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| BAW气流信息检测专用信号处理技术研究 | |
| 引用本文： | 杨靖,马晋毅,方鑫,王露,帅师师,王登攀,吴志军. BAW气流信息检测专用信号处理技术研究[J]. 压电与声光, 2013, 35(6): 782-785 |
| 作者姓名： | 杨靖 马晋毅 方鑫 王露 帅师师 王登攀 吴志军 |
| 作者单位： | （1.中国电子科技集团公司第26研究所，重庆 400060；;2.中国飞行试验研究院，陕西 西安 710089） |
| 摘 要： | 研究了体声波(BAW)气流信息检测专用信号处理系统的3个关键技术。首先，改进了采用MOSFET驱动电路提供激励信号的方式，改善了抖动和拖尾现象；其次，设计了专用的匹配网络，实现了阻抗匹配、调谐和滤波；最后，设计和实现了3种测时算法，并通过实验比较了3种算法的优劣。 |
| 关 键 词： | 体声波(BAW)；匹配网络；测时算法 |
Study on the Dedicated Signal Processing Technology of BAW Airflow Information Detection |
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| YANG Jing,MA Jinyi,FANG Xing,WANG Lu,SHUAI Shishi,WANG Dengpan and WU Zhijun. Study on the Dedicated Signal Processing Technology of BAW Airflow Information Detection[J]. Piezoelectrics & Acoustooptics, 2013, 35(6): 782-785 | |
| Authors: | YANG Jing MA Jinyi FANG Xing WANG Lu SHUAI Shishi WANG Dengpan WU Zhijun |
| Abstract: | Three key technologies of the dedicated signal processing system for BAW airflow information detection have been studied in this work. First, the method of providing drive signal by using the MOSFET drive circuit has been improved, thus the dithering and streaking phenomena have been improved obviously. Second, the dedicated matching network has been designed; the impedance matching, tuning and filtering have been realized. Finally, three kinds of time measurement algorithms have been designed and carried out, and the advantages and disadvantages of these three algorithms have been compared through the experiment. |
| Keywords: | BAW matching network time measurement algorithms |
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