Radioengineering

Mainlobe Interference Suppression Based on Compressive Sensing and Covariance Matrix Reconstruction

When mainlobe interference exists in space, the traditional anti-interference methods have problems such as peak offset and the performance of sidelobe interference suppression reduction. To solve the above problems, this paper proposes a mainlobe interference suppression method based on compressive sensing and covariance matrix reconstruction. Firstly, an improved compressive sensing algorithm is proposed to accurately estimate the Direction Of Arrival of sources, and then the signal steering vectors and signal subspaces can be established.
Read more here:https://www.radioeng.cz/fulltexts/2024/24_01_0204_0212.pdf

interference suppression sensing matrix reconstruction Of Arrival (DOA)

Spectrum Map Construction Method Based on Dynamic Window Size Tensor Ring Low-rank Factors

Spectrum maps can model the received signal strength over a geographical region and will play a pivotal role in the intended spectrum management scheme. Traditional spectrum map construction methods cannot fully utilize the spatial-temporal correlation characteristics of observed spectrum data in a time-varying spectrum situation. The computational complexity for real-time scenes is unaffordable, and the current spectrum situation cannot be estimated promptly.
Read more here:https://www.radioeng.cz/fulltexts/2024/24_01_0163_0172.pdf

-temporal spectrum data situation construction map radiation source

A Robust Super-resolution Algorithm in a Low SNR Environment for Vital Sign Radar

We propose a robust super-resolution algorithm for vital sign radar in a low signal to noise ratio (SNR) environment. Conventional approaches, such as fast Fourier transform and super-resolution based algorithms, suffered to provide reliable results due to the limited data length and high noise level. To overcome these limitations, our proposed algorithm utilizes a low-complexity least mean square (LMS) filter and relaxation (RELAX) techniques to achieve robust performance in low SNR environments.
Read more here:https://www.radioeng.cz/fulltexts/2024/24_01_0155_0162.pdf

sign radar filter SNR complexity