Iteration and derivation of errors

GPS cannot be installed in the receiving array, resulting in errors when relying on the GPS of the ship platform for detection and verification. Knowing the target distance, combined with the cable length and target angle, the true angle of the target can be obtained by solving the triangle; However, due to the existence of certain errors in both distance measurement and angle measurement, errors are divided into systematic errors and random errors. Systematic errors are fixed errors with certain deviation values, and the errors in angle measurement and distance measurement are coupled together, making it difficult to separate the two. Currently, there are no papers on this topic. This article uses the transfer of error formulas and combines simulation to provide detection errors, which has good engineering guidance experience.