Computation signal processing system on basis of double DSP (digital signal processing) and FPGA (field programmable gate array) architectures

Abstract

The invention discloses a computation signal processing system on the basis of double DSP (digital signal processing) and FPGA (field programmable gate array) architectures. The computation signal processing system comprises a bottom-layer circuit module, a signal preprocessing module and a navigation solution module. The bottom-layer circuit module comprises an angular speed signal acquisition unit, an acceleration signal acquisition unit, a positioning signal acquisition unit, a mileage signal acquisition unit, an elevation signal acquisition unit, a temperature signal acquisition unit, a power conversion unit, a CAN (controller area network) bus communication unit and an RS422 communication unit; the navigation solution module comprises a first DSP unit and a second DSP unit. The computation signal processing system has the advantages that acquired signals are preprocessed by the signal preprocessing module, data signals preprocessed by the signal preprocessing module are subjected to navigation computation by the aid of the first DSP unit and are preprocessed under the control of the second DSP unit, communication signals can be transmitted under the control of the second DSP unit, accordingly, work of signal processing is clearly and definitely divided, the computation signal processing system is favorable for increasing the processing speed and improving the processing accuracy, and the reliability of navigation computation can be guaranteed.

Description

technical field [0001] The invention relates to signal processing technology, in particular to a computing signal processing system based on double DSP and FPGA architecture. Background technique [0002] Initially, the navigation computer used a PC as its core information processing platform, but it is rarely used now. At present, PC / 104 industrial computer components are widely used. The control bus standard of this industrial computer is specially defined for embedded control. It has small size, low power consumption, high reliability and scalability. Strong and other significant advantages have been widely used from the early 1990s to the present. [0003] The domestic integrated navigation computer information processing platform has also experienced the development process from PC to PC / 104 components. At present, PC / 104 components are widely used in various projects. However, because the PC / l04 components usually need to expand the relevant interface, and for the m...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome above-mentioned technical deficiencies, propose a kind of computing signal processing system based on double DSP and FPGA structure, solve the technical problem of the signal processing speed of navigation system in the prior art is slow, processing time is long, processing accuracy is low

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