频率混淆 meaning in English

frequency aliasing

Firstly introduced the basic theory and method with which the analog signal can be convert to digital form , including sampling theory and course , quantification and quantification error , coding , beside those we discussed some applications of sampling technology , the reason of frequency mixture and the method to eliminate it chapter 4 introduced analog mux - switch , for the reason of simpleness we only introduce it briefly
从第3章开始，对数据采集的基本理论进行讨论，首先介绍了模拟信号数字化处理中的基本理论、方法，包括采样过程、采样定理、量化与量化误差、编码，还讨论了几种采样技术的应用、频率混淆产生的原因及消除措施。第4章，介绍了模拟多路开关。