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One-stationary bistatic ultrahigh frequency (UHF) ultrawideband (UWB) synthetic aperture radar (SAR) works in the UHF UWB signal with a large fractional bandwidth and has the wide antenna beamwidth with a large integration angle, thus it has the well ability of penetrating the foliage, high-resolution imaging and providing the increased information. Here, the onestationary bistatic UHF UWB SAR experiment...
Detection effectiveness of the airborne early warning radar is affected by its detection range as well as its detection probability. This paper presents a method for simulating and evaluating the detection effectiveness of the airborne early warning radar. Firstly, the detection model of the airborne early warning radar is designed. Secondly, based on the radar system parameter as well as the motion...
Due to the intrinsic property and unique advantage, circular synthetic aperture radar (CSAR) has lately become of the particular interest to the SAR community. The differences of the imaging properties between the monostatic and bistatic CSAR are compared and analyzed in this paper. Specifically, the detailed comparison of the wavenumber and resolution of targets in the monostatic and bistatic CSAR...
The low frequency ultra-wideband bistatic synthetic aperture radar (LF UWB BSAR) system has the well ability of penetrating the foliage, high-resolution imaging and providing the increased information, thus it is able to detect the vehicle-size targets concealed in the forest. Initial experiment of the LF UWB BSAR system has been carried out in late 2015. In this experiment, both monostatic and bistatic...
A fast time-domain approach called fast factorized backprojection (FFBP) algorithm based on the subaperture processing and local beamforming is presented for the bistatic forward-looking SAR (BFSAR) imaging. It not only precisely handles spatial-variance, serious range-azimuth coupling and complicated motion errors, but also greatly improves imaging efficiency compared with the backprojection (BP)...
In this paper, a fast factorized backprojection (FFBP) algorithm is proposed for the one-stationary bistatic spotlight circular synthetic aperture radar (OS-BSCSAR) data processing. This method represents the subimages on polar grids in the slant-range plane instead of the ground plane, which can be accurately referenced to the tracks of both transmitter and receiver. It can not only accurately accommodate...
Due to the circular trajectory and 360° integration angle of the moving radar, the one-stationary bistatic circular synthetic aperture radar (OS-BCSAR) system has the serious wavenumber coupling of the target echo data in comparison to the one-stationary bistatic linear SAR (OS-BLSAR), which affects the three-dimensional (3D) imaging performance of the OS-BCSAR. First, the OS-BCSAR imaging geometry...
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