【摘要】 本文提出用换模方式得到新的序列,以提高通信的保密性,并分析新序列的相关特性和功率谱特性.这种新序列可用于数字微波、光纤、卫星、移动通信中作为扰码器或加密器.本文还给出了两种换模发生器和两种用于数字微波通信及数字移动通信的扰码器和加密器.更多还原

【Abstract】 This paper presents a study of a new sequences obtained from the changed model sequences, so as to improve the secrecy in communications. The related performances and power spectrum of the changed model sequences are discussed. The new sequences can be used as the scramblers and descramblers in digital microwave communications as well as optical fiber, satellite and mobile communications. Finally, two kinds of the changed model generators and of the scramblers and descramblers illustrated by the examples in digital microwave communication and digital mobile communication.更多还原