| 基于DSP的瞬变电磁数据采集系统 |
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| 引用本文： | 刘丽萍,于生宝,王忠,吕超.基于DSP的瞬变电磁数据采集系统[J].吉林大学学报(信息科学版),2006,24(2):144-147. |
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| 作者姓名： | 刘丽萍 于生宝 王忠 吕超 |
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| 作者单位： | 吉林大学,智能仪器测控技术研究所,长春,130026;吉林大学,智能仪器测控技术研究所,长春,130026;吉林大学,智能仪器测控技术研究所,长春,130026;吉林大学,智能仪器测控技术研究所,长春,130026 |
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| 基金项目： | 国家自然科学基金资助项目(40127003) |
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| 摘 要： | 针对瞬变电磁信号要求其采集系统同时具有高采样率、大动态范围的特点,设计了以DSP(D igital S ig-nal Processor)作为主控制器,CPLD(Comp lex Programm ab le Logic Device)译码控制可编程放大器实现浮点放大的等效24位数据采集系统。该系统最高采样率为200 kHz,动态范围达到144 dB。
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| 关 键 词： | 瞬变电磁 数字信号处理器 可编程逻辑器件 浮点放大 数据采集 |
| 文章编号： | 1671-5896(2006)02-0144-04 |
| 修稿时间： | 2005年3月30日 |
Transient Electromagnetic Data Acquisition System Based on DSP |
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| LIU Li-ping,YU Sheng-bao,WANG Zhong,L Chao.Transient Electromagnetic Data Acquisition System Based on DSP[J].Journal of Jilin University:Information Sci Ed,2006,24(2):144-147. |
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| Authors: | LIU Li-ping YU Sheng-bao WANG Zhong L Chao |
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| Institution: | LIU Li-ping,YU Sheng-bao,WANG Zhong,L(U) Chao |
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| Abstract: | For the characteristics of transient electromagnetic signal,a data acquisition system with high sampling rate and large dynamic range was developed.The system utilized DSP(Digital Signal Processor) chip as CPU.CPLD(Complex Programmable Logic Device)was designed as decoder to realize floating-point amplification by controlling the programmable amplifier,which made the data acquisition system has a wide dynamic range of 144 dB.The system with equivalent 24-bit resolution has the highest sampling rate of 200 kHz. |
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| Keywords: | transient electromagnetic digital signal processor(DSP) complex programmable logic device(CPLD) floating-point amplifier data acquisition |
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