Space hopping spread-spectrum modulation based on a virtual motion antenna

作者：Hong Tao; Song Maozhong^*

来源：Journal of Nanjing University of Aeronautics & Astronautics, 2011, 43(4): 481-485.

• Antenna motion
• Azimuth angles
• Cross correlations
• Fundamental component
• Harmonic components
• Multiuser communication
• Physical layers
• Secure communications
• Security transmission
• Simulation result
• Space hopping
• Spectrum spread
• Spread spectra
• Spread spectrum modulation
• Switched antenna
• Switching modes
• Virtual motion
• Wireless communications

A space hopping spread-spectrum modulation signal transmitted by a virtual motion antenna is proposed to guarantee the information security at the physical layer. A switched antenna array is employed to simulate antenna motion, and the switching mode is controlled by a spread-spectrum sequence. In this way, a spread-spectrum modulation signal is formed by the fundamental components and the harmonic components which are generated by the switching function of the antenna array. Therefore the transmit signal is associated with not only the spread-spectrum sequence but also the azimuth angle information of the receiver. Finally, the performances of spectrum spread, autocorrelation, cross-correlation, security and multi-user communication are investigated. Simulation results show that the proposed signal offers a security transmission method for wireless communication.

• 出版日期2011
• 单位南京航空航天大学