China 10月 10, 2024
汽车制造商在车外或车内集成天线时面临多项挑战。进行天线仿真既复杂又耗时，而且仿真结果必须通过实际测量来证明。由于封闭的车辆环境，根本无法在车内进行精确测量。需要将测量和仿真结合起来，才能获得最佳的天线位置，从而为车内用户提供最佳的连接性能。
R&S与 IMST 联手开发了一套天线数字孪生解决方案流程，共分为三个步骤。第一步是使用R&S的测试设备（包括电波暗室、R&S ZNA 矢量网络分析仪和 R&S AMS32 软件）对物理天线进行鉴定。第二步的重点是利用操作简便的近远场变换算法（FIAFTA）创建数字孪生。最后使用 IMST 的EM-TWINTM软件对虚拟场景进行三维电磁模拟。
R&S和 IMST 的天线数字孪生解决方案具有多重优势。特别是，它通过将测量和仿真相结合实现前置天线性能验证，为天线供应商和汽车制造商大大降低了成本和时间。它通过电波暗室和矢量网络分析仪与 R&S AMS32 自动化软件的结合使用，确保了物理天线性能的准确性和一致性。
此外，EM-TWIN仿真结果可在数小时而非数天内得出，因此该解决方案大大缩短了开发时间。由于考虑了生产公差和车体反射，天线的性能可以得到提高。获得专利的EM-TWIN数字天线双源技术可提供极高的建模精度。
该解决方案可以在实际车辆可用之前找到天线的最佳位置，从而避免昂贵且耗时的开发周期。该解决方案能够确定天线的最佳位置并验证车载无线覆盖范围是一项重大优势，尤其是因为在车辆物理环境中进行传统测量极为困难且不可靠。总之，R&S和 IMST 获得专利的天线数字孪生解决方案缩短了设计周期，优化了车载天线的位置，从而在原型和底盘面世之前就提高了覆盖范围和性能。
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Patrizia MuehlbauerPR Manager Products & Standard Systems
(+49 89) 4129-13 818
press@rohde-schwarz.com
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罗德与施瓦茨
罗德与施瓦茨业务涵盖测试测量、技术系统、网络与网络安全，致力于打造一个更加安全、互联的世界。 成立90 年来，罗德与施瓦茨作为全球科技集团，通过发展尖端技术，不断突破技术界限。公司领先的产品和解决方案赋能众多行业客户，
助其获得数字技术领导力。罗德与施瓦茨总部位于德国慕尼黑，作为一家私有企业，公司在全球范围内独立、长期、可持续地开展业务。
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Automotive test solutions – Test it, trust it.
As a leading global supplier of test and measurement software, instruments and systems, Rohde & Schwarz applies its market-leading technical expertise to develop innovative solutions through the entire automotive lifecycle from pre-development to production. OEMs, tier1s and chip suppliers around the world rely on the company’s proven test solutions for automotive radar, connectivity, infotainment, high-performance computing and EMC. With innovative solutions for the development, integration and production testing of radar, Rohde & Schwarz act as a trusted partner for customers creating the next generation of ADAS / AD systems. The company’s long-established expertise in wireless technology ensures robust connectivity in all standards from 5G and C-V2X to UWB, WiFi6 and GNSS. In-Vehicle Networks supporting the latest bus speeds and ECUs like high-performance domain controllers can be developed and debugged, complex EMI issues can be using the test equipment. With decades of experience in EMC testing, Rohde & Schwarz offers test and measurement equipment and customizable turnkey test systems for performing EMI and EMS measurements on vehicles and components in line with all major CISPR and OEM specific EMC standards. They support full vehicle antenna testing and also wireless coexistence testing with using own systems and instruments. The company also offers outstanding solutions for board level tests (ICT/FCT/BS) during ECU production. Partners and customers around the world use these test solutions to ensure automotive components and systems function correctly, coexist successfully and communicate with the outside world without errors.
