Newtonalized orthogonal matching pursuit for the linear frequency‐modulated pulse frequency agile radar

Autor: Honghui Guo, Ning Zhang, Chunyi Song, Jiang Zhu, Zhiwei Xu
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: IET Radar, Sonar & Navigation, Vol 15, Iss 12, Pp 1670-1686 (2021)
ISSN: 1751-8784
1751-8792
Popis: The linear frequency‐modulated frequency agile radar (FAR) can be used for synthesizing high‐range‐resolution profiles (HRRP), and also has excellent electronic counter‐countermeasures performance. Similar to the Newtonalized orthogonal matching pursuit (NOMP) for line spectral estimation problem, the NOMP for the FAR radar termed as NOMP‐FAR is designed to process each coarse range bin to extract the HRRP and velocities of multiple targets, including the guide for determining the oversampling factor and the stopping criterion. In addition, it is shown that the target will cause false alarm in the nearby coarse range bins, and a post‐processing algorithm is proposed to suppress the ghost targets. Numerical simulations are conducted to demonstrate the effectiveness of NOMP‐FAR.
Databáze: OpenAIRE