Results 61 to 70 of about 619,289 (184)

Intra-pulse Modulation Recognition of LPI Radar Signals Based on Improved MobileNet [PDF]

Radioengineering
Addressing the challenge of feature extraction for Low Probability of Intercept (LPI) radar signals under low signal-to-noise ratio conditions, this study introduces a new method for intra-pulse modulation recognition of LPI radar signals based on an ...
J. Wu, X. Wang, Y. Zhou, B. Chen, W. Li, L. Zhang   +5 more
doaj  

A NOVEL LPI METHOD OF RADAR'S ENERGY CONTROL

Progress In Electromagnetics Research C, 2012
A novel radar energy control strategy based on an improved Interacting Multiple Model Particle Filter (IMMPF) tracking method is presented in this paper. Firstly, the IMMPF tracking method is improved by increasing the weight of the particle which is close to the system state and updating the model probability of every particle.
Zhenkai Zhang, Jian-Jiang Zhou
openaire   +1 more source

A Two‐Stage Genetic Algorithm for Joint Optimization of PAPR and PSLR for Precise Signal Reconstruction in OFDM‐ISAC Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper presents a two‐stage genetic algorithm based waveform design framework for OFDM integrated sensing and communication (ISAC) systems. In Stage‐1, a multi‐objective genetic algorithm jointly optimizes the peak‐to‐average power ratio (PAPR) and peak sidelobe level ratio (PSLR) under forward error correction and reserved subcarrier constraints ...
Haidong Xu, Zhanya Li, Xiaoxiao Zhuo, Guyue Zhu, Chenfeng Xu, Liang Tang, Yu Zhao   +6 more
wiley   +1 more source

MIMO noise radar - matched filters and coarrays [PDF]

, 2008
Copyright © 2008 IEEEThe noise radar concept can be extended to an array of K transmit antenna and M receive antenna. When independent noise sources are transmitted from each antenna the approach may be viewed as a special case of MIMO radar and matched ...
Capria, A., Amerigo Capria, Gray, D., Douglas A. Gray   +3 more
core   +1 more source

Sig2text: A Vision‐Language Model for Non‐Cooperative Radar Signal Parsing

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
We propose Sig2text, a symbolic radar signal recognition and parameter estimation framework that treats waveform analysis as a parsing task using a vision‐language model. By integrating time‐frequency representations with a context‐free grammar and transformer‐based architectures, Sig2text accurately identifies complex modulation types and estimates ...
Jun‐Yu Yuan, Si‐Yuan Chen, Shu‐Jian Yao, Rong Zhang, Han Cong Feng, Kai‐li Jiang, Yu‐Xin Shang, Yu‐Xin Zhao, Bin Tang   +8 more
wiley   +1 more source

Automatic Recognition of General LPI Radar Waveform Using SSD and Supplementary Classifier

, 2020
© 1991-2012 IEEE. For low probability of intercept (LPI) radars, frequency-modulated and phase-modulated continuous waveforms are widely used because of their low peak power compared to that of pulse waves (PW).
Kong SH, Hoang LM, Kim M
core   +2 more sources

WFH: A Wideband Frequency Hopping‐Based Anti‐Jamming Navigation Signal Structure

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
Given the limitations of existing satellite navigation signals in antijamming performance amid growing environmental jamming, this paper proposes a navigation signal structure based on wideband frequency hopping (WFH) modulation to enhance both antijamming capability and measurement accuracy. It further introduces the nonstationary effective carrier‐to‐
Chenyang Wang, Yihai Liao, Sicong Liu, Jianghong Shi, Ao Peng   +4 more
wiley   +1 more source

Multiple‐input multiple‐output with frequency diverse array radar transmit beamforming design for low‐probability‐of‐intercept in cluttered environments

IET Signal Processing, 2022
Multiple‐input multiple‐output with frequency diverse array (FDA‐MIMO) radar has drawn great attention due to providing the range‐angle beampattern via designing the transmit beamforming matrix.
Panke Jiang, Pengcheng Gong, Yuntao Wu, Xiong Deng   +3 more
doaj   +1 more source

Detection of Unknown Radar Pulses Using Spiking Neural Networks

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This article proposes to use spiking neural networks (SNNs) to detect multiple pulses in observation windows from a superheterodyne receiver. The method is described from encoding to postprocessing. New metrics are introduced to compare the proposed detection method to the energy detector (ED), to a detection based on difference Of boxes (DOB) filters ...
Alexia Tachet, Fabrice Comblet, Ali Khenchaf   +2 more
wiley   +1 more source

Digital signal generation for LFM–LPI radars

Electronics Letters, 2003
A new algorithm to generate chirp signals with low computational complexity and very low memory is presented. This algorithm, based on a feedback and time-variant system, can improve the chirp signal generation typically used in LPI radar with lineal FM.
J.E. González, J.M. Pardo, A. Asensio, M. Burgos   +3 more
openaire   +1 more source