FM -CW intermediate frequency signal processing apparatus

The utility model provides a FM -CW intermediate frequency signal processing apparatus belongs to radio altimeter echo signal's processing apparatus. Can more real artificial antenna electrical height the echo signal of table, very important's effect is had for the quiet dynamic characteristic who verifies the radio altimeter. Radio frequency choking coil I links to each other with radio frequency choking coil II for the balanced mixer, radio frequency choking coil I links to each other with wave filter I, and radio frequency choking coil II links to each other with wave filter II, wave filter I links to each other with amplitude controller I, and wave filter II links to each other with amplitude controller II. The utility model has the characteristics of good output characteristic can be according to radio altimeter radiofrequency signal, the higher intermediate frequency signal processing of precision simulates out. The utility model discloses echo signal simulation to the frequency modulation continuous wave of final formation is more lifelike, credible.