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To solve the signal separation problem in the integration system of radar and communication, a signal model based on random stepped frequency Orthogonal Frequency Division Multiplexing(OFDM) radar pulses is proposed, where the communication data is modulated on the radar pulses. The target range image can be acquired from the correlation of the echo and the reference signal, while the communication...
The combination of frequency-modulated continuous wave (FMCW) technology and synthetic aperture radar (SAR) leads to lightweight, cost-effective, and low-power dissipation imaging sensors of high resolution. For extracting the features of vibrating targets on ground in FMCW SAR, the displaced phase center antenna technique is introduced into the FMCW SAR system to suppress the ground clutter, and...
Although the micro-Doppler (m-D) effect can provide additional information for target recognition, the microwave radar cannot afford enough resolution to detect the m-D effect of small targets and long distance targets. To obtain high range resolution for the extraction of the fine m-D signatures, inverse synthetic aperture imaging LADAR (ISAIL) is used here. Because of the frequency modulation continuous...
Bistatic radar is gaining more and more interest by the radar community over the last years, and Micro-Doppler information is regarded to be the unique features of radar's targets. In this paper, a geometric of bistatic radar and vibrating target is constructed. Then in bistatic radar system, the Micro-Doppler information reduced by vibrating structure of target is analysis via Gabor-Transform. Then...
In ISAR imaging, most works have assumed the target to be a rigid body, a body without any rotating, vibrating or moving parts. The rotation of structures in a target, such as the rotor of a helicopter or the turret of a tank target, may induce frequency modulation on the returned signals and generate sidebands about the center frequency of the target's body Doppler frequency, known as the micro-Doppler...
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