LiDAR: “dToF”, “iToF” vs. “FMCW”

There are many buzz words around Lidar nowadays. This article tries to compare a few key terms from academic perspective. Lidar can take on several different modalities, which can be classified by their dependence on incoherence or coherence of the laser source which is used. Each of these methods uses the optical path of the target reflector to effectively modulate the envelope intensity of the detected signal. Time-of-flight (pulsed) and amplitude-modulated continuous-wave (AMCW) sensors detect range by measuring temporal properties of the received light intensity. Frequency-modulated…