Ubiquitous radar is a new radar system that provides continuous and uninterrupted multifunction capability within a coverage volume.Continuous coverage from close-in"pop-up"targets in clutter to long-range t...Ubiquitous radar is a new radar system that provides continuous and uninterrupted multifunction capability within a coverage volume.Continuous coverage from close-in"pop-up"targets in clutter to long-range targets impacts selection of waveform parameters.The coherent processing interval(CPI)must be long enough to achieve a certain signal-to-noise ratio(SNR)that ensures the efficiency of detection.The condition of detection in the case of low SNR is analyzed,and three different cases that would occur during integration are discussed and a method to determine the CPI is presented.The simulation results show that targets detection with SNR as low as-26 dB in the experimental system can possibly determine the CPI.展开更多
文摘Ubiquitous radar is a new radar system that provides continuous and uninterrupted multifunction capability within a coverage volume.Continuous coverage from close-in"pop-up"targets in clutter to long-range targets impacts selection of waveform parameters.The coherent processing interval(CPI)must be long enough to achieve a certain signal-to-noise ratio(SNR)that ensures the efficiency of detection.The condition of detection in the case of low SNR is analyzed,and three different cases that would occur during integration are discussed and a method to determine the CPI is presented.The simulation results show that targets detection with SNR as low as-26 dB in the experimental system can possibly determine the CPI.
