space-time

space-time
noun Date: 1915 1. a system of one temporal and three spatial coordinates by which any physical object or event can be located — called also space-time continuum 2. the whole or a portion of physical reality determinable by a usually four-dimensional coordinate system; also the properties characteristic of such an order

New Collegiate Dictionary. 2001.

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  • space-time — space time, n. the four dimensional coordinate system in which all physical objects of the known universe are located, and in which all physical events occur; it consists of three spatial dimensions and one time dimension; also called the {space… …   The Collaborative International Dictionary of English

  • Space–time trellis code — Space–time trellis codes (STTCs) are a type of space–time code used in multiple antenna wireless communications. This scheme transmits multiple, redundant copies of a trellis (or convolutional) code distributed over time and a number of antennas… …   Wikipedia

  • Space-time adaptive processing — (STAP) is a signal processing technique most commonly used in radar systems. It involves adaptive array processing algorithms to aid in target detection. Radar signal processing benefits from STAP in areas where interference is a problem (i.e.… …   Wikipedia

  • space-time continuum — space time space time, n. the four dimensional coordinate system in which all physical objects of the known universe are located, and in which all physical events occur; it consists of three spatial dimensions and one time dimension; also called… …   The Collaborative International Dictionary of English

  • Space–time block code — This article deals with coherent space–time block codes (STBCs). For differential space–time block codes, see differential space–time codes.Space–time block coding is a technique used in wireless communications to transmit multiple copies of a… …   Wikipedia

  • Space-time tradeoff — In computer science, a space time or time memory tradeoff is a situation where the memory use can be reduced at the cost of slower program execution, or vice versa, the computation time can be reduced at the cost of increased memory use. As the… …   Wikipedia

  • Space–time code — A space ndash;time code (STC) is a method employed to improve the reliability of data transmission in wireless communication systems using multiple transmit antennas. STCs rely on transmitting multiple, redundant copies of a data stream to the… …   Wikipedia

  • space-time continuum — noun see space time …   New Collegiate Dictionary

  • Differential space–time code — Differential space–time codes[1][2] are ways of transmitting data in wireless communications. They are forms of space–time code that do not need to know the channel impairments at the receiver in order to be able to decode the signal. They are… …   Wikipedia

  • Space — is the extent within which matter is physically extended and objects and events have positions relative to one another [ [http://www.britannica.com/eb/article 9068962/space Britannica Online Encyclopedia: Space] ] . Physical space is often… …   Wikipedia

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