一种导航雷达信号采集的实现方法

摘要

雷达数据采集在雷达数据分析和处理过程中起着至关重要的作用，如何高效、经济、高质量的进行数据采集是第一步。通过导航雷达 JMA2254的实际信号分析，选择具有14位采样精度、65MSPS 采样速率的 AD9248采样芯片，很好地完成数据的采集，将模拟雷达信号转换为数字信号。通过实际电路板的制作与测试，完成了雷达信号的 AD 转换，并通过与实际雷达波形的对比以及图像的对比，检验采样的效果。%Radar data acquisition plays a vital role in radar data analysis and processing .How to achieve efficient ,eco-nomical ,high-quality data acquisition is the first step .By navigation radar JMA2254 actual signal analysis ,a 14 sampling ac-curacy ,65MSPS sampling rate sampling chip AD9248 is chosen to complete data collection ,and transform analog radar sig-nal into a digital signal .By making and testing the actual circuit board ,the radar signal AD conversion is completed .By com-parison and contrast with the actual waveform radar images ,the effect of test samples is tested .