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介绍了毫米波雷达三维成像的概念 ,对雷达成像的原理和方法进行了深入的探讨。分析了角误差信号提取的原理 ,并详细分析了毫米波雷达的数字比相的实现及角误差符号信息的提取方法。论述了如何利用和差三通道的一维距离像来获取三维图像的实现方法。给出了外场试验数据经处理后得到的距离 方位、距离 俯仰和距离 俯仰 方位三维图像。
The concept of three-dimensional imaging of millimeter-wave radar is introduced, and the principles and methods of radar imaging are discussed in depth. The principle of angular error signal extraction is analyzed, and the realization of digital phase ratio of millimeter wave radar and the extraction of angular error symbol information are analyzed in detail. This paper discusses how to use the three-way one-dimensional distance image to obtain the three-dimensional image. The three-dimensional images of distance azimuth, distance pitch and distance pitch azimuth obtained after the field test data are processed are given.