Communication System Electromagnetic Compatibility Predictive Analysis Technology,

With the rapid development of wireless communication technology, the limited space of electromagnetic environment is filled with the high density signals, and the space of electromagnetic environment is very complicated. How to analyze the intra-system EMC problems are paid much more attention.Some works on the intra-system EMC are done as follows in this paper:Firstly, from three factors of EMI, analyzing the mechanism of inter-system EMI in detail, including the features of interfering source, sensitive equipment and coupled channel; Establishing the corresponding mathematic model combining with the standard of EMC. Analyzing the inter-system EMC by the method of dividing the total process into two steps to reduce the computations. Considering the power distributed in the entire band, the program uses approximate power spectrum to simulate the actual power spectrum in integral calculation. In detailed prediction, the program give several different parameters to assess the compatibilities of the systems.Secondly, based on the theoretic derivation, developed a software by C# on platform of Microsoft Visual Studio.NET 2005, and it can be easily extended, easily maintained and has a good human-computer interaction. This software includes: inter-system prediction program and calculation tools which we use frequently in EMC problems. This software is only suitable for microwave band. After finishing the software design, the help document of software was written, then package of installation was done.At last, part of the software features that have done as a demo , we conclude some measures to reduce the interference by the calculative results, and it can play a guiding role for designing the inter-system electromagnetic compatibility.