HF passive bistatic radar based on DRM illuminators

Wan, Xianrong; Zhang, Zhao; Delei, Zhang; Qihong, Shao

doi:10.1109/cie-radar.2011.6159499

Cited by 7 publications

(7 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A method of polarization notching of the direct penetrating signals was proposed in [17]. The method is based on the fact that depolarization occurs when the signal is reflected from the AO and cross-polarization components appear.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of a direct penetrating signal compensator in a distributed reception channel of a surveillance radar

Khudov

Yarosh

Droban

et al. 2021

EEJET

View full text Add to dashboard Cite

General structure of a compensator of a direct penetrating signal in the diversed reception channel was developed. It is advisable to use the antenna and the receiver of the auxiliary diverted reception channel as an auxiliary antenna and an auxiliary channel. To be able to suppress the penetrating signal in the band of the receiving device of the surveillance radar, distance between the antennas should be up to 6 m. In general, the compensator of the penetrating signals should contain an adder in which the signals received by the main channel are added with the signals received by the auxiliary channel and sent through the amplifier with a corresponding complex transmission coefficient. The direct penetration signal compensator features the obligatory condition of adjusting the value of the complex transmission coefficient of the auxiliary channel signal amplifier. The direct penetration signal compensator is digital and uses the direct method of forming weighting coefficients without the use of feedback. To reduce the time of formation of weighting coefficients when using direct methods of calculation of the correlation matrix, the technology of parallel computational processes was used. The quality of operation of the direct penetrating signal suppression system in the diverted reception channel was evaluated. It was established that without the use of suppression of direct penetrating signals, their powerful response at the output of the matched filter mask weak echo signals. When using a direct penetrating signal in the main channel of the compensator, its response at the output of the matched filter is significantly reduced. This makes it possible to observe weak echoes against the background of a strong penetrating signal. The use of the developed direct penetrating signal compensator provides suppression of the direct penetrating signal from 57 dB to 70 dB

show abstract

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of a direct penetrating signal compensator in a distributed reception channel of a surveillance radar

Khudov

Yarosh

Droban

et al. 2021

EEJET

View full text Add to dashboard Cite

show abstract

“…Before the 2D-CCF, the reference signal has to be preprocessed by pilots equalization and blanking CPs to remove pilot peaks and guard interval peak respectively [25]. The modified ambiguity function for DRM signal in mode B is shown as Fig.7 (c).…”

Section: ) Peaks Caused By Fixed Pilotsmentioning

confidence: 99%

“…China has begun the medium wave DRM broadcasting; meanwhile, the development of short wave DRM broadcast is relatively slow, still staying in the beginning stage. But many DRM transmitters in Europe broadcast toward China [23]; thanks to the short wave DRM broadcast transmitted from abroad and reflected by the ionosphere, HFPBR can be put into practice in China and preliminary investigation has been started [24]- [25]. In this paper, we report the first experimental development of DRM-based hybrid sky-surface wave HFPBR in China, using the newly-developed all-digital active/passive integrated HF surface wave radar system of Wuhan University.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of HF Passive Bistatic Radar Via Hybrid Sky-Surface Wave Mode

Zhao

Wan

Delei

et al. 2013

IEEE Trans. Antennas Propagat.

View full text Add to dashboard Cite

This paper presents a description of recent research and development in HF passive bistatic radar (HFPBR) based on DRM digital AM broadcasting at Wuhan University, China. First, preliminary evaluation of its detection performance with special focus on the hybrid sky-surface wave propagation mode is introduced. Then, DRM broadcasting signal analysis as a radar waveform and associated signal processing techniques are described, consisting of ambiguity function analysis, reference signal extraction, multipath clutter rejection, and target localization. Finally, the experimental system and experimental data analysis are provided. Initial results from field experiments show that DRM-based HFPBR with hybrid sky-surface wave is a promising system for wide area moving target detection and ocean remote sensing.

show abstract

“…However, relatively recently, there have been efforts dedicated to developing PCL techniques and systems in the HF regime [see, e.g., Ringer and Frazer , ; Thomas et al , ; Fabrizio et al , ; Xianrong et al , ]. The new long wavelength (> 10 m) radio broadcasting format, Digital Radio Mondiale, which is recently being adopted by radio stations in many countries, has been the focus of much of this effort [see, e.g., Thomas et al , ; Xianrong et al , ].…”

Section: Introductionmentioning

confidence: 99%

Passive all‐sky imaging radar in the HF regime with WWV and the first station of the Long Wavelength Array

et al. 2013

View full text Add to dashboard Cite

[1] We present a new passive, bistatic high-frequency (HF) radar system consisting of the transmitters for the radio station WWV and the dipole antenna array that comprises the first station of the Long Wavelength Array (LWA) or "LWA1." We demonstrate that these two existing facilities, which are operated for separate purposes, can be used together as a unique HF radar imager, capable of monitoring the entire visible sky. In this paper, we describe in detail the techniques used to develop all-sky radar capability at 10, 15, and 20 MHz. We show that this radar system can be a useful tool for probing ionospheric structure and its effect on over-the-horizon (OTH) geolocation. The LWA1+WWV radar system appears to be especially adept at detecting and characterizing structures associated with sporadic-E. In addition, we also demonstrate how this system may be used for long-distance, OTH mapping of terrain/ocean HF reflectivity. Finally, we discuss the potential improvements in the utility of these applications as more LWA stations are added.

show abstract

HF passive bistatic radar based on DRM illuminators

Cited by 7 publications

References 18 publications

Development of a direct penetrating signal compensator in a distributed reception channel of a surveillance radar

Development of a direct penetrating signal compensator in a distributed reception channel of a surveillance radar

An Experimental Study of HF Passive Bistatic Radar Via Hybrid Sky-Surface Wave Mode

Passive all‐sky imaging radar in the HF regime with WWV and the first station of the Long Wavelength Array

Contact Info

Product

Resources

About