Big Dipper detector

Abstract

The invention discloses a Big Dipper detector. The Big Dipper detector comprises a host supporting multiple frequency point signals and a handheld dark chamber used for covering an antenna of a user machine to be detected. The host is connected with the handheld dark chamber through a radio frequency cable and a serial port of the user machine to be detected is connected with the host. The host comprises a PC, a radio frequency circuit, an FPGA module, a DDR2 module, a DAC module, an ADC module, a clock distribution module, an interface circuit, a USB module and a power module. The FPGA module is connected with an emission channel through the DAC module and the radio frequency circuit, and a receiving channel of the radio frequency circuit is connected with the FPGA module through the ADC module; the DDR2 module is connected with the FPGA module, the clock distribution module is connected with the FPGA module, the FPGA module is connected with a USB port of the PC through the USB module and the interface circuit, and the FPGA module is connected with the serial port of the PC through the interface circuit. The power module provides a power source. The Big Dipper detector is integrally designed and is convenient to use.

Description

technical field [0001] The invention relates to a detector, in particular to a Beidou detector. Background technique [0002] At present, a small number of domestic manufacturers undertaking Beidou tasks have developed navigation signal simulators, but generally only meet the requirements of equipment acceptance testing. These products have the disadvantages of large size, high price, many peripherals, and do not support multiple frequency points. Contents of the invention [0003] The purpose of the present invention is to provide a portable and highly integrated Beidou detector. [0004] The Beidou detector provided by the present invention includes a host computer supporting multiple frequency point signals and a handheld darkroom for covering the antenna of the user machine to be tested; the host computer is connected to the handheld darkroom through a radio frequency cable, and the serial port of the user machine to be tested Connect with the host; the host includes ...

AI Technical Summary

Problems solved by technology

[0002] At present, a small number of domestic manufacturers undertaking Beidou tasks have developed navigation signal simulators, but generally only meet the requirem

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