Wideband digital beamforming when using LFM waveform

This paper presents a new method on wideband digital beamforming and jammer nulling using linear frequency modulation (LFM) waveforms with stretch processing and subarrays technique. The approach eliminates quantization style errors of conventional analog time delay units method and improves beamfor...

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Main Authors: YunHe Cao, YaBin Zhang, ShengHua Wang, ShouHong Zhang
Format: Conference Proceeding
Language:English
Subjects:
Adaptive arrays
Antenna arrays
Array signal processing
Bandwidth
Costs
Delay effects
Filters
Narrowband
Phased arrays
Wideband
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YaBin Zhang
ShengHua Wang
ShouHong Zhang
description This paper presents a new method on wideband digital beamforming and jammer nulling using linear frequency modulation (LFM) waveforms with stretch processing and subarrays technique. The approach eliminates quantization style errors of conventional analog time delay units method and improves beamforming performance by using full digital processing. While subarrays technique reduces the cost, complexity and computation. Moreover, we can realize wideband jammer nulling by changing digital phase-weight within each subarray when there existing wideband interferences.
doi_str_mv 10.1109/MAPE.2005.1618156
format conference_proceeding
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Adaptive arrays
Antenna arrays
Array signal processing
Bandwidth
Costs
Delay effects
Filters
Narrowband
Phased arrays
Wideband
title Wideband digital beamforming when using LFM waveform
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