|Table of Contents|

Doppler Tolerance Expansion of Short-range PRC-CW Radar

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2009年03期
Page:
361-365
Research Field:
Publishing date:

Info

Title:
Doppler Tolerance Expansion of Short-range PRC-CW Radar
Author(s):
ZHAO ZhaoSHI Xiang-quanWANG Zhi-hua
School of Electronic Engineering and Optoelectonic Technology,NUST,Nanjing 210094,China
Keywords:
radars Doppler measurement tolerance expansion pseudo random code pulse compression interpolated fast Fourier transform targets
PACS:
TN958.94
DOI:
-
Abstract:
A novel method to expand the Doppler tolerance is presented to suppress the Doppler sensitivity of the pseudo random code continuous wave(PRC-CW) radar signal.It utilizes a composite signal which is a cascade of single frequency pulse and pseudo random phase-coded signal.The Doppler frequencies of targets are firstly estimated based on interpolated fast Fourier transform method and the Doppler compensated signal is constructed.The effect of Doppler frequency on the correlation detection can be efficiently suppressed by processing the compensated signal with pulse compression-fast Fourier transform,which makes the radar suitable for short-range high-speed target detection.The Doppler frequency estimation error is approaching Cramer-Rao lower bounds.

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Last Update: 2012-11-19