| 摘要 |
PURPOSE:To provide the fading simulator operated at an equivalent complex base band. CONSTITUTION:The fading simulator is provided with complex amplitude tables 411, 421 storing complex amplitude data of at least one period from element waves subject to Doppler shift caused by movement of a mobile station in a space to which plural element waves without any propagation delay time difference, read initial address and read address generating circuits 412, 421 whose read speed is variable to read complex amplitude data from the complex amplitude tables 411, 421 and a complex multiplier 7 applying complex multiplication between complex amplitude data 6a, 6b read from the complex amplitude tables 411, 421 and input complex data 3a, 3b sampled from input complex signals 1a, 1b with a sampler 2 to obtain fading simulator outputs 8a, 8b. |
