发明授权
- 专利标题: Chaotic signal enabled low probability intercept communication
- 专利标题(中): 混沌信号启用低概率拦截通信
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申请号: US11646176申请日: 2006-12-26
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公开(公告)号: US07795983B1公开(公告)日: 2010-09-14
- 发明人: Michael J. Delaney , Jose M. Cruz-Albrecht , Joseph F. Jensen , Keh-Chung Wang
- 申请人: Michael J. Delaney , Jose M. Cruz-Albrecht , Joseph F. Jensen , Keh-Chung Wang
- 申请人地址: US CA Malibu
- 专利权人: HRL Laboratories, LLC
- 当前专利权人: HRL Laboratories, LLC
- 当前专利权人地址: US CA Malibu
- 代理机构: Christie, Parker, Hale
- 主分类号: H03B29/00
- IPC分类号: H03B29/00
摘要:
A circuit for generating chaotic signals implemented using heterojunction bipolar transistors (HBTs) and utilized in low probability intercept communications. The HBT chaotic circuit generates truly random analog signals in the GHz range that are non-repeating and deterministic and may not be replicated by preloading a predetermined sequence. A fully differential autonomous chaotic circuit outputs two pairs of chaotic signals to be used in a communication system. As it is impossible to generate identical chaotic signals at the transmitter and receiver sites, the receiver itself sends the chaotic signal to be used for encoding to the transmitter. The receiver includes a chaotic signal generator and digitizes, upconverts, and transmits the generated chaotic signal to the transmitter. The transmitter uses the received chaotic signal to code data to be transmitted. The receiver decodes the transmitted data that is encoded by the chaotic signal to retrieve the transmitted data.