未来的无线通信系统大到覆盖全球的卫星网，小到个人域网。

The future wireless communication systems will be ranged from global satellite systems to personal area networks.

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因此，面对无线通信系统中的多种制式，现有的无线电台无法满足未来个人通信的目标。

Therefore, facing the multi-mode in the wireless communication system, existing radio stations can not meet the need of personal communication object.

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扩频技术在数字蜂窝移动通信系统、卫星移动通信、室内无线通信和未来的个人通信中被广泛采用。

Spread Spectrum technique is widely used in digital cell-phone mobile communication system, satellite mobile communication, inside wireless communication and future personal communication.

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