广义扩频处理及其反侦察抗干扰特性分析  

Generalized Spread Spectrum Processing and Its Anti-Reconnaissance and Anti-jamming Characteristics Analysis

作　　者：石荣 SHI Rong(Science and Technology on Electronic Information Control Laboratory,Chengdu 610036,China)

机构地区：[1]电子信息控制重点实验室,四川成都610036

出　　处：《舰船电子对抗》2021年第1期16-21,44,共7页Shipboard Electronic Countermeasure

摘　　要：传统直接序列扩频信号在军事与民用通信中广泛应用,如何进一步提升其反侦察与抗干扰的性能一直是通信电子防护领域中一项重要研究内容。针对这一问题,遵从信号扩频操作的本源目的,将传统直扩信号模型扩展至广义扩频信号模型,并对广义扩频与解扩流程、广义扩频信号的反侦察抗干扰特性、以及其所具备的反欺骗能力进行了分析。并采用16APSK幅相调制宽带信号对窄带正交频分复用(OFDM)信号进行了广义扩频与解扩的仿真,验证了广义扩频信号模型的有效性与理论分析的正确性。这不仅为扩频信号设计提供了更广的自由度,而且为电子对抗中的通信电子防护提供了更多的技术手段。Traditional direct sequence spread spectrum(DSSS)signal is widely used in military and civil communication.It is always important how to further improve the anti-reconnaissance and anti-jamming performance of the signal in the field of communication electronic protection.In order to solve this problem,the traditional DSSS signal model is extended to the generalized spread spectrum signal model according to the original purpose of signal spread spectrum operation.Then its process of generalized spread and de-spread spectrum,the anti-reconnaissance and anti-jamming characteristics of generalized spread spectrum signal,its anti-deception ability are analyzed.The 16APSK amplitude-phase modulation wideband signal is used to simulate the spreading and de-spreading the narrowband orthogonal frequency-division multiplexing(OFDM)signal,which verifies the validity of the generalized spread spectrum signal model and the correctness of the theoretical analysis.It provides not only more freedom for spread spectrum signal design but also more technical approaches for communication electronic protection in electronic countermeasures.

关 键 词：直接序列扩频 广义扩频 通信电子防护 反侦察 抗干扰 

分 类 号：TN973[电子电信—信号与信息处理]