Patent ID: 7356100

Claim:
A method for estimating a channel impulse response in an ultra wide bandwidth (UWB) system comprising the steps of: generating a training sequence; modulating the training sequence at a chip rate to produce a modulated training sequence, the modulated training sequence being comprised of ultra wide bandwith radio pulses; generating a training signal comprised of a plurality of repetitions of the modulated training sequence; transmitting and receiving, via a channel, the training signal; sampling the received training signal, in parallel, with a set of correlators to obtain a plurality of samples, in which each correlator samples the received training signal at a sampling rate substantially slower than the chip rate, each correlator samples the received training signal at a different delay for each repetition of the modulated training sequence in the received training signal, and such that the plurality of samples spans a time interval corresponding to an impulse response of the channel at a resolution substantially equal to the chip rate; and estimating the impulse response of the channel over the time interval corresponding to the impulse response of the channel from the plurality of samples.