Application of Link11 Measuring Frequency Based on Hanning Window Interpolated FFT Algorithm
LI Xiaolong
CHEN Jianqing
LIU Bo
Abstract：As the key technology of the Link11 receiving system,the frequency measurement technology is very important for correction of doppler shift and the accurate acquisition of single tone frequency.At present,as the main technical means of frequen-cy measurement,using FFT for frequency domain analysis maybe lead to spill(or leakage)effect is inevitable,which may produce somewhat erroneous result.To solve this problem,a frequency-domain interpolated algorithm is presented based on Hanning win-dow.The simulation results show that this algorithm not only reduced computation,but also greatly eliminates the leakage effect and improves the precision of the measurement.
Keywords：Link11Hanning windowfrequency domain interpolation
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 37-40,80 )