基于Zynq的麦克风阵列同步高速采集系统设计

doi:10.16180/j.cnki.issn1007-7820.2019.07.006

Abstract

Abstract:

High-speed simultaneous sampling processing is the basis of a microphone array system. Aiming at the low acquisition rate, high cost, large size and poor portability of the traditional audio acquisition system, the paper designed a microphone array synchronous high-speed acquisition system based on the Xilinx Zynq-7000 series scalable platform. Using FPGA+ARM software and hardware cooperative working mode, data intercommunication was realized through AXI bus. The system was controlled by the analog audio transmission interface protocol and system of the FPGA.The Linux operating system was transplanted on the ARM with the data being transmitted and was saved by the Gigabit Ethernet port and the high-speed SD card.The Xilinx-Vivado kit was used to design the manufacturing system. The experimental results showed that the system supported up to 16 channels of synchronous acquisition with a sampling rate of 96 kHz. The overall weight was 1.67 kg, and the battery life was about 5 hours, which filled the blank of 1000-level small audio array.

Key words: Zynq-7000, high speed, acquisition, array signal, AXI bus, Linux, data store

CLC Number:

TN919.5

JIN Hengkang,ZHANG Yiwen. Research on Design of Synchronous High Speed Acquisition System of Microphone Array Based on ZYNQ[J].Electronic Science and Technology, 2019, 32(7): 28-32.

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Research on Design of Synchronous High Speed Acquisition System of Microphone Array Based on ZYNQ

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