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Linear block codes have the property of linearity, i.e. the sum of any two codewords is also a code word, and they are applied to the source bits in blocks, hence the name linear block codes. There are block codes that are not linear, but it is difficult to prove that a code is a good one without this property.
Egyptian pyramids. Coordinates: 29°58′21″N 31°07′42″E. A view of the Giza pyramid complex from the plateau to the south of the complex. From left to right, the three largest are: the Pyramid of Menkaure, the Pyramid of Khafre and the Great Pyramid of Giza. The three smaller pyramids in the foreground are subsidiary structures ...
In mathematical terms, Hamming codes are a class of binary linear code. For each integer r ≥ 2 there is a code-word with block length n = 2r − 1 and message length k = 2r − r − 1. Hence the rate of Hamming codes is R = k / n = 1 − r / (2r − 1), which is the highest possible for codes with minimum distance of three (i.e., the minimal ...
The Baroque Cycle is a series of novels by American writer Neal Stephenson. It was published in three volumes containing eight books in 2003 and 2004. The story follows the adventures of a sizable cast of characters living amidst some of the central events of the late 17th and early 18th centuries in Europe, Africa, Asia, and Central America.
Neil Sheehan, war correspondent, writing before the mass attacks on heavily populated cities including North Vietnam's capital. On 22 November 1972, a B-52D (55-110) from U-Tapao was hit by a SAM while on a raid over Vinh. The crew was forced to abandon the damaged aircraft over Thailand. This was the first B-52 destroyed by hostile fire. The zenith of B-52 attacks in Vietnam was Operation ...
Box office. $859,834 [1] Arcadian is a 2024 action horror film directed by Ben Brewer from a screenplay by Michael Nilon. It stars Nicolas Cage as the father of two teenage boys, all trying to survive in a post-apocalyptic world. The film premiered at South by Southwest on March 11, 2024, followed by a theatrical release in the United States on ...
Former name: Atlantic Air Transport; former IATA codes: 7M, DG, transferred to Atlantic Flight Training in 2014. QB AAJ Air Alma: AIR ALMA Canada Ceased operations 10/01/2002; former IATA code: 4L ACS Air Cess: Liberia defunct ADT Air Dorval: AIR DORVAL Canada defunct AHN Air Hungaria: AIR HUNGARIA Hungary AHR Air Adriatic: ADRIATIC Croatia ...
A negacyclic code is a constacyclic code with λ=-1. A quasi-cyclic code has the property that for some s, any cyclic shift of a codeword by s places is again a codeword. A double circulant code is a quasi-cyclic code of even length with s=2. Quasi-twisted codes and multi-twisted codes are further generalizations of constacyclic codes.