一种基于SIMULINK的新颖卫星抗截获系统仿真

SIMULINK是一个进行动态系统建模和仿真分析的软件包,其最大特点是可在仿真过程中改变系统参数,实时观察系统行为的变化。利用SIMULINK平台对一种融入了频谱感知和频谱分割技术的卫星抗截获通信系统进行仿真,该通信系统通过频谱感知技术获取频谱空隙的分布情况,然后利用频谱分割技术将信号频谱进行分散化,插入并隐蔽在正常通信频谱之中实现隐蔽通信。通过SIMULINK仿真分析,可得到从调制、分割、到聚合和解调等各个环节的的卫星通信系统的眼图和频谱图及其相关的频域技术数据,可用于指导硬件设计。

Simulation of a Novel Satellite Anti-interception System Based on SIMULINK

The SIMULINK is a software package for dynamic system modeling and simulation analysis, its most important feature is that the system parameters can be changed during simulation to observe in real time the change of systems behavior. The simulation of anti-interception satellite communication system integrating with spectrum sensing and spectral splicing technologies is carried out by using the SIMULINK platform. The communication system obtains the distribution of spectral gap by spectrum sensing technology, and then uses the spectral splicing technology to disperse the signal spectrum which is inserted and hid in normal spectrum to achieve the covert communication. By the SIMULINK simulation analysis, the eye pattern, spectrum graph and related frequency domain technical data of satellite communication system can be obtained from modulation, division to combination and demodulation. The data can be used for guidance of hardware design.