The incoherently demodulated spread spectrum modem with bandwidth of 4 MHz and data rate of 32 kbit/s uses PN sequence phase-coded SAW tapped delay lines(SWTDL)with center frequency of 32 MHz as the phasecoded waveform generator and matched filter.是什么意思_The incoherently demodulated spread spectrum modem with bandwidth of 4 MHz and data rate of 32 kbit/s uses PN sequence phase-coded SAW tapped delay lines(SWTDL)with center frequency of 32 MHz as the phasecoded waveform generator and matched filter.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句