| 摘要 |
PROBLEM TO BE SOLVED: To detect a modulation system of each burst without the need for using a broadcast burst. SOLUTION: The modulation signal analyzer detects temporal positions of received bursts 3 to 6 by utilizing that a common region C is included in a preamble part of each burst. Then the analyzer discriminates a type of a burst detected before by utilizing that an assigned pattern of symbol data in each subcarrier 8 differs in regions A, B, C. The analyzer acquires each of the symbol data configuring a data part of the discriminated burst to calculate modulation accuracy (EVM: error vector magnitude). COPYRIGHT: (C)2006,JPO&NCIPI
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