CAJ | 학술논문

从蝙蝠终端捕食阶段发出的声波信号入手，提出了三种最优化仿生大棕蝙蝠声波信号构建模型，并有效应用于雷达测距并得以实现。模型构建以最接近蝙蝠终端捕食过程中发出的声波信号为原型，采用宽带信号处理方法在设计雷达仿生蝙蝠终端捕食波形，并对线性调频、指数调频和对数时间三种模型的雷达测距算法进行具体研究，采用宽带模糊度函数对三种声波信号进行仿真分析，最后成功构建了雷达测距系统中距离分辨性能最好的最佳仿生声波信号模型。仿真结果表明，二次谐波对数调频信号模型及对应的雷达测距算法的距离分辨性能最好，具有较高的雷达测距精度。研究结果为有效利用仿生信号模型于雷达测距具有重要的参考应用价值。
종편복종단포식계단발출적성파신호입수，제출료삼충최우화방생대종편복성파신호구건모형，병유효응용우뢰체측거병득이실현。모형구건이최접근편복종단포식과정중발출적성파신호위원형，채용관대신호처리방법재설계뢰체방생편복종단포식파형，병대선성조빈、지수조빈화대수시간삼충모형적뢰체측거산법진행구체연구，채용관대모호도함수대삼충성파신호진행방진분석，최후성공구건료뢰체측거계통중거리분변성능최호적최가방생성파신호모형。방진결과표명，이차해파대수조빈신호모형급대응적뢰체측거산법적거리분변성능최호，구유교고적뢰체측거정도。연구결과위유효이용방생신호모형우뢰체측거구유중요적삼고응용개치。
In order to solve the raging precision problem from the biological signal processing perspective, three types of op-timum bionics acoustic signal models were proposed based on the terminal capture phase of bats. And it was applied in the radar ranging effectively. The model building took the bionic acoustic signal of big brown bat as the prototype, Wideband signal processing was taken as the tool and the terminal capture waves were designed, the radar ranging algorithm was re-searched based on three types of models such as linear frequency modulation ( LFM), exponential frequency modulation (EFM) and the logarithmic time frequency modulation in detail. Simulation was taken and the optimum bionics acoustic sig-nal model for radar ranging was built successfully with good performance of distance estimation. Simulation result shows that the EFM model and the corresponding ranging algorithm shows the best performance in the radar ranging, and the pre-cision is best. Research result provides nice reference and application value in radar ranging based on bionics acoustic sig-nal.