Road condition detection method based on radar communication integration

Abstract

The invention discloses a road condition detection method based on radar communication integration, comprising: 1. The radar communication integration signal pair s sent by the main station radar at time k 1 (k) and s 2 (k), according to the echo signal to obtain vehicle and obstacle detection information I(k) in the road section; 2, the main station radar transmits radar communication integrated signal pair s at k+1 time 1 (k+1) and s 2 (k+1), obtain vehicle and obstacle detection information I(k+1) in the road section according to the echo signal; by changing s 2 The width of each pulse in (k+1) modulates the detection information I(k) at time k to s 1 (k+1) and s 2 (k+1); 3. Vehicles in the road section receive the integrated radar communication signal pair s 1 (k+1) and s 2 (k+1), from which the detection information I(k) at the previous moment is obtained. In this method, the radar signal for detecting the target and the communication signal for transmitting the detection information are realized by a group of equal-period pulse signal pairs, which saves electromagnetic resources on the basis of realizing the road condition detection function.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and in particular relates to a road condition detection method based on radar communication integration. Background technique [0002] Intelligent transportation system is an advanced comprehensive integrated traffic management system, which is based on modern electronic information technology and serves the transportation system. During the driving process of the vehicle, other vehicles and obstacles on the road will affect the driving of the vehicle. If the movement information of other vehicles and obstacles in the environment can be obtained in real time, it will be conducive to the safe driving of the vehicle and at the same time facilitate the driving assistance Or the realization of path planning, obstacle avoidance and other functions in unmanned driving. [0003] The Chinese patent document with the application number 201910703507.6 discloses a radar detection method ...

AI Technical Summary

Problems solved by technology

In actual use, most car owners are not willing to actively send their own motion information, thus limiting the use of this method

In addition, when there are many vehicles on the road, it is necessary to send information to many vehicles, and at the same time receive request information from a large number of other vehicles, which will bring pressure to the communication equipment

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