Sound source positioning device and method based on track moving double microphone arrays
A microphone array and dual microphone technology, applied in positioning, measuring devices, instruments, etc., can solve the problems of ineffective measurement of sound source distance, limited suppression effect, low positioning accuracy, etc., to reduce the number of microphones, real-time performance Good, high-precision results
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[0085] Example 1
[0086] Combine figure 1 The positioning device of this embodiment includes a power supply module, two microphone arrays, a control analysis module, a NI9215A data acquisition card, and a host computer. The power supply module supplies power to each microphone, DC motor, and photoelectric encoder. The microphone array is composed of a fixed microphone and a mobile microphone. The fixed microphone is at the center of the vertical circular track, the mobile microphone is on the circular track, and the circular track is fixed on the base by a bracket. All microphones use the MPA201 microphone produced by Beijing Fame Acoustic Technology Co., Ltd. The microphone is connected to the data acquisition card through a data cable with BNC interface, and the data acquisition card is transmitted to the host computer through a USB cable. There is a DC motor equipped with a photoelectric encoder ZSP3806 at the center and the base of the circular track. The DC motor uses JRS-3...
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