We should choose the suitable sweep signal and good test method to improve the precision and accuracy of frequency.
为提高扫描过程中频率的精度和准确度需要选择合适的扫描信号和检测方法。
A novel method of direct digital synthesizing frequency sweep signal is presented.
介绍了利用直接数字合成技术产生频率扫描信号的新方法。
The method of digit fast sine sweep frequency is used in nonlinear suspention system frequency feature numerical solution.
本文针对非线性悬架，研究通过数字快速正弦扫频获得其频域特性的数值解的方法。
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