That seems like a winning strategy: an array of ultrasonic transducers could both detect and range the bug, and then you just play back a loud impulse spike with the same phase delays as you heard. No moving parts, no misses, no calculations. If the spike is short enough, you physically can't damage anybody's ears.
Maybe you only deafen them, so they die of old age without mating.
I once priced out an array of half-inch-sized ultrasonic transducers. Seems like they were astonishingly cheap... like under $.50 each? Plus $.50 microcontrollers and a drive transistor for the spike. Maybe an FPGA running parallel convolutions?
Maybe you only deafen them, so they die of old age without mating.
I once priced out an array of half-inch-sized ultrasonic transducers. Seems like they were astonishingly cheap... like under $.50 each? Plus $.50 microcontrollers and a drive transistor for the spike. Maybe an FPGA running parallel convolutions?