Radar interference suppression method and device based on radar signal sorting and medium

Abstract

The invention discloses a radar interference suppression method and device based on radar signal sorting and a medium, and the method comprises the following steps: an identification step: carrying out the sorting of radar signals in a space, and identifying the waveform parameters of the radar signals in a current electromagnetic environment; an optimization step: optimizing and adjusting the radar emission signal parameters of the vehicle based on the radar signal waveform parameters in the space; and a signal generation step: generating a local vehicle radar emission signal according to the adjusted local vehicle radar emission signal parameter. The device and the medium are hardware for realizing the method, the radar signals can be sorted according to a dense radar distribution environment through the radar signal sorting-based radar interference suppression method, the device and the medium, radar emission signal parameters of the vehicle are optimized, and finally the vehicle radar emission signal is generated. According to the invention, active radar interference suppression can be realized, the method is suitable for a complex dense radar distribution environment, and the robustness of the radar interference suppression technology is improved.

Description

technical field [0001] The invention belongs to the field of vehicle-mounted millimeter-wave radars, and in particular relates to a radar interference suppression method, device and medium based on radar signal sorting. Background technique [0002] Millimeter-wave radar is a high-precision sensor that measures the relative distance, current speed, and orientation of the measured object. It was used in the military field in the early days. With the development and progress of radar technology, millimeter-wave radar has been widely used in automotive electronics and drones. , intelligent transportation and other fields. [0003] Automotive millimeter-wave radar is one of the indispensable environmental perception sensors for smart cars. With the rapid increase in the penetration rate of vehicle-mounted millimeter-wave radars, there will be serious signal interference problems between different radars, resulting in the generation of a large number of false targets and the ris...

AI Technical Summary

Problems solved by technology

[0005] (1) Polarization isolation: The current application of 45° linear polarization and circular polarization isolation technology has limited suppression effect, the maximum suppression effect is about 15dB, and the hardware implementation of this method is complex in signal processing, which is not convenient for engineering implementation;

[0006] (2) Frequency diversity: With the widespread use of millimeter-wave radars and the continuous increase in their operating bandwidth, simple frequency diversity technology is difficult to apply to dense radar distribution environments, and effective frequency isolation cannot be achieved;

[0007] (3) Complex phase encoding: This technology has a low Doppler tolerance and is difficult to measure speed, so it is not easy to apply to the working environment of vehicle radar;

[0008] (4) Adaptive noise canceller: When the interference signal is related to the radar signal of the vehicle, this technology cannot detect the interference signal, so that the interference cannot be suppressed

[0009] To sum up, the traditional vehicle-mounted millimeter-wave radar interference suppression methods cannot effectively suppress interference

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