Research on the Interference Calculation Method for Digital Terrestrial Television in Single Frequency Network Coverage
In previous literature,there was not a set of strict mathematical and physical determination formulas for the coverage interference of single frequency network(SFN),so that the research direction deviation and conceptual misunderstanding occurred in the industry.To eliminate the confusion caused by different opinions,the paper gives the determination theorem of SFN coverage interference,the relevant determination rules and various calculation cases.To verify the consistency between theory and practice,ATDI software is used to simulate the example,proving the correctness of the method and conclusion.When SFN is planned,designed and debugged,an implementation path to reduce network interference can be found by using the method described in the text.
Single frequency networkWanted field strengthUnwanted field strengthDelay
万方数据
维普
