Welcome to the leading exhibition gathering automotive engineers in China and Asia !

The China Guangzhou International Automotive Technology Expo 2022

Time:July,21-23,2022Venue: Guangzhou Poly World Trade Exhibition Hall


020 3439 7221

Visiting Time
Data Time
  • July 21 09:00-16:30
  • July 22 09:00-16:30
  • July 23 09:00-16:30
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  • 86-020 3439 7221
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  • Room 505, Building A, Pazhou Exhibition Creative Park, No. 10, Haicheng East Street, Haizhu District, Guangzhou, China
POSITION:HOMENewsIndustry News
How 4D imaging radar sensors can be validated

Fourth dimension: radar sensors which, in addition to speed, distance and direction (azimuth), also correctly record the elevation angle. This means increased requirements for test systems.

Ultra-high-resolution imaging radar sensors, often referred to as 4D radars, provide detailed images of the radar environment with a wide field of view as well as altitude, distance, and speed information. Testing such radar sensors places high demands on the capabilities and bandwidth of the radar target simulator used. dSPACE has developed the first radar target simulator that meets these requirements with full 5 GHz bandwidth.

The simulator was created with powerful radio-frequency technology. Assisted and automated driving are extremely demanding in terms of environment recognition: If a self-driving vehicle is to be able to react appropriately to even the most complex, unpredictable traffic situation, a reliable 360-degree all-round view of its surroundings is required. Radar sensors play an important role here, as they can be used for monitoring close-up areas as well as for medium and long distances. So far, radar sensors have only been able to capture their surroundings as a three-dimensional space to a limited extent. Normally they show the speed, distance, and direction (azimuth) of an object. At most, rough estimates can be made of the height (elevation). Radar with an additional fourth measurement dimension For a more complete image of captured objects, the development of radars which also precisely capture the elevation angle is currently advanced. In addition, the resolution is massively increased in all dimensions. Thus, the radar becomes an imaging technology in 3D - with speed as an additional fourth measurement dimension. These 4D radars provide the basis for precise real-time object recognition that works in all weather and light conditions which is essential for a higher degree of autonomy in automated driving. To transport the additional information with the radio-frequency signal, ultra-high resolution radars work with a particularly high modulation bandwidth. With modern radar systems for automotive applications, which operate at frequencies between 76 and 81 GHz, it can be up to 4 GHz. This enables distance resolutions in the centimetre range down to 3.75 cm. Previous radar systems mostly only work with a bandwidth of up to 1 GHz and are therefore clearly limited in their resolution.

China International Automotive Technology Expo, shorted for AUTO TECH, created by JS Watson Exhibition, is a combination of exhibitions & conferences covering important topics in the automotive industry such as automotive electronics, connected car, autonomous driving, EV/HV/FCV, lightweight and automotive test. Automotive OEMs and Tier 1 suppliers visit the exhibition to find suppliers and partners.

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