False satellite baseband signal maker and control method of built-in processor thereof
An embedded processor and baseband signal technology, applied in satellite radio beacon positioning system, electrical digital data processing, special data processing applications, etc.
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[0095] Please refer to accompanying drawing 1,2,3,4 shown, the present invention is made of programmable gate array, bus, interface, antenna, logic circuit, inverter, register, memory, clock manager, delay controller, digital frequency Synthesizer, interrupt recorder and D / A converter and other components, the device includes at least:
[0096] Field programmable gate array FPGA1, serial interface 2, boundary scan interface 3, memory chip 4, 75M crystal oscillator clock input 5, 20.46M high stability clock input 6, digital-to-analog conversion 7 and intermediate frequency signal 8 modules, and integrate four independent channels The pseudolite signal channel, logic function digital circuit and embedded soft core form an embedded system on chip. The whole system core is integrated in a field programmable gate array FPGA1 chip, and the soft core and four pseudolite peripherals are combined together as A baseband signal generator; wherein:
[0097] The input terminals of a field p...
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