Time-of-flight measurement using pulse sequences
First Claim
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1. A method of determining a time-of-flight of a device under test, comprising the steps of:
- detecting a returning signal returning from the device under test in response to a probing signal comprising a sequence of pulses according to a first code sequence, and deriving a second code sequence from the detected returning signal, determining a correlation function by correlating the first code sequence and the second code sequence and identifying a main peak of the correlation function, and determining a time position of the main peak.
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Abstract
A method for determining the time-of-flight of a device under test, wherein a return signal returning from the device under test in response to the probing signal comprising a sequence of pulses according to a first code sequence is detected and a second code sequence from the detected return signal is derived, and a correlation function is determined by correlating the first code sequence and the second code sequence, a main peak is identified, a time position of the main peak is determined and the time-of-flight is derived from the time position.
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Citations
12 Claims
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1. A method of determining a time-of-flight of a device under test, comprising the steps of:
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detecting a returning signal returning from the device under test in response to a probing signal comprising a sequence of pulses according to a first code sequence, and deriving a second code sequence from the detected returning signal, determining a correlation function by correlating the first code sequence and the second code sequence and identifying a main peak of the correlation function, and determining a time position of the main peak. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A measurement system for determining the time-of-flight of a device under test, comprising:
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a signal detector adapted for detecting a returning signal returning from the device under test in response to a probing signal comprising a sequence of pulses according to a first code sequence and for deriving a second code sequence from the detected returning signal, and a signal processor adapted for determining a correlation function by correlating the first code sequence and the second code sequence, identifying a main peak, determining a time position of the main peak and deriving the time-of-flight from the time position of the main peak.
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Specification