The Collaborative International Dictionary of English. 2000.
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… … New Collegiate Dictionary
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 block coding based transmit diversity — (STTD) is a method of transmit diversity used in UMTS third generation cellular systems. STTD is optional in the UTRAN air interface but mandatory for user equipment (UE). STTD utilizes space time block code (STBC) in order to exploit redundancy… … 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
