Radiofrequency signal detection device for Beidou RDSS user receiver and detection method thereof

Abstract

The invention relates to a radiofrequency signal detection device for a Beidou RDSS user receiver and a detection method thereof. The radiofrequency signal detection device for the Beidou RDSS user receiver and the detection method thereof include a user receiver to be detected, a horn antenna and a host, wherein the user receiver to be detected is connected with the horn antenna in a radiofrequency mode, the horn antenna is connected with the host through a radiofrequency cable, and the user receiver to be detected is connected with the host through a serial port line. The host includes a receiving channel, an ADC module, a FPGA, an interface circuit and a power module, wherein an input end and an output end of the receiving channel is respectively connected with an output end of the horn antenna and an input end of the ADC module, an input end and an output end of the FPGA is respectively connected with an output end of the ADC module and an output end of the interface circuit, and the power circuit is respectively connected with the horn antenna, the receiving channel, the ADC module, the FPGA and the interface circuit. The radiofrequency signal detection device of the Beidou RDSS user receiver and the detection method thereof have the advantages that a radiofrequency signal parameter detection and a data modulation are operated, the detection cost is greatly reduced, and the detection efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of instruments and meters and automatic detection equipment, in particular to a Beidou RDSS user machine radio frequency signal detection device and a detection method thereof. Background technique [0002] The RDSS service provided by the Beidou satellite navigation system requires the user machine to transmit L-band radio frequency signals to the navigation satellite. The parameters of the signal radio frequency signal and modulation data are directly related to the success rate of the RDSS service. These are also key performance indicators for measuring the Beidou generation user machine. When the user machine is produced, the manufacturer uses special equipment such as a power meter and a spectrum analyzer to perform detection and measurement. After the RDSS user machine has been used for a period of time, due to the aging of electronic components, the power and frequency accuracy of the RF signal emitted by it wi...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a Beidou RDSS user machine radio frequency signal detection device and its detection method, which solves the problems of complex detection technology and high cost of the L-band radio frequency signal transmitted by the Beidou RDSS user machine, and can detect radio frequency signal parameters and modulation Data and other performance parameters, automatically judge whether the performance indicators meet the requirements, convenient and fast, reduce testing costs and improve efficiency

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