| 基于FPGA的手持式数字存储示波器峰值采样技术 |
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| 引用本文： | 石明江,顾亚雄,何道清. 基于FPGA的手持式数字存储示波器峰值采样技术[J]. 仪表技术, 2009, 0(4): 6-8 |
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| 作者姓名： | 石明江 顾亚雄 何道清 |
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| 作者单位： | 西南石油大学电子信息工程学院,四川,成都,610500 |
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| 基金项目： | 西南石油大学科技基金 |
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| 摘 要： | 为了满足手持式数字示波器在较大时基下检测尖峰信号、消除混叠现象,利用FPGA内部大量逻辑单元完成峰值采样。提出峰值采样的实现方案,对其设计进行了详细描述,该系统在不采用额外硬件的基础上,实现了对采集信号的最大值与最小值进行判断,并存储在一定时间段内的峰值,具有很强的移植性和兼容性。最后给出了实现峰值采样的波形图,效果比较满意。
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| 关 键 词： | 示波器 峰值采样 FPGA |
Technology of Peak Sampling from Hand-hold Storage Oscilloscope Based on FPGA |
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| SHI Ming-jiang,GU Ya-xiong,HE Dao-qing. Technology of Peak Sampling from Hand-hold Storage Oscilloscope Based on FPGA[J]. Instrumentation Technology, 2009, 0(4): 6-8 |
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| Authors: | SHI Ming-jiang GU Ya-xiong HE Dao-qing |
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| Affiliation: | (School of Electronic information Engineering, Southwest Petroleum University, Chengdu 610500, China) |
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| Abstract: | To satisfy the requirement for detecting the peak signal and eliminating aliasing in the hand-hold digital oscilloscope at the larger time base, a method utilizing a large number of internal FPGA logic cells to complete sampling peak was presented. The design of the system was described in detail. It realized the judgment of minimum and maxi- mum value without using additional hardware, and stored the peak value in a certain period of time. The system has very strong transplant and compatibility. Finally, the realized Waveform Graph is given, which is quite satisfactory. |
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| Keywords: | FPGA |
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