Radar scene emulator brings automakers closer to vehicle autonomy

Automotive OEMs are provided with full-scene emulation via the Radar Scene Emulator introduced by Keysight Technologies. It enables them to lab test complex, real-world scenarios, accelerating the overall speed of test and full vehicle autonomy. 

Full-scene emulation in the lab is critical to developing the robust radar sensors and algorithms needed for advanced driver assistance systems (ADAS)/autonomous driving (AD) capabilities. Keysight’s full-scene emulator combines hundreds of miniature radio frequency (RF) front ends into a scalable emulation screen representing up to 512 objects and distances as close as 1.5 meters.

Using full scene rendering that emulates near and far targets across a wide continuous field of view (FOV), Keysight’s Radar Scene Emulator enables customers to rapidly test automotive radar sensors integrated in autonomous driving systems with highly complex multi-target scenes. 

Its patented technology shifts emulation away from target simulation for object detection to traffic scene emulation. This approach allows automotive OEMs to see more with a wider, continuous field of view (FOV) and supports both near and far targets. In this way, gaps in a radar’s vision are eliminated, while enabling improved training of algorithms to detect and differentiate multiple objects in dense, complex scenes. As a result, autonomous vehicle decisions can be made based on the complete picture, not just what the test equipment sees, explained Keysight.

Radar sensors can be tested against a limited number of targets, providing an incomplete view of driving scenarios and masking the complexity of the real-world. Keysight’s radar scene emulator allows OEMs to emulate real-world driving scenes in the lab with variations of traffic density, speed, distance and total number of targets. Testing can be completed early for common to corner case scenes, while minimising risk, added the company.

It also provides a deterministic real-world environment for lab testing complex scenes that can presently only be tested on the road. OEMs can “significantly accelerate ADAS/AD algorithm learning by testing scenarios earlier with complex repeatable high-density scenes, with objects stationary or in motion, varying environmental characteristics, while eliminating inefficiencies from manual or robotic automation,” said the company.

There are point clouds (multiple reflections per object), which improve resolution for each object. For example, distinguishing between obstacles on the road which is required for Level 4 and 5 vehicle autonomy as designated by the Society of Automotive Engineers (SAE).

Keysight will demonstrate the Radar Scene Emulator at CES 2022 (5 to 8 January) at Booth 4169, Las Vegas Convention Center, West Hall.

Keysight’s radar scene emulator is part of the company’s Autonomous Drive Emulation (ADE) platform, created through a multi-year collaboration between Keysight, IPG Automotive and Nordsys. The ADE platform exercises ADAS and AD software through the rendering of pre-defined use cases that apply time-synchronised inputs to the actual sensors and sub-systems in a car, such as the global navigation satellite system (GNSS), vehicle to everything (V2X), camera and radar. The open platform, ADE enables automotive OEMs, and their partners, to focus on the development and testing of ADAS/AD systems and algorithms, including sensor fusion and decision-making algorithms. Automotive OEMs can integrate the platform with commercial 3D modelling, hardware-in-the-loop (HIL) systems and existing test and simulation environments.

http://www.keysight.com

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Rohde & Schwarz and NOFFZ collaborate to develop automotive radar test 

Test system supplier, Rohde & Schwarz has collaborated with customised test system supplier NOFFZ Technologies to integrate the R&S Compact Antenna Test Range (CATR) reflector technology and radar echo generator, the AREG800A, into NOFFZ’s end of line radar sensor test system, the UTP 5069 CATR. The collaboration results in a fast, accurate and efficient radar sensor test system optimised for production, said Rohde & Schwarz.

Vehicles have to meet Society of Automotive Engineers (SAE) Level 3 ) relying on radar sensors for autonomous driving. Imaging radar sensors have been developed with significantly finer spatial resolution to this end, but this requires much larger antenna apertures. Measuring these radar sensors in the direct far-field (DFF) would be impractical for production environments because they would require too much space. The CATR technology in the R&S ATS1500C chamber, however, creates a large quiet zone with far-field conditions in a very compact physical footprint.

The UTP 5069 CATR is designed for high-volume production test and calibration with a low-reflection anechoic chamber. It is available with a compact footprint of less than 3.5 sqm (40 sqft). The relative motion of the device under test during calibration, loading and unloading can be realised either by an integrated robot or a goniometer. Both motion options can be selected depending on the requirements for movement flexibility, position accuracy, and cycle time.

The test system was validated during its development by leading edge radar module developer Uhnder.

The Rohde & Schwarz technology group offers test and measurement, technology systems, and networks and cybersecurity. Founded more than 85 years ago, the group partners with industry and government customers around the globe. 

The company is headquartered in Munich, Germany.

Rohde & Schwarz employs its technical expertise to develop innovative solutions for the entire automotive lifecycle from pre-development to production. OEMs, Tier 1s, chip suppliers and engineering service providers around the world rely on the company’s proven test solutions for automotive radar, connectivity, infotainment, high-performance computing and EMC compliance. 

