Abstract
A novel hybrid system radar coincidence imaging (HSRCI) is proposed in this paper. Radar coincidence imaging (RCI), as a novel kind of radar imaging system, has attracted widespread attention. RCI has the characteristics of high resolution and anti-interference. In addition, the RCI system can image not depend on the range-Doppler (RD) principle and simplify the receiver complexity. So it is considered as a good complement to synthetic aperture radar (SAR). However, the RCI system also has a lot of problems. Since RCI requires the transmit signal has the characteristics of time-space independence. Its pattern has anisotropy, so that the energy can not be gathered in the main lobe direction. This phenomenon will greatly affect the detection range. We propose a HSRCI system, its transmit signal consists of time-space independent signal and a fixed power signal together. HSRCI not only has the characteristics of RCI system. Simultaneously, it can also solve the problem of detection range. Simulation results demonstrate the effect of the HSRCI system. The HSRCI system has a positive effect on solving the problems of RCI.
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