2. A guidance system as recited in claim 1 wherein said first storage means stores first and second sets of sensed variable membership functions and said first selection means selects sensed linguistic variables based upon the sensed variable signals and sensed variable membership functions.
2. A guidance system as recited in claim 1 wherein said first storage means stores first and second sets of sensed variable membership functions and said first selection means selects sensed linguistic variables based upon the sensed variable signals and sensed variable membership functions. 8. A guidance system as recited in claim 2 wherein said second storage means stores a set of control output membership functions and said second selection means combines the sensed linguistic variables to produce at least one corresponding control output linguistic variable and produces the control output based upon the control output membership functions corresponding to the at least one control output linguistic variable.