Method and system for fast acquisition of ultra-wideband signals
First Claim
1. A method for detecting an impulse radio signal, said method comprising the steps of:
- receiving the impulse radio signal;
obtaining a template pulse train shifted by an offset; and
substantial match between the template pulse train and the received impulse radio signal.
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Accused Products
Abstract
A system and method are provided that can detect any part of a multipath impulse radio signal. More specifically, the method compares a template pulse train and the multipath impulse radio signal to obtain a comparison result. The system performs a threshold check on the comparison result. If the comparison result passes the threshold check, the system locks onto any part of the multipath impulse radio signal including a direct path part and at least one multipath reflection part. The system may also perform a quick check, a synchronization check, and/or a command check of the multipath impulse radio signal.
11 Citations
24 Claims
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1. A method for detecting an impulse radio signal, said method comprising the steps of:
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receiving the impulse radio signal;
obtaining a template pulse train shifted by an offset; and
substantial match between the template pulse train and the received impulse radio signal. - View Dependent Claims (2, 3, 4)
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5. A method for detecting an ultra wideband signal, comprising:
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obtaining a template signal shifted by an offset;
obtaining a received ultra wideband signal;
comparing the template signal and the received ultra wideband signal to obtain a comparison result;
performing a threshold check on the comparison result; and
locking on the received ultra wideband signal if the comparison result passes the threshold check. - View Dependent Claims (6, 7, 8, 9)
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10. A receiver for detecting an ultra wideband signal, comprising:
a controller and lock loop operable to;
compare a generated template signal and the ultra wideband signal;
lock on the ultra wideband signal if the comparison result passes a threshold check; and
if the comparison result fails the threshold check, repeat the comparing step using a generated shifted template signal shifted by an offset in accordance with a scanning process and the ultra wideband signal. - View Dependent Claims (11, 12)
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13. A method for detecting an ultra wideband signal, comprising:
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obtaining a template signal shifted by an offset;
obtaining a received ultra wideband signal; and
performing a quick check using the template signal and the received ultra wideband signal. - View Dependent Claims (14, 15, 16)
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17. A method for detecting an ultra wideband signal, comprising:
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obtaining a received ultra wideband signal;
performing a synchronization check of the received ultra wideband signal; and
obtaining acquisition data comprising synchronization data and command data if the received ultra wideband signal passes the synchronization check. - View Dependent Claims (18, 19)
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20. A method for detecting an ultra wideband signal comprising:
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receiving the ultra wideband signal;
generating a template signal shifted by an offset; and
locking onto the ultra wideband signal when there is a correlation between the template signal and the received ultra wideband signal. - View Dependent Claims (21, 22, 23, 24)
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Specification