文章摘要
引用本文:赵振涌,袁寰.高精度A/D转换技术在惯导系统中的应用研究[J].导航定位与授时,2014,(002):70-73 本文二维码信息
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高精度A/D转换技术在惯导系统中的应用研究
Research on High Accuracy Analog-to-digital Convert for Inertial Navigation Systems
  
DOI:
中文关键词:  高精度A/D转换  零位  采样率
English Keywords:High accuracy analog-to-digital convert  Zero  Sampling rate
基金项目:
作者单位
赵振涌 北京自动化控制设备研究所 
袁寰 北京自动化控制设备研究所 
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中文摘要:
      针对惯导系统对模数转换电路的使用要求,明确了制约A/D转换电路在惯导系统中应用的瓶颈是零位稳定性,分析了A/D转换电路零位的影响因素,提出了解决方法。并设计出一款A/D转换电路,该电路的测试结果表明解决方法有效,可将零位提高2个数量级,与传统V/F转换电路相当。证明采用A/D转换芯片的模数转换电路能够满足惯导系统的精度要求,同时相比V/F、I/F具有高采样率和高分辨率的优势,技术指标可以满足高精度加速度测量系统等实际工程需求。
English Summary:
      This article found that the zero stability is the bottleneck of application of analog-to-digital convert circuits on inertial navigation systems based on application requirements, analyzed the influencing factors of the zero stability, then proposed solutions.Designed an analog-to-digital convert circuit whose test results prove the solutions,the zero turns out two orders of magnitude higher than old designs,and is as good as traditional V/F convert circuits.This result shows that analog-to-digital convert circuits which use analog-to-digital converters can satisfy the accuracy requirements of inertial navigation systems,and it has advantages than V/F、I/F convert circuits on high sampling rate and high resolution,technical indicators can fulfil systems which need high accuracy acceleration measurements.
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