Novel pulse-sequences design enables multi-user collision-avoidance vehicular radar

2007 International Waveform Diversity and Design Conference Pub Date : 2007-06-04 DOI:10.1109/WDDC.2007.4339400

W. Machowski, G. S. Koutsogiannis, P. Ratliff

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引用次数: 3

Abstract

A new, so-called chaotic pulse-sequence radar (CPSR) has been developed and implemented for short-range vehicular radar, designed to warn the driver of close-by overtaking vehicles (so-called 'blind-spot' warning). It employs a novel design of randomized signal generation and processing which overcomes problems of long-range returns from large reflecting structures and high-levels of interference from both similar and dissimilar radars in the same frequency channel/band. The new technique involves generation of long, non-deterministic pulse trains, composed of a large number of successive, relatively-short pulse-sequences having specially designed correlation properties, separated by random gaps. The statistically-defined unpredictability of such composite pulse trains required in a multi-user scenario is derived from a very large number of pulse-sequences processed in the radar receiver to obtain near-vehicle range estimates. Field tests of a prototype radar confirm good and reliable performance of the technique, including its interference rejection capabilities.

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新颖的脉冲序列设计可实现多用户防撞车载雷达

一种新的，所谓的混沌脉冲序列雷达(CPSR)已经被开发并用于短程车辆雷达，旨在警告司机附近的超车车辆(所谓的“盲点”警告)。它采用了一种新颖的随机信号产生和处理设计，克服了大反射结构的远程回波问题和同一频率信道/频带内相似和不同雷达的高水平干扰问题。这项新技术涉及产生长而不确定的脉冲序列，该脉冲序列由大量连续的、相对较短的脉冲序列组成，这些脉冲序列具有特殊设计的相关特性，由随机间隙分隔。在多用户场景中，这种复合脉冲序列的统计定义的不可预测性来自于雷达接收机中处理的大量脉冲序列，以获得近车辆距离估计。原型雷达的现场测试证实了该技术的良好可靠性能，包括其抗干扰能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2007 International Waveform Diversity and Design Conference

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