Application of Chirp-z Transform in Doppler Weather Radar

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Abstract:

Among the signal processing methods of Doppler weather radar, the FFT (Fast Fourier Transform) method is widely used. If the measurement accuracy needs to be improved, the number of FFT points also needs to be increased. As a result, the amount of computation increases exponentially. Chirp-z transform can directly refine certain spectrum in the spectrum of weather echoes. In the case that the sampling points and the amount of computation increase fewer, the measurement accuracy can be greatly advanced.

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4265-4268

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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