用于鲁棒目标检测的宽带波形设计
Wideband Waveform Design for Robust Target Detection
摘要：
未来的雷达系统预计将使用高带宽的波形，其主要优点是提高了距离分辨率。本文提出了一种多输入单输出系统的宽带波形设计方法。上下文是具有部分未知参数的单个对象的最佳检测。波形是鲁棒的，在这个意义上，对于一个单一的传输，检测能力是保持在时间延迟和时间缩放（多普勒）参数的间隔。通过基展开的方式推导、逼近并将解决方案框架公式化为优化。在检测概率和虚警概率方面，数值评估显示了所提出的方法与线性调频信号和高斯脉冲相比的效率。
英文摘要：
Future radar systems are expected to use waveforms of a high bandwidth, where the main advantage is an improved range resolution. In this paper, a technique to design robust wideband waveforms for a Multiple-Input-Single-Output system is developed. The context is optimal detection of a single object with partially unknown parameters. The waveforms are robust in the sense that, for a single transmission, detection capability is maintained over an interval of time-delay and time-scaling (Doppler) parameters. A solution framework is derived, approximated, and formulated as an optimization by means of basis expansion. In terms of probabilities of detection and false alarm, numerical evaluation shows the efficiency of the proposed method when compared with a Linear Frequency Modulated signal and a Gaussian pulse.
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