“直接序列扩频”的概念、定义、翻译、参考文献-科学参考

单词	直接序列扩频
释义	直接序列扩频 Encyclopedia 工学扩展频谱技术释 direct sequence spread spectrum直接序列扩频用高速率的扩频序列在发射端扩展信号的频谱，而在接收端用相同的扩频码序列进行解扩，把展开的扩频信号还原成原来信号的扩展频谱技术。简称直扩。
随便看	directional well tool direction angle direction bias direction bias sampling method direction coefficient direction cone direction constancy direction correction of Gauss projection direction cosine direction cosine algorithm direction curve direction density Direction des Archives de France Direction des constructions Aeronautiquue direction-determining board direction field direction finder direction finding receiver direction focusing directionless directionlet transform direction logarithm direction of arrival estimation Direction of Chinese Opera direction of drama

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。