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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Radar Detection of Plasma-Covered Reentry Object Based on Crossed Two- Component LFM Signal
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Radar Detection of Plasma-Covered Reentry Object Based on Crossed Two- Component LFM Signal

机译：基于交叉两分量LFM信号的等离子覆盖再入目标雷达检测

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摘要

A precise and efficient radar detection method based on crossed two-component LFM signal is proposed to deal with the detection problem of plasma-covered object. The method contains two segments: 1) design of transmitted signal, and 2) detection of object information (position and velocity) from the ambiguity function of the echo signal. For the first segment, the transmitted signal is designed to be a 2-component LFM signal with each component crossing with the other one in the time-frequency domain. The crossing design of the two components eliminates the disturbance term in solving the ambiguity function, guaranteeing the stability of detection. In the second segment, a mixed detection technique is proposed, which contains prior-information-based component classification and optimal parameters solution, maintaining both the accuracy and efficiency in detection. By the proposed method, both the efficiency in computation and accuracy in detection are achieved. The simulation results illustrate the validity of the method.
机译：提出了一种基于交叉两分量LFM信号的精确高效的雷达检测方法，以解决等离子体覆盖物体的检测问题。该方法包括两个部分：1）发射信号的设计，以及2）根据回波信号的歧义函数检测物体信息（位置和速度）。对于第一段，传输的信号被设计为2分量LFM信号，每个分量在时频域中彼此交叉。两部分的交叉设计消除了解决歧义函数的干扰项，保证了检测的稳定性。在第二部分中，提出了一种混合检测技术，该技术包含基于先验信息的组件分类和最佳参数解，同时保持检测的准确性和效率。通过提出的方法，实现了计算效率和检测精度。仿真结果说明了该方法的有效性。

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