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Test platform and channel error determination method

A technology for testing platform and channel errors, applied in the field of radar, can solve problems such as no better solution

Pending Publication Date: 2021-06-11
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no better solution for the determination of channel errors in the near field

Method used

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  • Test platform and channel error determination method
  • Test platform and channel error determination method
  • Test platform and channel error determination method

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Embodiment Construction

[0065] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0066] Please refer to figure 1 , is a schematic diagram of a possible application scenario of the embodiment of the present application. The above application scenarios can be unmanned driving, automatic driving, intelligent driving, networked driving, etc. Radar devices can be installed on motor vehicles (such as unmanned vehicles, smart vehicles, electric vehicles, digital vehicles, etc.), drones, rail vehicles, bicycles, signal lights, speed measuring devices or network equipment (such as base stations, terminals in various systems equipment) and so on. The embodiments of the present application are not only applicable to radar devices between vehicles, but also to radar devices between vehicles and drones, or rada...

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Abstract

The invention relates to a test platform and a channel error determination method, and belongs to the technical field of sensors. The test platform comprises a radar device and a target simulator, the target simulator is used for receiving radar signals from the radar device and forwarding the radar signals, the center of the target simulator and the center of the radar device are located on a first straight line, and the first straight line is parallel to the ground. The method comprises the following steps: calculating a first distance between the center of the radar device and the center of the target simulator; determining a system error according to the first distance; and calculating a channel error according to the system error and a weight, wherein the weight is used for adjusting the beam direction of the radar device. Based on the test platform, errors existing in each channel of the radar device can be accurately determined, so that the accuracy of radar angle measurement is improved as much as possible.

Description

technical field [0001] The present application relates to the technical field of radar, in particular to a test platform and a method for determining channel errors. Background technique [0002] With the development of science and technology, smart cars have gradually entered daily life. Vehicles can achieve automatic driving by setting various sensors and relying on advanced driver-assistance systems (advanced driver-assistance systems, ADAS) to provide information. These sensors include vision-based sensors such as in-vehicle cameras and radar-based sensors such as in-vehicle radars. Millimeter wave radar is a kind of vehicle radar, which is widely used in the automatic driving of vehicles. Autonomous driving technology requires higher resolution of millimeter wave radar, and the lateral high resolution of radar can be achieved by increasing the antenna aperture. Multiple-input-multiple-output (MIMO) is a technical means to increase the aperture of the antenna, which m...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/40G01S7/02
CPCG01S7/4021G01S7/021G01S7/02G01S7/40G01S13/02
Inventor 刘剑刚郭海王文祺廖小僮李珽
Owner HUAWEI TECH CO LTD
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