METHOD FOR THE RECOGNITION OF A MOVING PEDESTRIAN
First Claim
1. A method for the recognition of a moving pedestrian by means of a radar sensor system, whereintransmitting a primary radar signal into an observation space;
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processing the secondary radar signal, wherein processing the secondary radar signal includes the steps;
(i) generating a Micro-Doppler spectrogram of the secondary radar signal;
(ii) determining, based on the Micro-Doppler spectrogram, an observed bulk speed of the moving pedestrian, wherein the observed bulk speed corresponds to a speed component that is related to the pedestrian'"'"'s torso and is oriented along a line of sight extending from the moving pedestrian to the radar sensor system;
(iii) determining, based on the Micro-Doppler spectrogram, at least one gait cycle parameter of the moving pedestrian; and
(iv) determining, based on the determined observed bulk speed and the determined gait cycle parameter, an illumination angle between a moving direction of the moving pedestrian and the line of sight.
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Accused Products
Abstract
A method for the recognition of a moving pedestrian by means of a radar sensor system includes the steps of transmitting a primary radar signal into an observation space and of receiving a secondary radar signal reflected by the moving pedestrian. The secondary radar signal is processed, wherein the processing of the secondary radar signal includes the steps of generating a Micro-Doppler spectro-gram of the secondary radar signal, determining, based on the Micro-Doppler spectrogram, an observed bulk speed of the moving pedestrian, determining, based on the Micro-Doppler spectrogram, at least one gait cycle parameter of the moving pedestrian and determining, based on the determined observed bulk speed and the determined gait cycle parameter, an illumination angle between a moving direction of the moving pedestrian and the line of sight.
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Citations
15 Claims
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1. A method for the recognition of a moving pedestrian by means of a radar sensor system, wherein
transmitting a primary radar signal into an observation space; - and
receiving a secondary radar signal reflected by the moving pedestrian; and processing the secondary radar signal, wherein processing the secondary radar signal includes the steps; (i) generating a Micro-Doppler spectrogram of the secondary radar signal; (ii) determining, based on the Micro-Doppler spectrogram, an observed bulk speed of the moving pedestrian, wherein the observed bulk speed corresponds to a speed component that is related to the pedestrian'"'"'s torso and is oriented along a line of sight extending from the moving pedestrian to the radar sensor system; (iii) determining, based on the Micro-Doppler spectrogram, at least one gait cycle parameter of the moving pedestrian; and (iv) determining, based on the determined observed bulk speed and the determined gait cycle parameter, an illumination angle between a moving direction of the moving pedestrian and the line of sight. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification