The results show that the fiduciary levels of prediction model are different for the same oil sample with the different membership function or for the different oil sample with the same membership function.
The main steps of this method are to build the subordinate function of raw data, the fuzzy control rule, and fuzzy transducer as well as to bring response to action. Proceeding from the relative bearing, and combining it with fuzzy control, it lays stress on the analysis of pure-maneuver defending. Finally, it obtains a fuzzy control table for submarines against acoustic-homing torpedoes.
As no parameters to be adjusted in the Chebyshev membership functions and just adopting BP algorithm studying parameters of fuzzy rules,the computing greatly reduced and the simple model structure、the fast convergence and the high precision of identification were obtained.
This paper presents a simplified Kóczy's linear interpolative reasoning method based on Taylor progression, which can guarantee " If fuzzy rules A 1B 1, A 2B 2 and the observation A * are defined by triangular membership functions, then the interpolated conclusion B * is linearity and convexity ".
The input and outputvariables are change to the fuzzy quantity, the statement field of the input and outputvariables are set up, the subjection function of the input variable e, ec and that of theoutput variables K'P K'I and K'D are confirmed.
During the topology optimization of the load pan, the combination of the homogenization and artificial density method is adopted, and the concept of density subjection function and relative density is introduced, consequently, the traditional topology optimization issue is transformed to the optimum distribution of materials.
In the second step of "palpating", we adopt a new membership function of the fast shock events for the ISF method.
It gets a membership function through the histogram, and the membership function contains a lot of information of original image.
Then a weighted fuzzy mean filter is established based on this membership function; meanwhile, the filter adaptively adopts different filter scale according to the character divergence of image region and intensity of impulsive noise.
New methods of fitting the membership function of oceanic water masses
At the same time, by comparing with membership function value of each index, the order of each grass drought-resistance was decided.