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传统的基于声光技术的信号处理模型被建模为平稳随机过程,而在扩频通信中,信号是被伪码调制的循环(周期)平稳信号。因此,扩频信号应被建模为循环平稳随机过程。基于声光信号处理技术和循环平稳随机过程理论,建立了声光循环平稳信号处理模型,并应用于扩频通信中,理论分析和仿真表明,声光循环平稳信号处理技术在扩频通信领域的信号分析中是十分有用的。
The traditional acousto-optic technology-based signal processing model is modeled as a stationary random process, whereas in spread spectrum communication the signal is a pseudo-code-modulated cyclic (periodic) stationary signal. Therefore, the spread spectrum signal should be modeled as a cyclostationary stochastic process. Based on the theory of acousto-optic signal processing and the cyclostationary stochastic process theory, a steady-state signal processing model of acousto-optic cycle is established and applied to spread spectrum communication. Theoretical analysis and simulation show that the acousto-optic cyclostationary signal processing technique is widely used in spread spectrum communication Signal analysis is very useful.