Back-up aid indicator using FMCW chirp signal or a time domain pulse signal
First Claim
Patent Images
1. A back-up aid indication system comprising:
- a sensor for providing detection coverage in a predetermined coverage zone adjacent to a vehicle, the sensor comprising a transmit antenna including at least one subarray with multiple radiators and adapted for transmitting an RF signal having a quasi-collimated antenna pattern in a near field; and
a waveform generator which selectively provides one of a frequency modulated continuous wave FMCW Chirp signal and a time domain pulse signal as the transmitted RF signal.
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Abstract
A back-up aid indication system includes a sensor for providing detection coverage in a predetermined coverage zone behind a vehicle. The sensor includes a transmit antenna adapted for transmitting an RF signal having a quasi-collimated antenna pattern in a near field. The system further includes a waveform generator which selectively provides one of a frequency modulated continuous wave FMCW Chirp signal and a pulse waveform signal as the transmitted RF signal.
79 Citations
31 Claims
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1. A back-up aid indication system comprising:
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a sensor for providing detection coverage in a predetermined coverage zone adjacent to a vehicle, the sensor comprising a transmit antenna including at least one subarray with multiple radiators and adapted for transmitting an RF signal having a quasi-collimated antenna pattern in a near field; and
a waveform generator which selectively provides one of a frequency modulated continuous wave FMCW Chirp signal and a time domain pulse signal as the transmitted RF signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 23)
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20. A back-up aid indication system comprising:
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a sensor for providing detection coverage in a predetermined coverage zone adjacent to a vehicle, the sensor comprising a transmit antenna adapted for transmitting an RF signal having a quasi-collimated antenna pattern in a near field; and
a waveform generator which selectively provides one of a frequency modulated continuous wave FMCW Chirp signal and a time domain pulse signal as the transmitted RF signal wherein the transmit antenna comprises a flexible waveguide. - View Dependent Claims (21, 22)
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24. A method for alerting an operator of a vehicle to the presence of a object comprising:
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selectively providing one of a FMCW Chirp signal and a time domain pulse signal;
transmitting the selected signal;
providing an antenna including at least one subarray with multiple antenna elements and having a quasi-collimated antenna pattern in the near field;
detecting the presence the object proximate to the vehicle; and
providing an indication of the presence of the object to the operator of the vehicle. - View Dependent Claims (25, 26, 27)
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28. An external vehicle antenna comprising:
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a housing disposed across a bumper fascia;
a plurality of flexible waveguide channels disposed within the housing each having a pair of inner surfaces and a slot surface; and
at least one coax probe coupled to at least one of the plurality of flexible waveguide channels. - View Dependent Claims (29, 30, 31)
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Specification