negative frequency

this paper presents a new method for short-time frequency estimation with negative frequency contribution eliminated.

提出了一种实正弦信号的短时频率估计新方法。

The precisions of ratio rectifying method is very rough when it was applied to the case of low frequency component, of which the reason was that the contribution from negative frequency not taken into the model.

采用比值法校正低频成分的参数精度比较低，其原因是模型中忽略了负频率成分的贡献。

simultaneously, analytical transformation structured by the hilbert transformation is used to counteract the negative-frequency.

利用Hilbert变换构造解析变换，进而滤除信号中的负频率成分；

We are everyday now in a blundering magnetic field, very much negative frequency is affecting us.

我们现在每天都在一个浮躁的磁场中，很多负面频率在影响我们。

New signal processing method with negative frequency contribution for Coriolis mass flowmeter

计及负频率影响的科里奥利质量流量计信号处理方法

logic '0' represented by a negative frequency deviation (of at least 115 khz, nominally 160 khz).

逻辑‘0‘由负向频率偏移（至少是115KHz，通常是160KHz）表示。