| 摘要 |
PURPOSE:To upgrade the accuracy of the information on the target tracking angle by introducing a simple computer to a tracking radar device which operates by plural receiving frequencies. CONSTITUTION:A transmitter 3 transmits a frequency as specified by a transmitting frequency selection signal (s) to a target from a radar antenna 1. A wave reflected from the target is given to a angle errors signal generator 5 through a receiver 4. An antenna drive controlling section 6 receiving an angle errors signal controls the antenna 1 so that the error signal becomes zero. A signal is sent to a computer 7 from a radar angle signal generator section 7 to direct the angle of a mechanical reference shaft of the antenna 1. A correction value of target tracking angle is calculated from an antenna tracking shaft variation data corresponding to a radar action frequency previously stored and the selection signal (s) to correct the signal for directing the angle of the mechanical reference shaft of the antenna 1, thereby upgrading the accuracy of the information on the target tracking angle. |
