The future car market has unlimited possible. The current automotive electronics has entered a high-speed development period. Whether it is stronger power, more energy-saving and environmentally friendly electric vehicle programs, or a richer multimedia system, more advanced advanced driving assistance systems The automotive market has too many explosive potential, and the short-range radar (SRR) application solution based on AWR1642 Evaluation Module (EVM) provides the basis of ADAS.
characteristic
Single chip FMCW radio detection and ranging (Radar) for SRR applications
Objects (such as automotive and trucks) at the distance of the distance are detected, the range resolution is 35 cm; the object of the object can be detected, the resolution is 4.3 cm.
Cluster and track detected outputs
Antenna field of view ± 60 °, angular resolution is about 15 °
Source code for fast Fourier Transform (FFT) provided by MMWave Software Development Kit (SDK)
Hardware system block diagram
AWR1642
The AWR1642 device is an integrated single-chip FMCW radar sensor that is running in the 76 to 81GHz band. The device is constructed using a low power 45nm RFCMOS process in Ti and implements unprecedented integration in a minimal package. The AWR1642 is an ideal solution for low power, self-monitoring, and hyperdeasive radar systems in the automotive sector.
The AWR1642 device is an integrated single-chip FMCW radar sensor that is running in the 76 to 81GHz band. The device is constructed using a low power 45nm RFCMOS process in Ti and implements unprecedented integration in a minimal package. The AWR1642 is an ideal solution for low power, self-monitoring, and hyperdeasive radar systems in the automotive sector. The AWR1642 device is a self-contained FMCW radar sensor single-chip solution that simplifies a car radar sensor in the 76 to 81 GHz band. It constructs a low-power 45nm RFCMOS process on Ti, thereby realizing a single piece of a built-in PLL and analog-to-digital converter implementation 2TX, 4RX system. It integrates a DSP subsystem containing TI high-performance C674x DSP for radar signal processing. The device contains an ARM R4F-based processor subsystem that is responsible for radio configuration, control, and calibration. Simple programming model changes support various sensors (close distance, medium distance and long distance), and can perform dynamically reconfiguration to implement multi-mode sensors.
AWR1642 function block diagram
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This design allows the estimation and tracking position (in the azimuth plane) and the speed of the object in its field of view, the maximum can be up to 80 meters, and the travel speed can reach 90 km / h. AWR1642 is configured as multi-mode radar, which means that when it tracks 80 meters of objects, it can also generate rich objects in 20 meters, which two distances from far away vehicles and smaller obstacles Can be found.
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Introduction to each interface
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The above picture visualization tool reacts:
XY scatter plot
Licensed objects and / or points detected and tracking
The legend on the right means the importance of various symbols
The pink line can be interpreted as the free space around the radar, which is subject to the object of the object in the scene.
Doppler range
Indicates the speed of tracking objects
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