The availability of low orbit satellite spread-spectrumcommunications is impacted by the complicated radio environment in China and Southeast Asia.
由于中国国内和东南亚地区电磁环境复杂,影响了低轨卫星扩频通信的可用性。
2
Frequency hopping is a spread-spectrumcommunications technique, meaning that the total available spectrum is split up into smaller sections so as to be better utilised.
频跳是传播光谱通信技术,意思被分离入更小的部分以便更好运用总可利用的光谱。
3
Direct sequence spreadspectrumcommunications is one of the most typical spreadspectrum modes.