Secure FMCW LiDAR Ranging With an Electro-Optical Synthesizer at 5000 Measurements/s

IF 2.2 Q3 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

IEEE Solid-State Circuits Letters Pub Date : 2025-03-28 DOI:10.1109/LSSC.2025.3555948

Marziyeh Rezaei;Liban Hussein;Alana Dee;Shucheng Fang;Qixuan Lin;Mo Li;Sajjad Moazeni

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引用次数: 0

Abstract

Frequency-modulated continuous wave (FMCW) LiDAR offers a significant advantage over FMCW RADAR due to its superior lateral resolution, achieving more than a

$1000\times $

improvement. However, laser nonlinearities require the use of electro-optical phase-locked loops (EO PLLs), and conventional EO PLL-based FMCW LiDAR systems are susceptible to spoofing attacks. To address this vulnerability, this letter introduces an electro-optical (EO) synthesizer designed to generate FMCW signals with randomly varying chirp rates per frame. The synthesizer incorporates an on-chip SRAM-based physically unclonable function (PUF) fabricated in 180-nm RF CMOS, which generates a device-specific random key to enhance the security of FMCW LiDAR against spoofing attacks. The synthesizer supports four programmable chirp rates: from 8.5 to 12 GHz/ms with a chirp period of

$600~\mu $

s, and from 12.75 to 18 GHz/ms with a chirp period of

$200~\mu $

s, resulting in a

$5\times $

increase in generated cloud points compared to existing long-range EO PLL-based FMCW LiDAR systems.

查看原文本刊更多论文

利用每秒 5000 次测量的电光合成器实现安全的 FMCW 激光雷达测距

调频连续波（FMCW）激光雷达由于其优越的横向分辨率，比FMCW雷达具有显著的优势，实现了超过1000倍的改进。然而，激光非线性要求使用电光锁相环（EO pll），而传统的基于EO pll的FMCW激光雷达系统容易受到欺骗攻击。为了解决这一漏洞，本文介绍了一种电光（EO）合成器，该合成器旨在生成每帧随机变化啁啾率的FMCW信号。该合成器集成了一个基于sram的片上物理不可克隆功能（PUF），该功能采用180纳米RF CMOS制造，可生成特定于器件的随机密钥，以增强FMCW激光雷达的安全性，防止欺骗攻击。该合成器支持四种可编程的啁啾速率：从8.5到12 GHz/ms，啁啾周期为600~ $ $ $ $，从12.75到18 GHz/ms，啁啾周期为200~ $ $ $ $，与现有的基于远距离EO锁相环的FMCW激光雷达系统相比，产生的云点增加了5倍。

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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来源期刊

IEEE Solid-State Circuits Letters Engineering-Electrical and Electronic Engineering

CiteScore

4.30

自引率

3.70%

发文量