System and method for position determination by impulse radio
First Claim
Patent Images
1. A method for producing a first time base for a first ultra wideband radio, said method comprising the steps of:
- a. obtaining a time reference signal;
b. phase locking a clock signal to said time reference signal to produce said first time base; and
c. counting down said clock signal using a counter to produce said first time base, wherein said counter is a binary counter and has a modulo count equal to a modulo repeat length of a code corresponding to a ultra wideband signal.
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Abstract
A method for producing a first time base for a first ultra wideband radio obtains a time reference signal and phase locks a clock signal to the time reference signal The clock signal is counted down using a counter to produce the first time base. The counter is a binary counter that has a modulo count equal to a modulo repeat length of a code corresponding to a ultra wideband signal.
21 Citations
20 Claims
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1. A method for producing a first time base for a first ultra wideband radio, said method comprising the steps of:
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a. obtaining a time reference signal; b. phase locking a clock signal to said time reference signal to produce said first time base; and c. counting down said clock signal using a counter to produce said first time base, wherein said counter is a binary counter and has a modulo count equal to a modulo repeat length of a code corresponding to a ultra wideband signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20)
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11. A system for producing a first time base for a first ultra wideband radio, said system comprising:
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a time reference signal; a clock signal, said clock signal phase locked to said time reference signal to produce said first time base; and a counter used to count down said clock signal to produce said first time base, wherein said counter is a binary counter and has a modulo count equal to a modulo repeat length of a code corresponding to a ultra wideband signal. - View Dependent Claims (12, 13, 14, 16, 17, 18, 19)
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Specification