Automotive RADAR Adoption—An Overview
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Transcript of Automotive RADAR Adoption—An Overview
Automotive RADAR Adoption
An Overview
Ram MirwaniDirector, Global Strategic Accounts
NI AWR Group
National Instruments
Topics
Automotive RADAR
Trends for Automotive RADAR
Overview of RADAR
• RADAR = radio detection and ranging
• Radar is an electromagnetic system for the detection and
range of objects
• Where the reflection of the transmitted waveform is used for
detection and range
• And its range (R) is determined by the equation
/2
out R c
back R c 2R out back R c
2R R c
Transmit Pulse
Receive Pulse
Automotive RADAR
• FMCW (Frequency Modulated Continuous Wave)
Frequency of Tx signal is modulated in a linear fashion
Frequency difference (Δf) of reflected signal based on range
Long, Mid, and Short Range RADAR (LRR, MRR, SRR)
Image from www.Altera.com
Automotive RADAR Use Cases
Adaptive Cruise Control (ACC)
Blind Spot Detection (BSD)
Collision Mitigation (CM)
Lane Change Assist (LCA)
Advanced Driver
Assistance Systems
(ADAS)
Trends in Automotive RADAR
• Focus on Safety
360 degrees vehicle surveillance
Object identification/distinction
Rear-end Crash Avoidance
CAR2X (Car 2 Car and Car 2 Infrastructure Communication)
Image from http://www.wykop.pl/link/2349196//
Trends in Automotive RADAR
• Adoption of 77- 81GHz
More reliable and more accurate
Greater capability to distinguish objects with high bandwidth
Smaller footprint (multi mode, multi range)
Image from safecarnews.com
Trends in Automotive RADAR• Autonomous Drive Vehicles
From “Assisted” to “Autonomous”
Sensor Validation and Cross-Check
Sensor Control Unit – RADAR, CAMERA, LIDAR, Ultrasonic
Object identification and Action – Software driven architecture
Image from http://articles.sae.org/10794/
Trends in Automotive RADAR
“Essentially, this front end processing processes the –
possibly multiple – incoming FMCW analog channels to
a single digital stream of azimuth/range/velocity tuples.
This data flows into more CPU cores where software,
possibly supported by additional accelerators, attempts,
to infer the presence, location, and nature surrounding
the vehicle.”
- Ralf Reuter
RADAR Systems Engineer at Freescale Semiconductor
From “Cutting Through the Fog- The road ahead for vehicular radar”,
Ron Wilson, Altera Corporation, 2012
Low-Cost Modular Measurement
and Control Hardware
Productive Software
Development Tools
Highly Integrated
Systems Platforms
Graphical system design combines graphical
programming software with modular hardware,
leveraging the latest technologies
National Instruments in Automotive RADAR
Enable Concurrent Design and Test FlowLink Research to Deployment for Automotive RADAR
DESIGN
VALIDATE
TEST
Summary
Image from http://www.sensethecar.com/35877/