Available Technology

Architecture for an Intermediate Frequency Digital Downconversion and Data Distribution Network for Deep Space Network Downlink Receivers

For this architecture, IF data from multiple antennas is digitized using Analog to Digital Converters at a rate of 1280 Msamples/second or greater. The digitized data is broken up into sub-bands using a Modified Discrete Fourier Transform Filterbank. The MDFT is a critically sampled filterbank that allows for near perfect reconstruction. The critically sampled property provides for optimal use of limited data bandwidth resources.
Internal Laboratory Ref #: 
NPO-49686-1
Patent Status: 
U.S. Government Purpose Release
Agency
NASA
Region
Far West
State: 
California
Lab Representatives
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