High-integration high-precision linear frequency modulation continuous wave radar system

Abstract

The invention discloses a high-integration high-precision linear frequency modulation continuous wave radar system comprising a transceiver unit and a processing unit. The transceiver unit comprises ahigh-linearity linear frequency modulation transmitting circuit and a receiving circuit. The processing unit comprises a communication interface circuit and The AD and the signal processing circuit,the transceiver unit is bidirectionally connected to the second RF connector, the second RF connector is bidirectionally connected to the radiating unit, and the output end of the transceiver unit isalso connected to the input end of the first RF connector. The output of the first RF connector is coupled to the input of the processing unit. The invention solves the traditional linear frequency modulated continuous wave radar system by setting high linearity linear frequency modulation transmitting circuit, receiving circuit, communication interface circuit, AD and signal processing circuit, first RF connector, second RF connector and radiation unit. The architecture is low in integration, it is not easy to install and maintain, and the ranging accuracy is low.

Description

technical field [0001] The invention relates to the technical field of radar ranging, in particular to a highly integrated and high-precision linear frequency modulation continuous wave radar system. Background technique [0002] Chirp continuous wave radar has high resolution and low interception. It has more advantages than ordinary pulse radar in range velocity deambiguation. It is an important branch of radar field. A large number of applied researches have been carried out in the fields of target monitoring and so on. Some chip manufacturers have also specially developed integrated chips suitable for the application of chirp continuous wave radar, which can greatly reduce the size of the system in low-precision occasions, reduce complexity and cost, but in non-contact detection occasions that require ranging accuracy less than 1mm , the existing integrated chips on the market cannot meet the design requirements, so the limitations of volume and precision put forward hi...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a high-integration and high-precision linear frequency modulation continuous wave radar system, which solves the problem that the traditional linear frequency modulation continuous wave radar system has a low integration degree, is not easy to install and maintain, and has problems with distance measurement. low precision problem

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