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| PCM遥传信号数字解码方法的设计与实现 | |
| 引用本文： | 武向萍,李安宗,吴晓杰,魏斌.PCM遥传信号数字解码方法的设计与实现[J].石油仪器,2004,18(5):19-20,23. |
| 作者姓名： | 武向萍 李安宗 吴晓杰 魏斌 |
| 作者单位： | 1. 中国石油集团测井有限公司技术中心,陕西,西安 2. 西安石油勘探仪器总厂,陕西,西安 3. 辽河油田测井公司,辽宁,盘锦 |
| 摘 要： | 通过用软件对PCM编码数据进行解码的方法，设计了根据实际波形实时设置鉴别电平和数据判别宽度的抗干扰措施，并在ERA2000成像测井地面系统中实现了此方法。采用VxWorks的信号量同步机制，实现了多任务之间的同步和通讯，保证了系统采集的可靠性和实时性。 |
| 关 键 词： | PCM遥传信号 解码 数字处理 高速采集 |
| 文章编号： | 1004-9134(2004)05-0019-02 |
Design and realization of software decode for PCM telemetry signals |
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| Wu Xiangping,Li Anzong,Wu Xiaojie and Wei Bin.Design and realization of software decode for PCM telemetry signals[J].Petroleum Instruments,2004,18(5):19-20,23. | |
| Authors: | Wu Xiangping Li Anzong Wu Xiaojie and Wei Bin |
| Abstract: | The means of decoding PCM signal is given in this paper. The PCM telemetry signal was converted by high speed A/D and decoded by software. Measure of identifying voltage level and width of signal can be designed real timely on the basis of PCM signals. This method has already been realized in ERA2000 imaging logging system. VxWorks semaphores are highly optimized and they provide the fastest intertask communication mechanism in VxWorks. Semaphores are the primary means for addressing the requirements of both mutual exclusion and task synchronization. Therefore, the system runs stably and normally. |
| Keywords: | PCM telemetry signal decode digital process high speed acquisition |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |