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http://dx.doi.org/10.5515/KJKIEES.2012.23.7.815

The Relation of Time Resolution and Radial Velocity Accuracy of a CW Doppler Radar  

Ryu, Chung-Ho (Defense Systems Test Center, Agency for Defense Development)
Jang, Yong-Sik (Defense Systems Test Center, Agency for Defense Development)
Choi, Ik-Hwan (Defense Systems Test Center, Agency for Defense Development)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.23, no.7, 2012 , pp. 815-821 More about this Journal
Abstract
A CW Doppler radar can measure radial velocity of an object. It detects a Doppler frequency shift that is proportioned to radial velocity of a moving object. To detect a Doppler frequency shift, FFT(Fast Fourier Transform) is conducted. In this process, the time domain received signal is transformed to a frequency domain. A number of FFT affects not only the time resolution but also signal to noise ratio of received signal. So finally it is related with a radial velocity accuracy. Therefore in this paper, it is described the relation of time resolution and the radial velocity accuracy.
Keywords
CW Doppler Radar; Radial Velocity Accuracy; Time Resolution; Warhead Event;
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