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What used to be the car radio has evolved from adding a cassette player to state of the art entertainment on the move. All this while keeping driver & passengers connected. The design challenge is to bring all the communication and broadcast standards into a small form factor that fits in the dashboard of the car. The RF modules need to support multiple standards in a single assembly and multiple modules are placed next to each other. The frequencies defined by the RF standards are in very close proximity and hence need to co-exist with each other. Moreover, the antennas inside the car are subjected to cross-coupling effects with mobile devices of passengers. To ensure the RF performance of the infotainment system, all of these scenarios need to be thoroughly tested.This application note highlights some of the RF measurement challenges and introduces Rohde & Schwarz equipment required for relevant RF characterization of car infotainment devices.

English - 2017年5月8日

The UWB (Ultra-Wideband) technology is a short range wide-band radio technology specified for device to device communication operating in unlicensed spectrum. It is an RF positioning technology that enables accurate and secure peer-to-peer ranging between mobile devices with robust resistance to interference while consuming very low energy and coexisting well with other radio communication systems. UWB is used for a variety of different applications, such as asset tracking, secure payment, personal tracker, real time location services and keyless access and start of a vehicle etc. According to ABI Research forecasts, there will be well over 1 billion UWB annual device shipments by 2026. Almost every smart phone shipped in 2026 will support UWB services.Talking about testing aspect of a UWB device, in general two test methodologies can be adopted as other wireless products, either the traditional testing mode (so-called conducted test mode) with wired RF connection between the test measurement equipment and device under test (DUT) or over the air (OTA) test mode in an OTA anechoic chamber. Sometimes, it is not always possible or necessary to perform the tests under conducted mode due to the limiting factors, e.g. cost, space, complexity and direct access to the RF connectors of the product. In this case, OTA testing is then becoming a non-evitable approach. Moreover, OTA testing reflects the usage of DUT in a real condition.In this application note, R&S® OTA test solution covering transmitter (Tx), receiver (Rx) and Time of Flight (ToF) testing in Wireless Automated Testing (WMT) environment is described. The measurement results throughout the whole document are based on NXP Trimension™ NCJ29D5 UWB automotive IC.

English - 2023年4月12日

Road safety is a global challenge at present and will be in the future. Automotive radar has become a keyword in this area and pushes again a step forward to increase driving comfort, crash prevention and even automated driving.Driver assistance systems which are supported by radar are already common. Most assistant systems are increasing the drivers comfort by collision warning systems, blind-spot monitoring, adaptive cruise control, lane-change assistance, rear cross-traffic alerts and back-up parking assistance.Today's 24 GHz, 77 GHz and 79 GHz radar sensors clearly need the capability to distinguish between different objects and offer high range resolution. That is possible with increased signal bandwidth.Furthermore, those radar systems need to cope with interference of many kinds like the one from other car's radar.This Application Note addresses signal measurements and analysis of automotive radars that are crucial during the development and verification stages. It also shows a setup to verify the functionality of a radar in case of radio interference.

English - 2016年6月10日

EMI Automotive Band Evaluation extension is an on-board EMI measurement sequence in broadband and communications frequency bands for automotive and aerospace applications. This application notes shows how to configure, run, and automatically document tests in a sequence coming with EMC32-K51.

English - 2014年7月17日

R&S®CMWcards, an intuitive and user-friendly software application, makes it possible to recreate field testing in a lab environment

English - 2019年2月19日

R&S®CMWcards is an intuitive and user-friendly software application that makes mobility verification easier than ever.

English - 2019年7月23日

R&S®CMWcards, an intuitive and user-friendly software application, makes mobility verification easier than ever.

English - 2019年4月9日

Ethernet communications has been introduced in automotive networks to enable fast and cost efficient data communications, e.g. for the rearward camera or audio/video streaming. In the OPEN alliance (www.openSIG.org), the automotive industry has standardized the BroadR-Reach® physical layer as the automotive Ethernet communications standard. It will be part of the IEEE 802.3 standard. BroadR-Reach® uses full duplex twisted pair communications, enabling 100 Mbit/s data transfer. For interface verification the OPEN Alliance has specified a BroadR-Reach® conformance test with six test cases.

English - 2015年3月27日

The shift from internal combustion engine (ICE) automobiles to electric vehicles (EV) has come with an array of new subsystems and components that introduce new EMC considerations. The level of complexity involved in automotive EMC testing increases with dynamic driving conditions where manufacturers not only have to refer to the framework standards offered, but must also improvise and establish new internal standards to ensure the vehicle and its internal components all function properly under all driving conditions. A number of challenges may arise when building a suitable test bench that thoroughly tests EVs and electrical components. This educational note dives into the development of dynamic EMC test systems, their inherent challenges, and how Rohde & Schwarz and AVL, one of the world’s leading mobility technology companies for development, simulation and testing in the automotive industry, have teamed up to provide a unified EMC test platform for dynamic driving conditions.

English - 2025年3月11日

This White Paper provides a more detailed view on radar waveforms for Aerospace and Defence and commercial radar systems. Waveforms such as pulse and pulse-Doppler signal, continuous wave and frequency shift keying waveforms are described. It also shows continuous waveform trends designed for specific needs and application differences of continuous wave radar compared to pulse radar systems.

English - 2015年8月31日

This application note is a systematic guide to help test engineers configure the Vector Network Analyzer in order to perform compliance test on Automotive Ethernet cables according to the Open Alliance TC9 standard.

English - 2019年8月13日

Automotive Infotainment Testing

English - 2018年2月19日

The antenna patterns of automotive radars provide a wealth of information that is of vital importance during radar development and validation.

