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Waveforms Design and Field Trials
Sensors ( IF 3.9 ) Pub Date : 2021-05-06 , DOI: 10.3390/s21093216
Gaspare Galati , Gabriele Pavan , Kubilay Savci , Christoph Wasserzier

Performance of continuous emission noise radar systems are affected by the sidelobes of the output of the matched filter, with significant effects on detection and dynamic range. Hence, the sidelobe level has to be controlled by a careful design of the transmitted waveform and of the transmit/receive parts of the radar. In this context, the average transmitted power has to be optimized by choosing waveforms with a peak-to-average power ratio as close to the unity as possible. However, after coherent demodulation and acquisition of the received signal and of the reference signal at the transmitting antenna port, the goodness (low sidelobes) of the output from the matched filter can be considerably reduced by the deleterious effects due to the radar hardware, including the analog-to-digital converter (ADC). This paper aims to solve the above problems from both the theoretical and the practical viewpoint and recommends the use of tailored waveforms for mitigating the dynamic range issues. The new findings are corroborated by the results from two noise radar demonstrators operating in Germany (rural environment) and in Turkey (coast and sea environment) and the related lessons learnt.

中文翻译:

波形设计和现场试验

连续发射噪声雷达系统的性能受匹配滤波器输出旁瓣的影响,这对检测和动态范围有重大影响。因此,必须通过精心设计发射波形和雷达发射/接收部分来控制旁瓣电平。在这种情况下,必须通过选择峰均功率比尽可能接近单位的波形来优化平均发射功率。但是,在相干解调并在发射天线端口处获取接收信号和参考信号之后,由于雷达硬件(包括模数转换器(ADC)。本文旨在从理论和实践角度解决上述问题,并建议使用定制波形来缓解动态范围问题。来自两个在德国(农村环境)和土耳其(沿海和海洋环境)运行的噪声雷达示威者的结果以及相关的经验教训证实了新的发现。
更新日期:2021-05-06
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