Techniques for peak detection in a lidar system using weighted metrics and band selection

A method performed by a light detection and ranging (LIDAR) system, the method comprising:

• determining a likelihood metric for a spectrum of frequencies of a frequency domain waveform;
• modifying the likelihood metric for the spectrum of frequencies based on a parameter associated with the frequency domain waveform and a weight to generate a modified likelihood metric for the spectrum of frequencies;
• selecting a peak frequency from the spectrum of frequencies corresponding to a frequency with a highest value for the modified likelihood metric;
• and
• determining a property of a target based on the selected peak frequency.

A light detection and ranging (LIDAR) system, comprising:

• a signal processing system comprising:
• circuitry;
• and
• a memory operatively coupled to the circuitry, the memory to store instructions that, when executed by the circuitry, cause the LIDAR system to:
• determine a likelihood metric for a spectrum of frequencies of a frequency domain waveform;
• modify the likelihood metric for the spectrum of frequencies based on a parameter associated with the frequency domain waveform and a weight to generate a modified likelihood metric for the spectrum of frequencies;
• select a peak frequency from the spectrum of frequencies corresponding to a frequency with a highest value for the modified likelihood metric;
• and
• determine a property of a target based on the selected peak frequency.