This paper propose one method of constructing direct spreading sequences based on one -dimensional chaotic maps with infinite collapse.

提出了一种基于一维无限折叠混沌映射的直接扩谱序列构造方法。

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A communicator USES BPSK direct - sequence (DS) spreading modulation and BPSK data modulation.

一个传达者使用BPSK指导序列(DS)传播调制和BPSK数据调制。

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The reason is that over time, large numbers of people have done a direct comparison between my method and the owner's manual method, and the news of their success is spreading rapidly.

原因是长期以来，很多人使用我的方法和手册上的做过比较，成功的案例广泛传播。

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Enthusiasts think direct democracy is spreading because the traditional type is ailing.

ECONOMIST: If you thought Germany did not do referendums, think again

"It's the most direct evidence of farming spreading by migration of peoples that you could hope to find, " said lead author Pontus Skoglund, an Uppsala University graduate student.

WSJ: Migrations Spurred Agriculture Spread, Studies Indicate

Health officials believe people are contracting the virus through direct contact with infected fowl and say there has been no evidence so far that the virus is spreading easily between people.

NPR: China Kills Market Birds As Flu Found In Pigeons