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It was proposed that the project of satellite overlay communication with direct sequence spectrum spreading (DSSS).
提出一种利用DS扩频技术实现卫星重叠通信的方案。
Radio has been cramming ever more information into the transmission, using techniques such as spreading it across the spectrum, dividing it up into portions and using "smart" antennae.
通过使用诸如跨频段传播，分割成块和“智能”天线技术使传输中的无线电波填充更多的信息。
The second part is the third chapter, which explains the PN code adopted by spreading spectrum in this system and the power testing algorithm.
第二部分为第三章主要从软件算法实现方面进行阐述，该部分包括系统扩频码选取及不同长度扩频码性能比较分析和功率检测算法。
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