APPARATUS FOR CONTROLLING HOMING FILTER OF RADIO-FREQUENCY SEEKER AND METHOD THEREOF

PURPOSE: A device for controlling a homing filter of a radio frequency (RF) seeker and a method thereof are provided to increase an obscuring phenomenon of the RF seeker by controlling signals of the homing filter of the RF seeker. CONSTITUTION: A method for controlling a homing filter of an RF seeker comprises the following steps: determining whether or not the homing filter is initialized (S11); determining whether or not the predicted meeting time of a guided missile and a target is within a first predetermined time (S12); controlling a signal of the homing filter in a meeting mode (S14); controlling the signal of the homing filter in a normal mode when the predicted meeting time of the guided missile and the target is greater than the first predetermined time (S13); determining whether or not a prediction mode is maintained over a second predetermined time (S15); and performing an end mode when the homing filter maintains the prediction mode over the second predetermined time (S16). [Reference numerals] (AA) Start; (BB,DD,FF) No; (CC,EE,GG) Yes; (HH) End; (S11) Initialize a homing filter?; (S12) Is the meeting estimate time is within a first predetermined time?; (S13) Perform a normal mode; (S14) Perform a meeting mode; (S15) Is an estimate mode maintained over a second predetermined time?; (S16) Perform NDK