Main board of static satellite simulator

Abstract

The utility model relates to a main board of a static satellite simulator, which comprises a substrate circuit board (11), a CPU (central processing unit) circuit board (12) and process circuit daughter boards (13); the substrate circuit board (11) comprises a main board extension interface module (111), a power supply and power supply management module (114), and a static satellite signal analog circuit module (118). the CPU (central processing unit) circuit board (12) comprises an FPGA (field programmable gate array) module (121), an ARM (advanced RISC machine) module (122) and a confidential calculation micro-control unit (MCU) module (123); the process circuit daughter boards (13) are adopted as signal process circuit daughter boards and comprise an AD (analog to digital) board, a DA (digital to analog) board and a code value signal process board; as a structure that the functional division is accurate and the daughter board is overlapped on the main board is adopted by the main board of the simulator, the main board of the static satellite simulator has a compact structure, and is convenient to maintain and debug; the CPU board is separated from the main board of the simulator; an AD / DA (analog to digital / digital to analog) signal process module is separated from the main board of the simulator; and an interface is only preserved on the main board, and is convenient for upgrading and updating the CPU board.

Description

technical field [0001] The invention relates to satellite signal simulation technology, in particular to a main board of a portable multifunctional static satellite simulation device. It belongs to the field of computer automatic measurement and control. Background technique [0002] The satellite control system is one of the core systems of the satellite. During the development process or the static test and joint debugging process of the whole satellite, supporting ground equipment is required for testing and simulation. The static satellite simulator is one of the key supporting ground equipment in the satellite development process. Various types of satellite simulators currently published are mostly simulations of satellite dynamic communication signals, and are used to verify and debug the technical status of receivers, GPS terminals and other equipment. Not applicable to satellite control system ground test equipment. As long as the current satellite simulator techn...

AI Technical Summary

Problems solved by technology

Not suitable for satellite control system ground test equipment

As long as the current satellite simulator technology has: the industrial computer based on PCI and other computer buses plus general-purpose and development-specific board modes, or the virtual instrument form of a chassis with functional modules based on instrument buses such as VXI and PXI, these modes are often bulky and cumbersome. It is heavy and expensive; and one of its core components: commercial computer motherboards or VXI, PXI and other backplanes are not suitable for simple, flexible and mobile satellite simulators carried by individual soldiers

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