High-resolution automotive radar with 6T8R or 8T8R is popular for OEMs in China due to its high performance and acceptable cost. Traditional way of building this kind of radar device is cascading two transceiver chips together and connecting them onto a strong radar MCU. Some new solution directly uses a newly designed 8T8R transceiver to replace a cascading method. We implement the system using a different way: directly cascade two radar SoC chips together. Besides cascading the LO signal, we connect two SoC chips by a SerDes interface. So, each SoC can access the other one using memory map method. All the resources of two chips can be utilized for processing. Some jobs are done by distributed processing, and the others are done by gathering required data in a single chip through SerDes transmission. In the talk, we will give the system architecture, an example of signal processing flow, the benefits of this kind of system. And we will give test results under different scenarios which are collected from some OEMs to show the performance of this system.
By engineers, for engineers: A technically grounded guide to the rapidly evolving in-cabin technology industry and companies.
