Chinese Academy of Sciences

Haihong Feng

Minyan Huang

Feng Chen

Feng Hong

Dingyun Li

A field-programmable gate array (FPGA)-based real-time processing system applied to underwater acoustic positioning and realizing reconfigurability and multiple output is provided. The system includes a multi-interface control and command parsing module for automatically completing sample information transmission and command parsing; a finite-state machine (FSM) of sample management for calculating related data and completing splitting, flipping and writing of a sample; a parallel correlation processor group for completing, in parallel, high-performance processing operations regarding a plurality of targets; and a multiple output data former for simultaneously realizing data formation of a multiple output result and outputting a flag bit signal to the outside. A FPGA-based real-time processing control method is also provided that is applied to underwater acoustic positioning and realizing reconfigurability and multiple output. The system and the method are used, such that during a whole realization process, under multiple array elements and multiple targets, high-speed parallel correlation processing is realized, thereby solving problems in terms of real-time performance, universality and anti-noise performance, and effectively realizing high-performance correlation.

FPGA-based real-time processing system and method applied to underwater acoustic positioning and realizing reconfigurability and multiple output

A FPGA-based intelligent storage control system is provided that includes a FLASH main controller; a FLASH command former and an address generator with a memory function, for generating level signal of cross clock domain and automatically avoiding out-of-bounds writing. A configuration data former provides for driving and controlling a configuration writing in function by a writing configuration drive signal. An automatic reading configurator provides automatic configuration reading by internal drive signal to drive. A main data and auxiliary data former provides continuous storage of main data according to ping-pong operation for unequal width RAM operation. A FLASH data reading buffer and a multi-interface external drive module are also present. The system is applicable to an unmanned underwater vehicle and underwater acoustic equipment. The system and the application thereof, the problems of existing storage control systems during underwater working are solved, with the characteristics of reliability, simplicity or intelligence.

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Shanghai, China

Haihong Feng