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. 3. A guidance system as recited in claim 2 wherein said sensing means additionally includes means for determining the difference between the sensed bearing signals and the rate of change of the bearing signals difference and wherein said first and second sensed linguistic variables and membership function sets correspond to the difference in the bearing signals and the rate of change in the difference of the bearing signals.