Measuring and analyzing technology based on variable-time-interval Fourier transform was dealt with for vehicle accelerating noise signal.
提出了基于变时基短时傅里叶变换来分析和处理时变信号的技术。
With the accelerating of the speed, frequency-shift signal detection system established based on traditional detection method is facing great challenges in China.
随着我国铁路的提速，基于传统检测方法建立的移频信号检测系统面临着极大的考验。
With the accelerating of the speed, frequency-shift signal detection system established based on traditional detection method is facing great challenges in China.
随着我国铁路的提速，基于传统检测方法建立的移频信号检测系统面临着极大的考验。
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