English - 2020年10月28日

This application note describes different measurement techniques and methods for an automotive lighting module based on a hybrid controller design. Of course, a lighting module in such an environment has to fulfil requirements according to the automotive standard, which is typically a relatively high-level standard compare to the industry standard. The oscilloscope is a perfect tool for this application to verify the set of requirements because time domain signals (analog and digital) are present in the whole design. Furthermore, measurements in the frequency domain have to be performed, which a modern oscilloscope can fulfil. In addition to the oscilloscope, a programmable power supply supports the measurement in several measurements. The set of requirements are the main reason why a hybrid controller from Microchip is a great choice for this design because it provides tremendous analogue and digital capabilities. The hybrid controller provides beside the analogue functions like an operational amplifier digital functions like analog-to-digital converter and interface functions like UART, CAN or LIN to interact with other systems. The programmable software part is hosted in the digital part. The digital part of the controller implements the communication interface and provides status information to the outer system controller. The light source itself has to avoid any flicker and shall be capable to dim to different lighting levels. Wide input voltage variations and efficiency have to be taken into account during the design of a converter dedicated for automotive applications. Nevertheless, the measurement considerations presented with the design are valid and applicable in other professional lighting industries as well.Thanks to Mr. Andreas Reiter and Mr. Milan Marjanovic from Microchip who provided us with hardware and software and their great expertise to create this application note.

English - 2020年6月8日

Automotive radar sensors concealed in bumpers must transmit in the correct frequency domain. To hide the sensors, radar-transparent areas are usually painted the same as the rest of the vehicle. You need to know bumper material propertiers when selecting paint and coatings. In the past, quasi-optical or waveguide based setups with vector network analyzers (VNA) were used. This application card describes a simplified material characterization method in the automotive radar frequency domain (76 GHz to 81 GHz) using the R&S®QAR50 automotive radome tester.

English - 2025年6月11日

FMCW radar sensors are used in vehicles for adaptive cruise control and for blind-spot, lane-change and cross traffic assistants. Radar sensors for acquisition of the surroundings are key components for future vehicles with semi-autonomous and fully autonomous driving. Autonomous driving requires radars that reliably detect objects in the surrounding area. Radar makes it possible to quickly and precisely measure the radial velocity, range and azimuth and elevation angle of multiple objects. For this reason, the automobile industry is increasingly using this technology in advanced driver assistance systems (ADAS). Rohde & Schwarz offers T&M solutions for generating, measuring and analyzing radar signals and components to ensure trouble free operation of these sensors. The high-performance oscilloscope R&S® RTP with four measurement channels is the perfect solution for multi-channel measurements on MIMO radar sensors and correlation with other signals e.g. power rails, whereas a spectrum analyzer such as the R&S® FSW85 offers highest dynamic up to 85 GHz.This application note focuses on how to measure and analyze FMCW radar signals with up to 6 GHz bandwidth with an R&S® RTP oscilloscope. On-board analysis features for pulse and chirp analysis for single- and multi-channel measurements will be addressed as well as the combination of oscilloscope and R&S® VSE software. Measurement of an FMCW radar signal in the 77 - 81GHz band with 4 GHz bandwidth is demonstrated.

English - 2019年8月7日

Automotive radar is vital to the advanced driver assistance systems (ADAS) that will help achieve Net Zero (zero accidents, zero fatalities) targets in the automobile industry. In a driving environment, radar sensors must detect real objects even when there is interference. The R&S®AREG800A automotive radar echo generator is essential to any solution that tests radar sensor immunity to interference.

English - 2023年6月15日

Educational note: Accelerate automotive ADAS validation with hardware in the loop

English - 2025年9月3日

In the fast-paced world of automotive manufacturing, ensuring reliability and precision in radar sensors is paramount. Rohde & Schwarz provides advanced production testing solutions for automotive radar sensors and empowers tier 1 suppliers to deliver exceptional performance, safety and efficiency.

English - 2025年3月13日

Automotive Infotainment Testing

English - 2018年2月21日

Automotive Infotainment Testing

English - 2018年4月24日

Automotive Infotainment Testing

English - 2018年2月19日

Today’s infotainment units offer a wide range of features to truly embody the concept of the connected car.

English - 2018年6月14日

English - 2016年10月20日

The automotive industry is undergoing a transformative shift towards electrification. Precise measurement and analysis of electric drivetrains are vital to improved performance, efficiency and reliability. MXO oscilloscopes have become an essential test tool for these measurements, with real-time insight into voltage and current waveforms that let engineers and technicians explore the intricate mechanisms to improve drivetrain performance and efficiency.

English - 2024年3月12日

World’s first fully electronically steerable antenna array.

English - 2023年6月27日

Integrating automotive radar sensors into cars is very challenging. Radars operate behind bumpers, design emblems, in side mirrors or other plastic parts of the car. All radome materials need to be sufficiently transparent and homogeneous for automotive radars, which operate in the 77 GHz and 79 GHz band or even both simultaneously. The new system measures, visualizes and analyzes radar radomes in a manner you have never seen before. Optimize your radome material for best performance and effective integration of modern automotive radar sensors.

English - 2019年8月27日

Automotive radars are essential to safety systems such as collision avoidance and adaptive cruise control. The radars are a pillar of ADAS/AD systems and an important part of sensor fusion. The effective isotropic radiated power (EIRP) of automotive radar sensors is the total power emitted from radar antennas and a comprehensive measure of signal strength and coverage capability (essential to assessing automotive radar sensor performance). The AREG800A automotive radar echo generator makes for easy EIRP measurements when validating automotive radar sensors.

English - 2024年8月6日

English - 2018年8月6日