CAJ | 학술논문

依据超短波跳扩频电台的工作机理，采用Matlab中的Simulink分别建立了直扩、跳频、跳扩结合三种通信方式下的仿真模型以及扫频干扰模型。不仅研究了当存在扫频干扰时，改变扩频增益和跳频速度的参考值，仿真得出三种扩频方式下的误码率并进行了比较，还进一步探讨了改变扫频干扰参数(如扫频周期、扫频带宽等)情况下，计算各种通信方式下的干扰容限，比较得出跳扩结合模式抗扫频干扰性能最佳的结论。
의거초단파도확빈전태적공작궤리，채용Matlab중적Simulink분별건립료직확、도빈、도확결합삼충통신방식하적방진모형이급소빈간우모형。불부연구료당존재소빈간우시，개변확빈증익화도빈속도적삼고치，방진득출삼충확빈방식하적오마솔병진행료비교，환진일보탐토료개변소빈간우삼수(여소빈주기、소빈대관등)정황하，계산각충통신방식하적간우용한，비교득출도확결합모식항소빈간우성능최가적결론。
Based on the working mechanism of ultrashort wave DS/FH radio and with Simulink in Matlab, three simulation models of DS, FH, DS/FH communication modes and frequency sweeping jamming model are established when frequency sweeping interference exists and the reference values of spreading gain and frequency hopping speed are changed. The bit error rates resulted from the simulation under three kinds of spread spectrum are studied and compared, and under the condition that the sweeping interference parame-ters ( as the sweep cycle, sweep frequency bandwidth) are changed,the calculation of interference toler-ance in various communication modes is explored. The conclusion shows that DS/FH mode has the best anti-frequency sweeping jamming performance.