论文部分内容阅读
声表面波色散延迟线可用于脉冲压缩雷达,解决雷达作用距离和距离分辨力之间的矛盾,还可用于脉冲多卜勒雷达,测量多卜勒频移,因此,在雷达信号处理中受到重视.声表面波色散延迟线充分体现了声表面波器件设计灵活的优越性,因此都乐于研制.声表面波色散延迟线的性能主要由叉指换能器决定.分析叉指换能器的方法通常有δ模型、等效电路模型和连续集模型,其中连续集模型简单易行.有人运用连续集模型,提出了用声脉冲与叉指换能器相互作用的
SAW dispersion delay line can be used for pulse compression radar to solve the conflict between the radar range and range resolution, but also for pulsed Doppler radar, measuring Doppler shift, and therefore, received much attention in radar signal processing SAW dispersion delay line fully embodies the advantages of SAW device design flexibility, and are happy to develop.SOA dispersion delay line performance is mainly determined by interdigital transducer.Analyzing interdigital transducer method Usually δ model, equivalent circuit model and continuous set model, in which the continuous set model is simple and easy. Some people use the continuous set model, put forward the use of acoustic pulses and interdigital transducer interaction