Notes concerning “Goertzel”

• Notations for defining dynamical systems 2016-10-03 (updated 2016-10-06) (6 minutes)
• Cheap frequency detection 2017-06-29 (updated 2019-06-19) (50 minutes)
• The Bleep ultrasonic modem for local data communication 2018-12-10 (updated 2018-12-11) (8 minutes)
• Using the Goertzel algorithm, the Minsky algorithm, PLLs, and prefix sums for frequency detection 2019-06-16 (updated 2019-07-05) (39 minutes)