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Signal processing applications of massively parallel charge domain computing devices
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1999 |
| Description | The present invention is embodied in a charge coupled device (CCD)/charge injection device (CID) architecture capable of performing a Fourier transform by simultaneous matrix vector multiplication (MVM) operations in respective plural CCD/CID arrays in parallel in O(1) steps. For example, in one embodiment, a first CCD/CID array stores charge packets representing a first matrix operator based upon permutations of a Hartley transform and computes the Fourier transform of an incoming vector. A second CCD/CID array stores charge packets representing a second matrix operator based upon different permutations of a Hartley transform and computes the Fourier transform of an incoming vector. The incoming vector is applied to the inputs of the two CCD/CID arrays simultaneously, and the real and imaginary parts of the Fourier transform are produced simultaneously in the time required to perform a single MVM operation in a CCD/CID array. |
| File Size | 1059365 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080006936 |
| Archival Resource Key | ark:/13960/t7vm96665 |
| Language | English |
| Publisher Date | 1999-09-14 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Charge Coupled Devices Patents Fourier Transformation Signal Processing Vectors Mathematics Massively Parallel Processors Charge Injection Devices Parallel Processing Computers Matrices Mathematics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
