Система восприятия окружающего мира беспилотным транспортом

Autonomous vehicle perception sensing involves the collection of data from vehicle sensors and the processing of this data into an understanding of the world around the vehicle—much like the sense of sight for a human driver. Analog Devices believes that effective autonomous vehicle perception sensing will leverage vision, RADAR and LIDAR sensing modalities. Each sensing modality has its strengths and weaknesses, but by leveraging sensor fusion techniques, the strengths can complement one another and the weaknesses can be supported.

Analog Devices’ longstanding system expertise and innovative Drive360™ portfolio encompassing autonomous vehicle perception sensing for LIDAR and RADAR enable our customers to seamlessly integrate the robust, high quality sensor data and information processing required for trusted ADAS systems today, while ensuring a safe autonomous future. Please see our list of featured autonomous vehicle perception sensing RADAR and LIDAR products.


Sensor Fusion for Autonomous Transportation Systems

Vision: Camera and Software

Vision:
Cameras and Software

LIDAR: Light Detection and Ranging

LIDAR:
Light Detection and Ranging

RADAR

RADAR:
Radio Detection and Ranging

RADAR Systems

The vast majority of RADAR systems on the road today are based on 24 GHz and 77 GHz discrete RF technology, including phase locked loop, ramp generator, transmitter, receiver, and ADC. For more than 15 years, ADI has pioneered these technologies to bring active safety to the mass market and has shipped more than 300 million ICs into automotive RADARs worldwide. While this impact has been great, and 70% of U.S. car models now offer blind spot detection as optional and 10% as standard equipment, active safety needs to continue to evolve. For ADI, this means leveraging those 300 million ICs sold and 15 years of automotive safety RFIC design and expertise, and funneling it into revolutionary products for the next generation of active safety and autonomous driving systems.

ADI is laser focused on performance and reducing the size, weight, and power (SWaP) of the entire RADAR system.

Analog Devices’ next-generation highly integrated mmWave RF-to-bits transceiver is ideally positioned to solve the most challenging aspects of high performance imaging RADAR and emerging premium ADAS systems. The RF SoC and companion power management ASIC are able to resolve to <1° in angular resolution and as low as 3 cm for range discrimination. This precision allows for the system to be able to more quickly and accurately detect and classify objects with a much lower false alarm rate. Moreover, ADI has extensive system level expertise and has developed advanced platforms that are used to prove ADI technology not just at the IC level, but as a full RADAR stack. As a dedicated development partner, ADI de-risks system integration hurdles for key and strategic customers saving them time and effort, while enabling them to focus on their core development and bringing robust products to market quickly.

LIDAR Systems

LIDAR is a key pillar of Analog Devices’ autonomous vehicle perception sensing strategy. LIDAR utilizes pulses of light to translate the physical world into 3D digital images in real time with a high level of confidence. Traditional LIDAR systems—found primarily today on test vehicles—are expensive. In addition to this, they can be unsightly and consist of mechanical components that can lead to system downtime. Analog Devices is investing heavily in truly non-mechanical and cost-effective LIDAR technologies to facilitate the mainstream adoption of automotive LIDAR systems and enable automotive suppliers as well as OEMs to deploy LIDAR-based ADAS and autonomous driving applications in passenger vehicles.

Analog Devices has a rich set of high performance signal chain and power management components to build virtually any LIDAR system. These products are acceptable for pulsed or FMCW/continuous wave systems, as well as systems built around wavelengths ranging from 900 nm to 1500 nm. Going forward, Analog Devices will be releasing key electrical products that will be optimally configured for these LIDAR systems.

Continuous-Wave

The CW principle continuously uses either amplitude modulation (AM) or frequency modulation (FM) of the light source. In AMCW LIDAR systems, the transmitted signal’s frequency is held constant while the amplitude is modulated. The distance between the AMCW LIDAR system and detected objects is a result of the phase difference relative to the local oscillator. In FMCW LIDAR systems, the transmitted signal’s amplitude is held constant while the frequency is modulated. The distance between the AMCW LIDAR system and detected objects is a result of the phase difference relative to the local oscillator.

Time of Flight

The ToF principle uses high power optical pulses in durations of nanoseconds to illuminate the scene. The measured time for the pulses of light to go out and return to the pulsed LIDAR system is directly proportional to the distance between the pulsed LIDAR system and the detected objects.

LIDAR: Accurate Depth Perception Sensing

High performance signal processing is the core of Analog Devices. We are endlessly challenging ourselves to develop innovative designs to reduce your time to market and help your systems perform at the leading edge. Our advanced portfolio of LIDAR technology products enables the highest performance LIDAR systems.

Learn more about LIDAR technology

LIDAR: Accurate Depth Perception Sensing

3D Time of Flight Development Platform

Modular ToF solution, built on the industry-standard 96Boards platform, which enables measuring objects in the X, Y, and Z axes.

Get details on our ToF platform

3D Time of Flight Development Platform

AD-FMCLIDAR1-EBZ Development Platform

Low power ADC signal path, superior SNR increasing LIDAR system accuracy, and unmatched TIA performance.

Learn more about the LIDAR platform

AD-FMCLIDAR1-EBZ Development Platform

Vision Systems

ADI has a long and successful history in ADAS Vision by providing processors, encoders, decoders and high-performance power components for industry-leading camera object detection and classification applications.

Applications

Object Detection

LIDAR estimation techniques measure distance from the system to the object of interest. High resolution RADAR determines if an object can be safely driven over or under.

Object Tracking

Smart tracking algorithms are used when the RADAR signal to noise ratio is high, to not only track an object, but predict its trajectory.

Collision Avoidance

LIDAR for depth perception of objects in the environment. RADAR for automated emergency braking and rear cross traffic alert.

Parking Assistance

Spatial resolution of multichannel short-range LIDAR solutions detect distance. Ultralow phase noise and high bandwidth for RADAR identifies stationary and moving objects.

Blind Spot Detection

Multichannel LIDAR solutions designed into side view mirrors.

Dynamic Suspension Control

LIDAR evaluates the contour of the road ahead and signals to dynamically adjust suspension.

Adaptive Cruise Control

RADAR and LIDAR solutions help maintain a safe distance by signaling the need to adjust speed relative to other vehicles on the highway.

Emergency Braking Systems

Multichannel LIDAR solution’s high fidelity depth measurement data alerts a vehicle to apply appropriate brake pressure.

Door Open Assist

RADAR pointing toward the rear of the vehicle constantly monitors for oncoming traffic and cyclists, as well as supports vehicle occupants when opening the door.

Autonomous Vehicle Perception Sensing Products

ADI’s signal processing solutions directly enhance the capabilities of a pulsed ToF and CW LIDAR systems. ADI’s product portfolio offers low noise transimpedance amplifiers, DACs and comparators, high speed multichannel ADC’s in the GSPS range, IQ demodulators, and a host of Power by Linear products for sensitive power management architectures.

Сигнальные цепочки

(6)

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RADAR Components (8)

Оценочные платы

LIDAR Components (10)