发明名称 Phase mapping for QPSK/QBL-MSK waveform
摘要 A method of pulse shaping a spread signal of serially formatted in-phase (I) and quadrature (Q) waveforms, where each waveform includes a predetermined number of chips per symbol, includes (a) examining adjacent chips of the I and Q waveforms at a symbol boundary; and (b) determining that one of the I or Q waveforms, includes two adjacent first and second chips separated by a single chip period, where the first chip belongs to a previous symbol and the second chip belongs to a present symbol. If the chips are of the same value, the method extends a peak value between the first and second chips, and zeros the other waveform of the I or Q waveform during the extended duration. If the chips are of opposite values, then the method zeroes one of the chips and inserts a chip into the other waveform.
申请公布号 US7822100(B2) 申请公布日期 2010.10.26
申请号 US20050314762 申请日期 2005.12.21
申请人 ITT MANUFACTURING ENTERPRISES, INC. 发明人 RASMUSSEN DONALD JOHN;MULHOLLAND DELBERT TODD
分类号 H04B1/00 主分类号 H04B1/00
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