A Recursive Fuzzy System for Monitoring the Detection Performance in Digital Receivers
نویسنده
چکیده
The paper studies the analogies and parallelism between the Bayesian approach for digital symbol sequences detection in communications problems and the techniques known as Multiple Hypotheses Tracking, which rely on fuzzy systems and inference. This comparison leads to the development of a SAM fuzzy recursive system which online estimates the performance of a blind Bayesian equalizer in a single-user digital communications scenario. Its low computational load as well as its efficiency in time-variant channels constitute its main advantages.
منابع مشابه
A Comprehensive Performance Analysis of Direct Detection Receivers inWDMASystems
In this work the performance of a wavelength division multiple access (WDMA) system with direct detection receiver is investigated. For this purpose, the probability of error in a WDMA network with OOK modulation considering crosstalk, ISI, photo detector noise and thermal noise is calculated and the effect of each on system performance is investigated. The system performance in presence of PIN...
متن کاملEnhancement of Noise Performance in Digital Receivers by Over Sampling the Received Signal
In wireless channel the noise has a zero mean. This channel property can be used in the enhancement of the noise performance in the digital receivers by oversampling the received signal and calculating the decision variable based on the time average of more than one sample of the received signal. The averaging process will reduce the effect of the noise in the decision variable that will approa...
متن کاملOnline Fault Detection and Isolation Method Based on Belief Rule Base for Industrial Gas Turbines
Real time and accurate fault detection has attracted an increasing attention with a growing demand for higher operational efficiency and safety of industrial gas turbines as complex engineering systems. Current methods based on condition monitoring data have drawbacks in using both expert knowledge and quantitative information for detecting faults. On account of this reason, this paper proposes...
متن کاملFault Detection Based on Type 2 Fuzzy system for Single-Rod Electrohydraulic Actuator
Electro-hydraulic systems with regards to the their specific features and applications among other industrial systems including mechanical, electrical and pneumatic systems, have been widely taken into consideration by the scientists and researchers. Due to the fact that the electro-hydraulic system is inherently a nonlinear system, has some problems such as signals saturation, nonlinear effici...
متن کاملEdge Detection Based On Nearest Neighbor Linear Cellular Automata Rules and Fuzzy Rule Based System
Edge Detection is an important task for sharpening the boundary of images to detect the region of interest. This paper applies a linear cellular automata rules and a Mamdani Fuzzy inference model for edge detection in both monochromatic and the RGB images. In the uniform cellular automata a transition matrix has been developed for edge detection. The Results have been compared to the ...
متن کامل