Open AccessDoppler compensation method for the complementary phase‐coded signal
Author(s) -
Li Wenji,
Ren Lixiang,
Mao Erke,
Fan Huayu
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0379
Subject(s) - autocorrelation , computer science , radar , algorithm , signal (programming language) , distortion (music) , doppler effect , compensation (psychology) , ambiguity function , sequence (biology) , signal processing , electronic engineering , telecommunications , mathematics , physics , engineering , statistics , psychology , amplifier , bandwidth (computing) , astronomy , waveform , psychoanalysis , programming language , biology , genetics
The Doppler sensitivity issue is an urgent problem to be solved for the phase‐coded radar although it can give the promise of improved range resolution and resistance against various kinds of distortion. Due to the ideal autocorrelation and cross‐correlation properties, the complementary sequence is utilised in high‐frequency surface wave radar and MIMO radar. However, the Doppler frequency shift affects the autocorrelation property of the complementary sequence. This study aims to solve this problem. Based on the signal model and mathematical derivation, a new algorithm is proposed and the simulation results indicate the effectiveness of this method. This study also puts forward the signal processing diagram and the method to obtain the new code.