Efficient Direct Signal Cancellation for FM-based Passive Radar

Schüpbach, Christof; Paine, Stephen; O’Hagan, Daniel

doi:10.1109/radarconf2043947.2020.9266713

Cited by 2 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is worth noting that the direct‐path and multi‐path interference cancellation constitutes a big challenge in a passive detection region. To address this issue, the adaptive beamforming (AB) technique [6], the least mean square (LMS) method [7], and the extensive cancellation algorithm (ECA) [8] are proposed in the space, time, delay‐Doppler domains, respectively, among which the ECA is a general option due to the large array requirement of the AB technique as well as the poor convergence of the LMS method.…”

Section: Introductionmentioning

confidence: 99%

Compressive detection of multiple targets in passive bistatic radar

Ma¹,

Rui²

2022

IET Radar Sonar & Navi

View full text Add to dashboard Cite

The problem of compressive detection of multiple targets in a passive bistatic radar system consisting of one illuminator of opportunity and one receiver is considered. Specifically, a measurement matrix is designed to remove the direct-path and multi-path interference and obtain the compressive observations simultaneously. Considering that the degree of sparsity, that is, the number of targets, is unknown, an orthogonal matching pursuit (OMP)-based detector, referred to as the ‖r k ‖ ∞ -based OMP detector, is proposed by analysing the distribution characteristics of the infinite norm of the residual. It is shown that the test statistic of the proposed detector leads to an order statistic, and then a closed-form expression of probability of false alarm and detection of the proposed detector is provided. Finally, numerical simulations are conducted to verify the theoretical analysis and illustrate the performance of the proposed detector relative to several benchmark detectors.

show abstract

Section: Introductionmentioning

confidence: 99%

Compressive detection of multiple targets in passive bistatic radar

Ma¹,

Rui²

2022

IET Radar Sonar & Navi

View full text Add to dashboard Cite

show abstract

“…Passive radar or passive coherent location systems have been a popular topic all over the world. A passive radar system does not have a dedicated transmitter, but it uses broadcast transmitters as illuminators of opportunity to locate and track the targets [1][2][3][4][5][6][7][8][9]. In the past 20 years, the signals used in the development of passive radar systems have been expanded rapidly.…”

Section: Introductionmentioning

confidence: 99%

“…In the past 20 years, the signals used in the development of passive radar systems have been expanded rapidly. The signals could be analog signals such as frequency-modulated broadcasting [1,2], or digital signals such as digital video broadcasting [3,4], digital audio broadcasting [5,6], WLAN signals [7], LTE signals [8], and China Mobile Multimedia Broadcasting [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Signal fusion research in passive radar based on polarization diversity technology

Zhu

Cao

2022

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

Polarization diversity technology is an effective method to improve the detection performance of passive radar systems, but the related papers mainly conduct research on the polarization diversity in interference suppression, and there are few studies focusing on the polarization characteristics of the target itself. The work in this paper is divided into two parts. The first part is going to investigate the potential benefits of signal fusion in target polarization-scattering characteristic. The analysis results show that the cross-polarized component of the target scattered echo is not always weaker than the co-polarized component, and the polarization amplitude ratio value is mostly concentrated near 1. This indicates that polarization signal fusion will likely improve target detection performance. The other part introduces a polarization signal fusion method based on the non-coherent integration (P-NCI), but this method is susceptible to the influence of the difference in the signal-to-noise ratio (SNR) of the signal of each polarization channel, resulting in a reduction in the SNR of the fusion signal. The polarization signal fusion method based on adaptive weighting (AW-PSF) can effectively improve the robustness of signal fusion. The experimental results show that AW-PSF has better detection performance compared with single-polarization channel and P-NCI.

show abstract

Efficient Direct Signal Cancellation for FM-based Passive Radar

Cited by 2 publications

References 14 publications

Compressive detection of multiple targets in passive bistatic radar

Compressive detection of multiple targets in passive bistatic radar

Signal fusion research in passive radar based on polarization diversity technology

Contact Info

Product

Resources

About