排序方式: 共有2条查询结果,搜索用时 0 毫秒
1
1.
高精度虚拟谐波失真度分析仪的设计 总被引:2,自引:0,他引:2
设计并实现了高精度虚拟谐波失真度分析仪.重点阐述了频率跟踪和均值滤波技术以及它们在LabVIEW中的实现方法.与同类仪器比较.该高精度虚拟谐波失真度分析仪具有测量精度高、成本低、操作方便等特点。 相似文献
2.
How to choose modulation frequency in the extra-high frequency geodimeter is directly related to a lot key matters such as distance sensitivity of instruments and degree of technological difficulty of modulation system. This paper analyzes and proves that choice range of modulation frequency can be from 800 MHz up to extra-high frequency with the 相似文献
1