passive location
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Passive radar — systems (also referred to as passive coherent location and passive covert radar) encompass a class of radar systems that detect and track objects by processing reflections from non cooperative sources of illumination in the environment, such as… … Wikipedia
Passive smoking — is the involuntary inhalation of smoke from tobacco products. It occurs when tobacco smoke permeates any environment, causing its inhalation by all people within that environment. Such smoke is called secondhand smoke (SHS) or environmental… … Wikipedia
Passive cooling — refers to technologies or design features used to cool buildings without power consumption, such as those technologies discussed in the Passive house project.Passive coolingThe term passive implies that energy consuming mechanical components like … Wikipedia
Passive solar building design — Elements of passive solar design, shown in a direct gain application … Wikipedia
Passive margin — A passive margin is the transition between oceanic and continental crust which is not an active plate margin. It is constructed by sedimentation above an ancient rift, now marked by transitional crust. Continental rifting creates new ocean basins … Wikipedia
Location-based service — A location based service (LBS) is an information and entertainment service, accessible with mobile devices through the mobile network and utilizing the ability to make use of the geographical position of the mobile device. [ [http://www.geo.unizh … Wikipedia
Passive infrared sensor — A Passive InfraRed sensor (PIR sensor) is an electronic device that measures infrared (IR) light radiating from objects in its field of view. PIR sensors are often used in the construction of PIR based motion detectors (see below). Apparent… … Wikipedia
Passive safety device — A passive safety device for vehicles is a safety belt with at least one upper end braced with the shoulder of the vehicle passenger. This upper end of the safety belt is able to be connected by a manually operable belt lock equipped with a… … Wikipedia
Acoustic location — is the art and science of using sound to determine the distance and direction of something. Location can be done actively or passively, and can take place in gases (such as the atmosphere), liquids (such as water), and in solids (such as in the… … Wikipedia
History of passive solar building design — Pre modern History The techniques of passive solar building design were practiced for thousands of years, by necessity, before the advent of mechanical heating and cooling. It has remained a traditional part of vernacular architecture in many… … Wikipedia
Mobile Location Protocol — The Mobile Location Protocol (MLP) is an application level protocol for receiving the position of Mobile Stations (MS: mobile phones, wireless devices, etc) independent of underlying network technology. The MLP serves as the interface between a… … Wikipedia
