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2. Collision avoidance system - Wikipedia

   en.wikipedia.org/wiki/Collision_avoidance_system

   Toyota's system, branded "Toyota Safety Sense" or "Lexus Safety System", is a radar-based system that uses a forward-facing millimeter-wave radar. When the system determines that a frontal collision is unavoidable, it preemptively tightens the seat belts , removing any slack, and pre-charges the brakes using brake assist to give the driver ...

3. Mmwave sensing - Wikipedia

   en.wikipedia.org/wiki/Mmwave_sensing

   Millimeter wave (mmWave) sensing is a non-contact system of using mmWave radar sensors to measure movement, acceleration, and angles as small as a fraction of a millimeter. [1] This system requires a mmWave radar sensor to transmit and receive pulses of millimeter electromagnetic wave energy, detecting targets and motion from the reflections it ...

4. Wave radar - Wikipedia

   en.wikipedia.org/wiki/Wave_radar

   The marine navigation radar operates in low grazing angle mode and wind generated surface ripple must be present. The marine navigation radar is non-coherent and is a typical example of an indirect wave sensor, because there is no direct relation between wave height and radar back-scatter modulation amplitude.

5. Toyota Corolla (E140) - Wikipedia

   en.wikipedia.org/wiki/Toyota_Corolla_(E140)

   Ultrasonic sensors installed on the front of the vehicle detect other parked vehicles and, based on the results, estimate the physical dimensions of a vacant parking space and set the target parking position. [7] The Corolla Axio introduced a Pre-Crash Safety System that uses millimetre-wave radar.

6. Continuous-wave radar - Wikipedia

   en.wikipedia.org/wiki/Continuous-wave_radar

   Continuous-wave radar (CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted and then received from any reflecting objects. [1] Individual objects can be detected using the Doppler effect , which causes the received signal to have a different frequency from the transmitted signal ...

7. Radar - Wikipedia

   en.wikipedia.org/wiki/Radar

   Radar is a system that uses radio waves to determine the distance (), direction (azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method [1] used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain.

8. AOL Mail

   mail.aol.com/d?reason=invalid_cred

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. Cooperative Adaptive Cruise Control - Wikipedia

   en.wikipedia.org/wiki/Cooperative_Adaptive...

   CACC utilizes vehicle-to-vehicle communications so that the vehicle has information not just on the vehicle immediately in front (through sensors), but also on a leading vehicle or vehicles further in front, through vehicle-to-vehicle communications of key parameters such as position, velocity, acceleration.