ARM And FPGA-based High-speed Data Acquisition Front-end Design

This subject mainly research the wireless high-speed data acquisition and processing of the white light communication receiver, so as to realize the high-speed communication wireless white communication systems, this paper mainly introduces the high-speed data acquisition system in the application of the wireless light communication receiver. Wireless white light communication is one of popular research direction at the moment. The high-speed data acquisition system is applied to the wireless light communication, from A hardware point of view, compared with the simple data acquisition system, need proper adjustment before A/D acquisition of analog circuit to adapt to the new special applications, and then the processing architecture according to the need to make appropriate adjustments, generally available to the FPGA, ARM, DSP and PC, etc. Wireless white light transmission rate of communication system is continuously improved, that is, the signal bandwidth transmission will be more and more high, this requires the sampling rate of high-speed data acquisition system and data real-time processing speed is very high. So in the design of high-speed FPGA is used to do the main processor to collect real-time data processing, that is to say, the FPGA mainly do is to communicate the physical processing, mainly include the FIR filter, DTTL bit synchronization, the RS decoding, etc., mainly dealing with the upper ARM and the upper machine, can according to the need to develop the upper application software.