Vehicle-mounted radar frequency band distribution method and system

Abstract

The embodiment of the invention provides a vehicle-mounted radar frequency band distribution method and system. The method comprises steps of according to last iteration, the first use frequency bandof a vehicle-mounted radar in the vehicle, interference suffered by the vehicle radar and the first vehicle state, calculating a second vehicle state of the iteration this time and acquiring updatinghistory of the vehicle; according to the updating history of the vehicle and a first strategy function parameter acquired in the last iteration, calculating to acquire a second strategy function parameter; and according to the second vehicle state and the second strategy function parameter, calculating to acquire a second use frequency band of the vehicle radar in the iteration this time and switching the use frequency band of the vehicle radar to the second use frequency band. According to the invention, by combining observation of the current environment, distribution of radar resources in the dynamic environment is achieved; each vehicle is allowed to adaptively selects emission frequency band through a frequency band selection strategy according to local information of own observation;distributed control is achieved; interference can be effectively avoided; and the control is quite flexible than centralized control.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of radar frequency band allocation, and in particular to a method and system for vehicle-mounted radar frequency band allocation. Background technique [0002] With the development of radar technology, vehicle-mounted radars have been applied to more and more vehicles. However, the interference between vehicle-mounted radars has attracted more and more attention. Due to its own characteristics, vehicle-mounted radars are loaded on the road When the number of vehicles increases, the sources of interference also increase accordingly. The traditional interference elimination methods are generally pre-Fourier transform (Pre-FFT), post-Fourier transform (Post-FFT), pulse amplitude modulation, and staggered pulse repetition frequency ( PRF) and other methods eliminate radar interference. However, for the characteristics of vehicle radar, these methods can only eliminate interference as much a...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method and system for allocating vehicle radar frequency bands to solve the problem of spectrum selection and allocation for vehicle radar in the prior art. There is no method that can adapt to rapidly changing vehicle radar scenarios, resulting in Radar is difficult to eliminate the problem of inter-radar interference

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