scholarly journals Identification and Removal of Ground Echoes and Anomalous Propagation Using the Characteristics of Radar Echoes

2006 ◽  
Vol 23 (9) ◽  
pp. 1206-1222 ◽  
Author(s):  
Yo-Han Cho ◽  
Gyu Won Lee ◽  
Kyung-Eak Kim ◽  
Isztar Zawadzki
Keyword(s):  
Fuzzy Logic ◽  
Membership Functions ◽  
Echo Intensity ◽  
Radar Echoes ◽  
Lower Elevation ◽  
Fuzzy Logic Approach ◽  
Logic Approach ◽  
Overall Performance ◽  
Anomalous Propagation ◽  
Ground Echoes

Abstract This paper explores the removal of normal ground echoes (GREs) and anomalous propagation (AP) in ground-based radars using a fuzzy logic approach. Membership functions and their weights are derived from the characteristics of radar echoes as a function of radar reflectivity. The dependence on echo intensity is shown to significantly improve the proper identification of GRE/AP. In addition, the proposed method has a better performance at lower elevation angles. The overall performance is comparable with that from a polarimetric approach and can thus be easily implemented in operational radars.

scholarly journals Synthesis of Multicriteria Controller by Means of Fuzzy Logic Approach

2014 ◽  
Vol 2014 ◽  
pp. 1-5
Author(s):  
Andrew Lozynskyy ◽  
Lyubomyr Demkiv
Keyword(s):  
Genetic Algorithm ◽  
Fuzzy Logic ◽  
Control System ◽  
Membership Functions ◽  
Displacement Control ◽  
System A ◽  
Fuzzy Logic Approach ◽  
Logic Approach ◽  
Optimal Values ◽  
Linear And Nonlinear

A two-mass fuzzy control system is considered. For fuzzification process, classical both linear and nonlinear membership functions are used. To find optimal values of membership function’s parameters, genetic algorithm is used. To take into account values of both output and intermediate parameters of the system, a penalty function is considered. Research is conducted for the case of speed control system and displacement control system. Obtained results are compared with the case of the system with classical, crisp controller.

Computing the Probability of Target Detection in Dyanmic Visual Scenes Containing Clutter Using Fuzzy Logic Approach

1998 ◽  
Author(s):  
Thomas Meitzler ◽  
Regina Kistner ◽  
Bill Pibil ◽  
Euijung Sohn ◽  
Darryl Bryk ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Target Detection ◽  
Fuzzy Logic Approach ◽  
Logic Approach ◽  
Visual Scenes

Fuzzy logic approach for knowledge modeling in an Ontology: A review

2020 ◽  
Author(s):  
Abdoul Azize Kindo ◽  
Guidedi Kaladzavi ◽  
Sadouanouan Malo ◽  
Gaoussou Camara ◽  
Theodore Marie Yves Tapsoba ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Knowledge Modeling ◽  
Fuzzy Logic Approach ◽  
Logic Approach
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