Parameter measurement of LFM signal with FRI sampling and nuclear norm denoising

Z Wei, N Fu, S Jiang, X Li, L Qiao - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Measurement of linear frequency modulation (LFM) signal is significant for radar,
communication, and electronic reconnaissance fields. An LFM signal is a wideband signal …

Detection of LFM radar signals and chirp rate estimation based on time-frequency rate distribution

E Swiercz, D Janczak, K Konopko - Sensors, 2021 - mdpi.com
Linear frequency-modulated (LFM) signals are the most significant example of waveform
used in low probability of intercept (LPI) radars, synthetic aperture radars and modern …

Improving the accuracy of estimates of the pulse sequence period using the methodology of complete sufficient statistics

K Zhuchkov, M Vasilchenko, A Zagrebneva… - Scientific Reports, 2022 - nature.com
This paper is devoted to the synthesis of new signal processing algorithms based on the
methodology of complete sufficient statistics and the possibility of using the Lehmann …

Multipath interference removal in receivers of linear frequency modulated radar pulses

K Abratkiewicz, PJ Samczyński… - IEEE Sensors …, 2021 - ieeexplore.ieee.org
The article describes algorithms for the retrieval of linear frequency modulated (LFM) pulses
from a received signal which is corrupted by noise and multipath reflections from ground and …

Numerical-analytical study of performance of mixed-order statistics algorithm for joint estimation of DOA, range and backscatter coefficient in a MIMO structure

AM Molaei, P Del Hougne, V Fusco… - 2022 23rd …, 2022 - ieeexplore.ieee.org
Unlike passive detection in the far-field where the array steering vector depends only on
direction-of-arrival (DOA), in the near-field (NF) since the shape of the spherical wavefront …

Digital instantaneous frequency measurement with wide bandwidth for real-valued waveforms using multiple sub-Nyquist channels

S Liu, L Wang, W Lin, Y Cui, C Wang… - Measurement Science …, 2022 - iopscience.iop.org
In order to break through the bandwidth limitation of digital instantaneous frequency
measurement for a real-valued waveform, we developed a frequency estimator with a high …

A block method using the chirp rate estimation for NLFM radar pulse reconstruction

K Abratkiewicz, P Samczyński - Sensors, 2019 - mdpi.com
This paper presents a novel approach to fast and accurate non-linear pulse signal
reconstruction dedicated for electromagnetic sensors and their applications such as …

Target Doppler rate estimation based on the complex phase of STFT in passive forward scattering radar

K Abratkiewicz, P Krysik, Z Gajo, P Samczyński - Sensors, 2019 - mdpi.com
This article presents a novel approach to the estimation of motion parameters of objects in
passive forward scattering radars (PFSR). In such systems, most frequency modulated …

On the instantaneous angular jerk estimation in the time-frequency domain

K Abratkiewicz - IEEE Signal Processing Letters, 2021 - ieeexplore.ieee.org
In this letter, a novel angular jerk estimator (AJE) in the time-frequency (TF) domain is
proposed. For this purpose, the properties of the short-time Fourier transform (STFT) are …

Time-chirp distribution for detection and estimation of LPI radar signals

E Swiercz, K Konopko… - 2020 21st International …, 2020 - ieeexplore.ieee.org
One of the primary challenges for an Electronic Support (ES) receiver is interception and
analysis of low probability of intercept (LPI) radar signals, which for example are linear …