precision analog中文什么意思

例句与用法

1. as to the first question, we resolve it by the way of use a high-speed and high-precision analog-data converter ti finish the signal collection, and the pci local bus as the pc bus
   第四章则主要针对高速、高精度的中频射频脉冲采样，设计出了采用高速、高精度的商用ad变换器进行数据采集，pci局部总线作为微机接口总线的数据采集系统方案。
2. at present, the typic harmful current detection methods are the fast fourier transform algorithm in frequency domain and methods based on the instantaneous reactive power theory, these methods all require some transform and quick, real-time calculating, so high precision analog multipliers or high speed dsp chip with fast a / d are needed, this results in complex circuit and high cost ， which have restricted the development of apf
   目前畸变电流检测常用的方法有频域法的fft和基于瞬时无功理论的畸变电流检测法。这些方法均有一定的变换，需要快速、实时运算，因此必须使用高速的数字微处理器和高性能a/d转换器，这必将大大提高系统成本，使得电路结构复杂，在一定程度上限制了有源滤波器的发展。