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US 12,468,025 B2Granted
Systems and methods for doppler-enhanced radar tracking
AssigneeOculii Corp.
InventorsLang Hong, Steven Hong
Life of this patent
Estimating the term…
Abstract
A method for Doppler-enhanced radar tracking includes: receiving a reflected probe signal at a radar array; calculating a target range from the reflected probe signal; calculating a first target angle from the reflected probe signal; calculating a target composite angle from the reflected probe signal; and calculating a three-dimensional position of the tracking target relative to the radar array from the target range, first target angle, and target composite angle.
Claims20
A method for Doppler-enhanced radar tracking comprising the steps of:
- transmitting a probe signal from a radar array;
- generating reflected data in response to a reflection of said probe signal from a target received by said radar array;
- determining (i) a range of said target from said radar array and (ii) Doppler shift information each in response to said reflected data;
- and
- determining an actual target composite angle in response to (i) said reflected data and (ii) said Doppler shift information, wherein
- (a) said actual target composite angle is an angle between a target vector from said radar array to said target and a composite reference vector, and
- (b) determining said Doppler shift information comprises
- (I) determining predicted target composite angles, and
- (II) determining respective frequency domain outputs for each of said predicted target composite angles.
6 more elements
An apparatus comprising:
- a radar array configured to (i) transmit a probe signal from said radar array and (ii) receive a reflection of said probe signal from a target;
- and
- a processor configured to (i) receive egovelocity data, (ii) generate reflected data in response to said reflection of said probe signal from said target, (iii) determine Doppler shift information each in response to said reflected data, and (iv) determine an actual target composite angle in response to (a) said egovelocity data and (b) said Doppler shift information, wherein
- (a) said actual target composite angle is an angle between a target vector from said radar array to said target and a composite reference vector,
- (b) determining said Doppler shift information comprises
- (I) determining predicted target composite angles, and
- (II) determining a Fourier transform based on a respective scaled time variable for each of said predicted target composite angles, and
- (c) said respective scaled time variable is determined based on said predicted target composite angles.
5 more elements
An apparatus comprising:
- a radar array configured to (i) transmit a probe signal from said radar array and (ii) receive a reflection of said probe signal from a target;
- and
- a processor configured to (i) generate reflected data in response to said reflection of said probe signal from said target, (ii) determine (a) a range of said target from said radar array and (b) Doppler shift information each in response to said reflected data, and (iii) determine an actual target composite angle in response to (a) said reflected data and (b) said Doppler shift information, wherein
- (a) said actual target composite angle is an angle between a target vector from said radar array to said target and a composite reference vector, and
- (b) determining said Doppler shift information comprises
- (I) determining predicted target composite angles, and
- (II) determining respective frequency domain outputs for each of said predicted target composite angles.
4 more elements
Dependencies are inferred from the claim text.