Binary Signal Detection Theory Example
The leading explanation is the signal detection theory, which at its most basic states that the detection of a stimulus depends on both the intensity of the stimulus and the physical/psychological. Signal Detection Theory (often abridged as sdt) is used to analyze data coming from experiments where the task is to categorize ambiguous stimuli which can be generated either by a known process (called the signal ) or be. The oil trade playbook.
Signal Processing and Detection 1. Section 1.2 studies the theory of optimal detection, which depends on a probabilistic model for the. EXAMPLE 1.1.1 (binary.
US3303425A - Binary detection system - Google Patents US3303425A - Binary detection system - Google Patents Binary detection system Info Publication number US3303425A US3303425A US27175363A US3303425A US 3303425 A US3303425 A US 3303425A US 27175363 A US27175363 A US 27175363A US 3303425 A US3303425 A US 3303425A Authority US Grant status Grant Patent type Prior art keywords noise gaussian signal non means Prior art date 1963-04-09 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Inventor Thomas A Pendleton Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Atlantic Research Corp Original Assignee Atlantic Research Corp Priority date (The priority date is an assumption and is not a legal conclusion.
Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1963-04-09 Filing date 1963-04-09 Publication date 1967-02-07 Grant date 1967-02-07 Links • • • • • Images • Classifications • • H— ELECTRICITY • H03— BASIC ELECTRONIC CIRCUITRY • H03D— DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER • H03D1/00— Demodulation of amplitude-modulated oscillations • H03D1/02— Details • H03D1/04— Modifications of demodulators to reduce interference by undesired signals Description. A Gaussian signal. United States Patent @il 3,333,425 Patented Feb. 7, 1967 ice 3,303,425 BINARY DETECTION SYSTEM Thomas A.
Pendleton, Adelphi, Md., assignor to Atlantic Research Corporation, a corporation of 'Virginia Filed Apr. 9, 1963, Ser. 271,753 7 Claims.
S28- 165) This invention relates to an improved binary detection system for detecting the presence of a weak signal in noise. More specifically, it relates to a system for enhancing the detection of these signals by reducing the degradation of detecta-bility caused by intermittent or pulse noise.
Binary Signal Detection Theory Examples
A binary detector is essentially an energy-measuring device which discriminates between the two states of signal and noise, and noise alone, on the basis of the difference in energy which t-hese two states represent. The signal being detected is a random or noise-like function, as distinguished from a deterministic function. This random signal may be indistinguishable from its Gaussian noise background and is often referred to as When detection of these type signals is to be made in the presence of Gaussian noise, binary detector structures are readily available in the art. For example, Middleton: Introduction to Statistical Communication Theory, McGraw-Hill, 1960, Chapters 19 and 20. Middleton discloses a system for deterf mining whether or not a noise-like signal, having unknown waveform, is present in a Gaussian noise background. His system comprises filtering, square-law rectification or detection, integration and indication.
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Signal Detection Theory
Lf the power spectra of the signal and noise are known then the input wave filter is chosen to maximize the signal-to-noise ratio, c g., low-pass, band-pass, etc. In addition to Gaussian noise, the background of these Gaussian signals may include intermittent or pulse noiseA noise reachesV the integrator, additional fluctuations will occur in the integrator output which alarm as described above. However, by understanding the cause of this false alarm, I can now regain those lost signals by minimizing or eliminating the effect of this pulse noise on the integrator. In this manner a new threshold will not be required in the system and the degradation ofv detectability is reduced. i option online binary options Accordingly, an object of the present invention is to provide a binary detector having improved apparatus for discriminating between the t'wo states of signal and noise and noise alone. A second object is to provide -an improved binary detector which minimizes or eliminates the effect of pulse noise and there-by reduces the degradation of detectability caused by this noise. Other objects and advantages of this invention will become apparent by a reading of the following description in conjunction with the drawings wherein: FIGURE 1 is a block diagram of ya detector system embodying my invention; FIGURE 2 is a schematic diagram of a limiter circuit which may be usedl in my detector systems in accordance with my invention, showing representative wave forms at selected points; and FIGURE 3 is a block diagram of a multi-channel detector system embodying my invention.