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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 (3,166 words) [view diff] exact match in snippet view article find links to article

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

Jacket matrix (1,256 words) [view diff] exact match in snippet view article find links to article

pxp Jacket matrix, then [ A ] N {\displaystyle [A]_{N}} is a block circulant matrix if and only if A 0 A 1 r t + A 1 r t A 0 {\displaystyle \mathbf {A}

Hadamard's maximal determinant problem (2,429 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