提出并研究了一种新型的具有天然抗干扰能力的、高精度混沌激光雷达。此激光雷达基于光反馈半导体激光器的连续波混沌激光的相关特性探测目标距离。数值分析了混沌状态和相关时间对混沌激光δ线型相关曲线特性的影响,表明高维、频谱平滑的混沌激光是理想的雷达光信号。实验验证了基于光反馈半导体激光器的混沌激光雷达测距及其高抗干扰能力,并获得了与测量距离无关且优于9 cm的测量分辨率。 A new type of high precision chaotic laser radar with natural anti-jamming capability is proposed and studied. This laser radar detects the target distance based on the correlation characteristics of continuous-wave chaotic lasers of optical feedback semiconductor lasers. The influence of chaos state and related time on the δ-curve of chaotic laser is numerically analyzed. It is shown that the chaotic laser with high dimension and smooth spectrum is the ideal radar light signal. The chaotic laser radar ranging based on optical feedback semiconductor lasers and its high anti-jamming capability are experimentally verified, and the measurement resolution that is independent of the measurement distance and superior to 9 cm is obtained.