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Elon Musk’s objections aside, lidar is powering self-driving vehicle development. The spinning lasers are the keystone sensor in most autonomous driving projects. Prices are falling, and with so-called solid state solutions from companies like Innoviz, Google’s quirky dome top lidar sirens are a thing of the past.
And still, not all lidar is created equal. In fact, with news last week that Audi is tapping Silicon Valley startup Aeva to supply lidar sensors for its self-driving ambitions, there are now two competing lidar technologies coming to market: Those that use an amplitude modulation (AM) approach to sensing, and a newer class of lidar that relies on frequency modulation (FM).