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Alternative TitleMethod of quickly estimating and correcting carrier frequency offset for FSK (Frequency Shift Keying) signal
段茂强; 杨志家; 王剑; 董策; 谢闯
Rights Holder中国科学院沈阳自动化研究所
Patent Agent沈阳科苑专利商标代理有限公司 21002


Other Abstract

The invention relates to a method of quickly estimating and correcting carrier frequency offset for a FSK (Frequency Shift Keying) signal. According to the method, through inputting two ways of low and medium-frequency I/Q signals generated via a radio frequency module, correlation operation and filter processing are carried out on the two ways of signals and signals generated by a DDS, mean operation is then carried out, corresponding querying is carried out in a pre-stored mean-value-frequency offset lookup table, a frequency offset estimation value is obtained, the value is then fed back to the front DDS for frequency offset elimination and thus, a frequency offset correction process is completed. The frequency offset estimation speed is fast, and the overall performance of a receiver can be improved after frequency offset correction is carried out.

PCT Attributes
Application Date2014-11-25
Date Available2018-11-27
Application NumberCN201410686680.7
Open (Notice) NumberCN105610745A
Contribution Rank1
Document Type专利
Recommended Citation
GB/T 7714
段茂强,杨志家,王剑,等. 一种用于FSK信号的快速载波频偏估计及校正方法[P]. 2016-05-25.
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File name: CN201410686680.7.pdf
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