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Early digital systems may have suffered from a number of signal degradations related to the use of analog anti-aliasing filters, e.g., time dispersion, nonlinear distortion, ripple, temperature dependence of filters etc. [20]: 8 Using an oversampling design and delta-sigma modulation, a less aggressive analog anti-aliasing filter can be ...
Digitizing, or converting analog signals into digital form, was first developed in 1903 with the invention of pulse-code modulation (PCM) for telephone communications. [13] Electronic encryption, which allowed for the secure transmission of information over electronic channels, was developed between 1935 and 1945 and played a crucial role in ...
Analog observation is, in contrast to naturalistic observation, a research tool by which a subject is observed in an artificial setting. [1] Typically, types of settings in which analog observation is utilized include clinical offices or research laboratories, but, by definition, analog observations can be made in any artificial environment, even if the environment is one which the subject is ...
Cyberpsychology (also known as Internet psychology, web psychology, or digital psychology) is a scientific inter-disciplinary domain that focuses on the psychological phenomena which emerge as a result of the human interaction with digital technology, particularly the Internet.
Data transmitted may be digital messages originating from a data source, for example a computer or a keyboard. It may also be an analog signal such as a phone call or a video signal, digitized into a bit-stream for example using pulse-code modulation (PCM) or more advanced source coding (analog-to-digital conversion and data compression) schemes.
In research, these professions typically require a graduate degree (Master's, Doctorate, PhD, or D.Phil.) in a field related to educational psychology, educational media, experimental psychology, cognitive psychology, or, more purely, in the fields of educational, instructional or human performance technology or instructional design.
It could be the transfer of an analog signal, using an analog modulation method such as frequency modulation (FM) or amplitude modulation (AM), or no modulation at all. Some textbooks also consider passband data transmission using a digital modulation method such as ASK, PSK and QAM, i.e. a sinewave modulated by a digital bit-stream, as analog ...
Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. This is in contrast to analog electronics which work primarily with analog signals.