超宽带雷达与IVC协同系统中SIC迭代检测系统的研究

H. Takahara, K. Ohno, M. Itami
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引用次数: 3

摘要

本文讨论了基于UWB(超宽带)雷达的车载通信系统。由于该IVC系统具有码分多址(CDMA)能力,因此采用直接序列- UWB信号。然而,由于每辆车的信号功率不同,存在着近距离问题,这成为信号通信特性和检测精度下降的原因。为了提高信号的检测率和误码率(BER)性能,本文提出了一种采用连续干扰抵消(SIC)的迭代检测系统。除SIC检测到的期望信号外的信号从原始接收信号中减去。结果,性能得到了提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A study on the iterative detection system using the SIC in the cooperative UWB radar and IVC system
This paper discusses the IVC (Inter Vehicle Communication) system using the UWB (Ultra Wideband) radar. DSUWB (Direct Sequence - UWB) signal is used for this IVC system because it has CDMA (Code Division Multiple Access) Capability. However, there is the near-far problem due to difference of signal power from each vehicles, it becomes the cause of degradation of communication characteristics and detection accuracy of the signal. In this paper, we propose the iterative detection system using the SIC (Successive Interference Cancellation) to improve detection rate of the signal and the bit error rate (BER) performance. The signals except the desired signal detected by the SIC is subtracted from the original received signal. As the result, the performance was improved.
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