Realistic simulation method for satellite signals

Abstract

The invention discloses a realistic simulation method for satellite signals. The method comprises the following steps of radio frequency interference simulation, environment noise simulation, ionizedlayer error simulation, troposphere error simulation and error introduction simulation calculation. The method has the advantages that errors and interference of a satellite propagation process are divided into radio frequency interference, environmental noise, ionized layer errors and troposphere errors through the method, and the errors and the interference are simulated through a mathematical method and finally introduced into satellite propagation simulation calculation, so that the propagation simulation process of the satellite signals is more consistent with real situations; satellite position and speed are calculated through an earth-centered earth-fixed coordinate system, and different earth-centered earth-fixed coordinates are adopted according to different satellite types so that different satellites can use more targeted mathematical models to obtain more real simulation results.

Description

technical field [0001] The invention relates to the technical field of electronic information, in particular to a real simulation method of satellite signals. Background technique [0002] Due to the low cost, convenient operation, powerful functions and easy acquisition of drones, it is easy to form "black flying". Usually, due to their slow flight speed, small size, and low flying altitude, these UAVs have a small radar reflection cross-sectional area and are difficult to be detected and intercepted. Some unqualified and unapproved individuals and organizations use drones to carry out flight activities and easily pose serious security threats to national society, air routes, key targets, and large-scale activities. What's more serious is that some criminals can use drones to carry explosives, cameras, drugs, etc., causing great security risks to important areas such as prisons, airports, nuclear facilities, military facility bases, and borders, and seriously endangering t...

AI Technical Summary

Problems solved by technology

[0003] Before deceiving the intruding UAV, the real position and speed of the UAV must be confirmed, so the UAV needs to be positioned through satellite signals. However, in the process of simulating the propagation of satellite signals, the existing The simulation calculation only adopts the method of introducing coefficients to compensate for errors and interference. In addition, in the existing simulation model, only the interference of a single factor is considered, and multiple factors are not included in the error and interference analysis, which seriously affects the satellite signal. Propagation realism, for which we introduce a realistic simulation of satellite signals