Rohde & Schwarz supports its customers as a partner for the launch of next-generation ADAS and AD systems. The company’s experience and expertise in wireless communications ensure robust connectivity conforming to all standards from 5G and C-V2X to UWB, Wi-Fi and GNSS. The company’s instruments enable the development and debugging of in-vehicle networks.

The company also offers test and measurement equipment and custom turnkey test systems for EMI and EMS measurements on vehicles and vehicle components in line with all major CISPR, ISO and manufacturer-specific EMC standards. These systems and equipment support full vehicle antenna testing and wireless co-existence testing with the user’s own systems and instruments. The company also offers outstanding solutions at the component and board level tests during ECU production. 

http://www.press.rohde-schwarz.com

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Rohde & Schwarz and MediaTek deliver Wi-Fi 6E production test

Rohde & Schwarz has integrated its CMP180 radio communication test platform into MediaTek’s ATE tool to offer one of the first production test solutions for Wi-Fi 6E devices. 

The R&S CMP180 radio communication test platform is designed to manage multiple parallel signals for both multiple devices and MIMO transmission methods, providing maximum measurement speed at frequencies up to 8GHz. The analyser / generator single box tester covers wireless standards including Wi-Fi 6E, Wi-Fi 7 and 5G NR at FR1 frequencies, with a wide range of legacy technologies.

Wi-Fi 6E devices can now take advantage of the 6GHz band to the full power of Wi-Fi 6 by making use of 160MHz channels in a widely uncongested band. They are able to deliver multi-gigabit connection speed, and low latency for applications like working, schooling, gaming and streaming.

In January 2021, MediaTek announced its Wi-Fi 6E platforms for access points and client-side devices have been selected for the Wi-Fi Alliance Wi-Fi 6E Certification Program. The company offers both MT7915-AP-AX (access point) and MT7915-STA-AX (client-side) as testbed devices. 

As a result of the co-operation, the R&S CMP180 is now qualified for Wi-Fi production testing with MediaTek’s automatic production test tool (Meta and Multi ATE). MediaTek’s customers using the latest MediaTek mobile platforms with wireless technologies can now integrate the R&S CMP180 in production lines.

According to Dr Yenchi Lee, deputy general manager of MediaTek’s wireless communications business unit at MediaTek explained that the collaboration has enabled customers to speed up development and verification of products using the R&S CMP180 alongside devices under test (DUT) provided by MediaTek.

The Rohde & Schwarz technology group has products for test and measurement, technology systems and networks and cybersecurity. Founded more than 85 years ago, the group is headquartered in Munich, Germany.

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SerDes transmit and channel test are included in Keysight’s automotive suite

Automotive serialiser/deserialiser (SerDes) transmit and channel test applications, as well as an automotive adapter portfolio to verify mobile industry processor interface (MIPI) A-PHY and Automotive SerDes Alliance (ASA) standards have been developed by Keysight Technologies in association with Sony Semiconductor Solutions and Rosenberger.  

High-speed automotive SerDes interfaces enable transport data streams to make in-vehicle video, audio and communication possible. The high bandwidth, reliability and performance of SerDes serial links are key requirements in automotive applications, which enable advanced infotainment and advanced driver assistance systems (ADAS) in vehicles.

Tests performed by Keysight’s AE2010T automotive SerDes transmitter test application enable customers to automatically configure each result utilising a Keysight Infiniium UXR-series oscilloscope. Tests performed by Keysight’s AE2010L automotive SerDes channel test application enable customers to automate network analyser tests. Together, these applications provide critical information to maintain data integrity and low loss networks, while meeting current automotive SerDes specifications, says Keysight.

Keysight and Sony Semiconductor Solutions Corporation are collaborating to bring the industry’s vision of standardised automotive SerDes to market. This will have benefits for chipset vendors and OEMs, bringing unified test results and requirements.

“Automotive SerDes standards are important to our strategy of embedding a serialiser on our image sensors. We are pleased to work with Keysight to validate our design against emerging SerDes specifications,” said Kenji Onishi, general manager, automotive business department, Sony Semiconductor Solutions.  

Keysight has also partnered with Rosenberger to offer customers industry accepted adapters for automotive SerDes and high-speed data links. “Our customers will benefit from testing solutions for all automotive connector interfaces, which are either standardised or accepted to become global standards for automotive high-speed data transmission soon,” said Hauke Schütt, executive vice president of test and measurement at Rosenberger. “This includes . . . for coaxial and differential transmission channels, such as FAKRA, HFM, HSD or H-MTD,” he said.

Keysight’s SerDes transmitter and channel test applications offer automatic configuration and calibration cues of all required test equipment to reduce overall test time. They also offer an extensive range of tests for standards conformance of MIPI A-PHY and ASA, to reduce cost and save multiple installations and license purchases. The test framework to report multi-trial results includes a full array of statistics for each measurement. They also offer quick, accurate, and repeatable test results for validation and debugging, says Keysight.

Channel test software runs on a E5080B ENA Vector Network Analyzer, PXI Vector Network Analyzers, or Streamline Series USB Vector Network Analyzers and provides the framework for connectors, cables, and harnesses to quickly test automotive SerDes links.

http://www.keysight.com

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