GNSS (global navigation satellite system) receiver board card on basis of ZYNQ architectures

Abstract

The invention provides a GNSS (global navigation satellite system) receiver board card on the basis of ZYNQ architectures. The GNSS receiver board card comprises a ZYNQ processor and an intermediate-frequency data input end. The ZYNQ7 processor is configured with a peripheral controller, a dual-core processor and an FPGA (field programmable gate array) processor, and a QSPI (queued serial peripheral interface) FLASH memory, an SDRAM (synchronous dynamic random access memory) and a UART (universal asynchronous receiver and transmitter) are plugged in the peripheral controller; a core of the dual-core processor is used for running a GNSS receiver operation system, another core of the dual-core processor is used for carrying out positioning resolving, and the FPGA processor is provided with a GNSS baseband data processing unit; the GNSS baseband data processing unit is used for processing intermediate-frequency data inputted into the FPGA processor, so that original data applied to positioning resolving a dual-core processor end can be obtained; one of the cores of the dual-core processor can read the original data via bus to carry out resolving, and resolving results or the original data can be outputted to users via the UART 8. The GNSS receiver board card on the basis of the ZYNQ architectures has the advantage that requirements on low cost and power consumption and high integration level of the high-precision GNSS board card can be met.

Description

technical field [0001] The invention relates to the field of surveying and mapping, in particular to a GNSS receiver board based on a ZYNQ architecture. Background technique [0002] The Zynq platform is the industry's first scalable processing platform with low power consumption, low cost, strong system and high flexibility based on the Xilinx programmable SoC (System on Chip, System on Chip) architecture launched by Xilinx. Zynq platform consists of two parts: processor system PS (Processing System, referred to as PS) and programmable logic PL (Programmable Logic, referred to as PL). The PS part is based on the ARM Cortex-A9 dual-core processor, equipped with an AXI interconnection matrix, Ethernet, UART and other general peripheral controllers, etc., providing comprehensive operating system support. The PL part is based on the Xilinx7 series FPGA architecture and provides general hardware programmable resources, including CLB (Configurable Logic Blocks, configurable logi...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a high-precision positioning board design based on Zynq platform for surveying and mapping, aiming to solve the problems of large power consumption, large volume and high cost in existing boards. The technical solution adopted is:

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