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The static loading test spectrum is the loading spectrum formed according to the loading table in the static loading test, which is composed of different target values and other parameters. The generation process of test load spectrum refers to process of running to the specified value according to the specified time and curve type. Refer to the upper computer in the current mainstream control system. The operating process realizes an algorithm of generation and controlling the load spectrum based on FPGA, which satisfies the operation of the test load spectrum and command in the existing control system. It includes the generation of the continuous loading spectrum, the single-step adjustment of the spectrum, the single-point control, the selection of the spectrum segment control and other operations, so as to lay the foundation for the development of the autonomous controller.