| 摘要 |
This disclosure is directed to digitally implemented GMSK modulation techniques. The digital GMSK modulation techniques make use of a lookup tabl e (LUT) and mapping logic to digitally generate GMSK waveforms. The mapping logic can significantly reduce the size of the LUT, and thereby reduce memor y requirements needed for effective digitally implemented GMSK modulation. A disclosed method comprises : selecting a first GMSK waveform from a LUT base d on a first subset of an input bit stream; inverting the first GMSK waveform to generate a second GMSK waveform; and selecting one of the first and second GMSK waveforms based on a second subset of the input bit stream.
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