非同步ADC采样的校正方法研究

Research on error correction methods of asynchronous sampling

相对于同步采样,非同步采样能够有效的降低电路板成本。本文对非同步采样的两种误差校正方法——插值采样和V型采样进行了介绍。阐述了插值采样与V型采样的误差产生机理。理论分析与仿真验证结果表明,非同步采样经纠正后的误差能够符合标准要求,适用在电力系统测控采样。

A synchronous sampling can reduce the cost of PCB effectively compared with synchronous sampling.Two kinds of error correction methods of asynchronous sampling-interpolation sampling and V sampling are introduced in this paper. This paper expounds the error mechanism of interpolation sampling and V sampling, theoretical analysis and simulation verification shows the error can conform to the requirements of the standard, asynchronous sampling is suitable in power system control equipments sampling.