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Rf (radio frequency)
| CCTV glossary (глоссарий терминов по видеонаблюдению) |
A frequency at which coherent electromagnetic radiation of energy is useful for communication purposes. also, the entire range of such frequencies.
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Electromagnetic, английский
Communication, английский
- Связь; связной
- (кан.) решение экспертизы
- N коммуни- кация; процесс передачи информации; mis~ недопонимание, непонимание | attr. комму- никативный disorder, impairment, strategy cross-cultural (intercultural) ~ межкультурная коммуникация non-verbal ~ невербальная, неречевая комму- никация verbal ~ вербальная, речевая коммуникация
- Передача (распространение) информации процесс информирования населения.
- Corresponding by letter, hail, or signal. (see line of communication and boyaux.)
- Loosely, the transmission of structure across systems differentiated in time and in space, the process by which one mind affects another, interaction mediated by signals, symbols or messages. more formally and in cybernetics, communication is that construct an observer requires when he cannot take a dynamic system apart without loss (->ana~ysis), yet wants to distinguish, understand and say something about that system`s parts, variables or members, or alternatively, when he wants to explain the behavior of anyone of its parts yet cannot accomplish this adequately without reference to other parts of the system. communication ~s what integrates and distinguishes the participation of individuals in such wholes as groups, communities, societies. a more detailed analysis of communication processes reveals that they involve patterns that convey information, are subjected to numerous constraints and are describable in terms of transformations, including encoding, decoding, (->coding), transmission, and distortions due to the characteristics of a channel. historically, communication. was thought of as a binary relation between a sender and a receiver. modern conceptions of communication include complex networks possibly with feedback loops having the effect of memory, coordination, and coorientation and exhibiting dynamic properties not manifest in, and explainable by, reference to the properties of the.communicators involved (->constructivism). communications (plural
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Scanning, английский
- The process of moving the electron beam of a pickup tube or a picture tube across the target or screen area of a tube.
- Сканирование
- The process of breaking down an image into a series of elements or groups of elements representing light values and transmitting this information in time sequence.
- 1. the act of examining an area with the eyes 2. the act of examining internal organs of the body with a piece of electronic equipment
- Reading through a text to locate specific information only.
- Movement of the transducer over the surface of the test object in a controlled manner so as to achieve complete coverage. may be either a contact or immersion technique.
- Movement of a sensor (for example, eye) over the surface of a test object in a controlled manner so as to achieve complete coverage.
- Movement of the transducer over the surface of the test object in a controlled manner so as to achieve complete coverage. may be either a contact or immersion technique.7
Retained image, английский
Also called image burn. a change produced in or on the target which remains for a large number of frames after the removal of a previously stationary light image and which yields a spurious electrical signal corresponding to that light image.
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