| 摘要 |
A blind landing receiver comprises a course channel and a glidepath, whose inputs are inputs of the blind landing receiver, the outputs are connected to signaling inputs of first switching unit, whose output is connected to a signaling input of arithmetic unit through an analog-to-digital converter; also a control unit is introduced, whose first, second and third outputs are connected to the inputs of first switching unit and control input of the analog-to-digital converter correspondingly, the fourth, fifth and sixth inputs of control unit are connected to write and re-write inputs of the arithmetic unit, second output of the analog-to-digital converter are connected to the control unit input. To improve quality of the receiver matching amplifiers and second switching unit are introduced, the outputs of automatic gain control signal of course channel and glidepath are connected to the signaling inputs of second switching unit, whose control input is connected to the control unit first output, the output of second switching unit is connected to the reference voltage input of analog-to-digital converter. |
