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A radio direction finder (RDF) is a device for finding the direction, or bearing, to a radio source. The act of measuring the direction is known as radio direction finding or sometimes simply direction finding (DF). Using two or more measurements from different locations, the location of an unknown transmitter can be determined; alternately ...
Psychology Today content and its therapist directory are found in 20 countries worldwide. [3] Psychology Today's therapist directory is the most widely used [4] and allows users to sort therapists by location, insurance, types of therapy, price, and other characteristics. It also has a Spanish-language website.
Sense of direction can be measured with the Santa Barbara Sense-of-Direction Scale, [4] a self-assessed psychometric test designed in 2002. [5] This scale has been used to study sense of direction in many contexts, such as driving. [6] It is a standardized self-report measure that assesses an individual's sense of direction. It consists of 27 ...
The first system of radio navigation was the Radio Direction Finder, or RDF. [3] By tuning in a radio station and then using a directional antenna, one could determine the direction to the broadcasting antenna. A second measurement using another station was then taken.
[14] This definition enjoyed widespread currency for decades. However, this meaning was contested, notably by John B. Watson, who in 1913 asserted the methodological behaviorist view of psychology as a purely objective experimental branch of natural science, the theoretical goal of which "is the prediction and control of behavior."
High-frequency direction finding, usually known by its abbreviation HF/DF or nickname huff-duff, is a type of radio direction finder (RDF) introduced in World War II. High frequency (HF) refers to a radio band that can effectively communicate over long distances; for example, between U-boats and their land-based headquarters.
The term attitude with the psychological meaning of an internal state of preparedness for action was not used until the 19th century. [3]: 2 The American Psychological Association (APA) defines attitude as "a relatively enduring and general evaluation of an object, person, group, issue, or concept on a dimension ranging from negative to ...
Decades of scientific research have been conducted developing and evaluating methods for automated emotion recognition. There is now an extensive literature proposing and evaluating hundreds of different kinds of methods, leveraging techniques from multiple areas, such as signal processing, machine learning, computer vision, and speech processing.