elektronika: Analog computer

Evidence: 100 • authority: 72

Evidence: 57 • authority: 72

Evidence: 43 • authority: 92

A Calibrated Multi-Dimensional Evaluation Framework for Diffusion-Based Radio Frequency Signal Generation.. Evaluation of generative models for RF (Radio Frequency) signals remains largely ad hoc, with existing approaches relying on uncalibrated metrics imported from computer vision without systematic justification or baseline establishment. We present a multi-dimensional, distribution-level evaluation framework comprising ten metrics across six layers, calibrated against real-real baselines. A real-real baseline is computed by splitting authentic signals into two independent subsets and measuring the same metric between them; the resulting value sets the achievable ceiling for that metric,…

Evidence: 43 • authority: 72

Digital data or digital information, in information theory and information systems, is data or information represented as a string of discrete symbols, each of which can take on one of only a finite number of values from some alphabet, such as letters or digits. An example is a text document, which consists of a string of alphanumeric characters. The most common form of digital data in modern information systems is binary data, which is represented by a string of binary digits (bits) each of which can have one of two values, either 0 or 1. Digital data can be contrasted with analog data, which is represented by a value from a continuous range of real numbers. Analog data is transmitted by a…

Evidence: 43 • authority: 92

Evidence: 43 • authority: 72

Evidence: 43 • authority: 72

Evidence: 38 • authority: 72

Signal modulation is the process of varying one or more properties of a periodic waveform in electronics and telecommunication for the purpose of transmitting information. The process encodes information in the form of a message signal modulated onto a carrier signal to be transmitted. For example, the message signal might be an audio signal representing sound from a microphone, a video signal representing moving images from a video camera, or a digital signal representing a sequence of binary digits, a bitstream from a computer. Carrier waves are necessary when the frequency of the message is too low to practically transmit. Generally, receiving a radio wave requires a radio antenna with a…

Evidence: 38 • authority: 72

An analog stick (analogue stick in British English), also known as a control stick, thumbstick or joystick, is an input method designed for video games that translates thumb movement into directional control. It consists of a protruding stick mounted on a pivot, with movement registered through continuous electrical signals rather than discrete switches, allowing for greater nuance than traditional digital inputs. Unlike D-pads, which rely on fixed electrical contacts, analog sticks typically use potentiometers to measure their position across a full range of motion. Many models allow the stick to be pressed down like a button, allowing users to execute commands without removing their thumb…

Evidence: 38 • authority: 72

Sound can be recorded and stored and played using either digital or analog techniques. Both techniques introduce errors and distortions in the sound, and these methods can be systematically compared. Musicians and listeners have argued over the superiority of digital versus analog sound recordings. Arguments for analog systems include the absence of fundamental error mechanisms which are present in digital audio systems, including aliasing and associated anti-aliasing filter implementation, jitter and quantization noise. Advocates of digital point to the high levels of performance possible with digital audio, including excellent linearity in the audible band and low levels of noise and dist…

Evidence: 38 • authority: 72

Evidence: 35 • authority: 92