DC offset and low frequency noise compensation for direct-conversion receiver in pulse compression radar

Jingnan Pan, Zhiyu Wang, Shuangtian Tang, Jian Wang, Changzhi Li, Jiangtao Huangfu, Lixin Ran

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In this paper, we replace low-pass filter (LPF) in traditional direct-conversion receiver (DCR) in pulse compression radar (PCR) by pre-defined filter (PDF) to directly filter direct-current offset and low frequency noise. We also accordingly propose an algorithm for compensating the distance range resolution degradation caused by PDF's effect on low frequency components of received linear frequency modulation (LFM) signals. Based on the theoretical understanding on how the low frequency band influences the pulse compression, a set of newly deduced equations are used to calculate the compression, and the range resolution degradation can be recovered based on the priori knowledge of the employed LFM signal and filters. This method can be used in all pulse compression radars where pre-defined continuous radar signals are employed.

Original languageEnglish
Title of host publicationFinal Program and Book of Abstracts - iWAT 2011
Subtitle of host publication2011 IEEE International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials
Pages255-258
Number of pages4
DOIs
StatePublished - 2011
Event2011 International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials, iWAT 2011 - Hong Kong, China
Duration: Mar 7 2011Mar 9 2011

Publication series

NameFinal Program and Book of Abstracts - iWAT 2011: 2011 IEEE International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials

Conference

Conference2011 International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials, iWAT 2011
Country/TerritoryChina
CityHong Kong
Period03/7/1103/9/11

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