Performance indications of a novel chaotic-signal FM-CW radar for multi-user applications
Performance indications of a novel chaotic-signal FM-CW radar for multi-user applications
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DOI：
10.1109/radar.2002.1174757
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
W. Machowski;P. Ratliff
中科院分区：
文献类型：
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作者：
W. Machowski;P. Ratliff
多种雷达应用的新需求需要高度专业化的信号处理算法，以显示良好的多用户能力。本文介绍了实验混沌信号雷达 (CSR) 测试台的一些测试和测量结果，其中实施了一种新颖而简单的信号处理算法，称为隐式采样平均。 CSR 具有非常大的处理增益，因此对外部噪声和干扰具有很高的抵抗力。此外，它还能够高度抵抗来自类似系统的相互干扰，因为每个系统中的随机或混沌信号发生器都会产生独特的信号。作为对理论的初步验证，标准的 77 GHz FM-CW 雷达接收器经过专门改造，以促进新颖的 CSR 方案。数字化示波器用作信号处理器，用于重建和可视化指示障碍物位置的特征双极波形（所谓的 S 曲线）。初步结果与理论非常吻合，并刺激了这种新方法的进一步发展。
Emerging requirements for several radar applications call for highly-specialised signal processing algorithms displaying good multi-user capability. This paper presents some results of tests and measurements from an experimental chaotic-signal radar (CSR) test bed where a novel, yet simple, signal-processing algorithm, called implicit sampling averaging has been implemented. The CSR has a very large processing gain and hence provides high resistance to external noise and interference. Furthermore, it is also highly resistant to mutual interference from similar systems, since the random or chaotic-signal generator in each system produces a unique signal. As an initial verification of the theory, a standard 77 GHz FM-CW radar receiver was specially adapted to facilitate the novel CSR scheme. A digitising oscilloscope was used as a signal processor for reconstructing and visualising the characteristic bipolar waveform (so-called S-curve) indicating the obstacle position. First results agree well with theory and stimulate further development of this new approach.