Automotive Radar Network Based On 77GHz FMCW Sensors

Automotive Radar Network Based On 77GHz FMCW Sensors 

As a result of the FMCW waveform with four individual chirp signals, a proper detection process results in four detected beat frequencies /c,s per point target and sensor. In total a single target, detected by the 

Range-Velocity Estimation. Each measured beat frequency con- 

Each sensor of the radar network has an individual position behind the front bumper. Therefore, each sensor will calculate individual values for target range and velocity based on the four measured beat frequencies, equation 8, inside the FMCW waveform. The measurement result is described by an eight-element parameter vector. 

A set of linear equations can now be derived which describes the relation between 16 measured beat frequencies and sensor specific target range and velocity parameters. 

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