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Apparatus and method for sampling and reconstruction of wide bandwidth signals below Nyquist rate

Patent image
ARL

A method and system of reconstructing data signals from one of incomplete measurements comprising a receiver for receiving data signals, an ADC system operatively connected to the receiver that digitizes the received data signal at a slower rate than the Nyquist rate to obtain sparse measurements; first and second dictionaries comprising a plurality of time shifted responses recovered from the data signal; the first dictionary comprising time shifted versions of the previously observed data signals which are sampled at or above the Nyquist minimum sample rate; the second dictionary comprising time shifted versions are sampled below the Nyquist minimum, and at least one processor for reconstruction of the waveform signals by transforming the sub-Nyquist digitized output using the first and second dictionaries to produce the data signal.

Inventors: 
Nguyen, Lam Huy; Tran, Trac D.
Patent Number: 
Technical domain: 
Sensors and Measurement
FIle Date: 
2012-03-09
Grant Date: 
2014-10-14
Grant time: 
949 days
Grant time percentile rank: 
17
Claim count percentile rank: 
6
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY