| 摘要 |
A data modem is compatible with multi-pulse linear predictive speech codecs. The modem comprises a modulator and a demodulator, wherein the modulator (fig 2) utilises a synthesiser of a multi-pulse linear predictive codec and the demodulator (fig 3) utilises the analyser of a linear predictive codec. The modem is then compatible with systems such as TETRA, ACELP or Full Rate GSM. |
