is a block circulant matrix if and only if A0A1rt+A1rtA0{\displaystyle \mathbf {A} _{0}\mathbf

Hadamard's maximal determinant problem (2,385 words) [view diff] exact match in snippet view article find links to article

Attains Ehlich bound 4 2 Hadamard matrix 5 3 Attains Barba bound; circulant matrix 6 5 Attains Ehlich–Wojtas bound 7 9 98.20% of Ehlich bound 8 32 Hadamard