Tethered satellite antenna arrays for passive radar systems

Dickinson, D.F.; Straka, Wolfgang

doi:10.1109/aero.1990.109077

Cited by 1 publication

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“…Due to its advantages in dealing with the "four major threats" of radar, external radiation source (also known as illuminator of opportunity) radar has been revived since the 1970s and 1980s, such as using ground, satellite TV or radio signals [1][2][3][4][5][6], using global satellite navigation, etc. The research on positioning signals [7][8][9][10][11][12] as passive radar external radiation sources is developing rapidly.…”

Section: Introductionmentioning

confidence: 99%

Spatial resolution analysis of passive bistatic radar using low-orbit navigation augmented signals

Wang

et al. 2022

J. Phys.: Conf. Ser.

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Aiming at the problem that the traditional monostatic ambiguity function is inconvenient to analyze the spatial resolution of the passive bistatic radar, this paper proposes a method to analyze it in a given airspace by using the spatial distribution of the ambiguity function. This method converts the time-delay Doppler distribution of the traditional ambiguity function into the spatial distribution near the reference target, which makes it more suitable for the intuitive analysis of the spatial resolution capability of the passive bistatic radar. This new method is used to analyze the target resolution capability in the designated airspace when Navigation augmented signals transmitted by the low-orbit communication satellite is used as the illuminator of opportunity. The distribution of the ambiguity function is transformed from a pushpin shape under the monostatic time delay-Doppler shift to a flat “sandwich biscuit” shape in space. The shape is closely related to the geometric relationship of the bistatic radar. Through the spatial distribution of the ambiguity function, the target resolution in a given airspace can be directly observed, which is convenient for analyzing the spatial resolution capability of the signal under different spatial geometric relationships. This also provides convenience for the optimal selection of the location of the illuminator of opportunity and receiving station.

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Section: Introductionmentioning

confidence: 99%

Spatial resolution analysis of passive bistatic radar using low-orbit navigation augmented signals

Wang

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

Tethered satellite antenna arrays for passive radar systems

Cited by 1 publication

References 1 publication

Spatial resolution analysis of passive bistatic radar using low-orbit navigation augmented signals

Spatial resolution analysis of passive bistatic radar using low-orbit navigation augmented signals

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