CAJ | 학술논문

利用激光反射法改进了激光监听器在音质等方面的监听效果。采用硅光电池探测激光器反射的光斑，使用遥控微调电机调节光斑对准，由声卡采集探测信号，电路采用巴特沃斯带通滤波器，还利用Matlab中的audio weighting filter进行信号处理和滤波。实验结果表明监听信号准确、清晰。
이용격광반사법개진료격광감은기재음질등방면적감은효과。채용규광전지탐측격광기반사적광반，사용요공미조전궤조절광반대준，유성잡채집탐측신호，전로채용파특옥사대통려파기，환이용Matlab중적audio weighting filter진행신호처리화려파。실험결과표명감은신호준학、청석。
Reflection method was used to improve the quality of laser monitoring .The reflected laser spots were detected by silicon photocell and tracked by remote controlled fine motor .The signal was collected by sound card .Butterworth bandpass filter was used in the circuit and Matlab audio weighting filter was adopted for signal processing and filtering .The results indicated that this method could monitor clearly and accurately .