Research and Simulation Analysis on Research on Secondary Radar Signal Coverage

The primary radar uses the reflected echo signal to identify the target information, and the secondary radar uses the echo signal of the receiving transponder to obtain the target information. Compared with primary radar, secondary radar can transmit more information, so secondary radar is widely used in civil aviation field. Due to the rapid economic development, more and more ultra-high buildings have appeared around secondary radar stations. The ultra-high buildings will block the signal transmission, and in severe cases, the aircraft will not be able to receive signals normally, which will endanger civil aviation. safe operation. Therefore, this article first analyzes the signal transmission of the secondary radar, establishes a digital model of the signal transmission in space, analyzes the loss caused by the building to the radar through the Finier area, and finally verifies its feasibility through simulation software.