| タイトル | Implementation of a Digital Signal Processing Subsystem for a Long Wavelength Array Station |
| 著者（英） | Sigman, Elliott; D'Addario, Larry; Wang, Douglas; Soriano, Melissa; Navarro, Robert |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 2011-03-05 |
| 言語 | eng |
| 内容記述 | This paper describes the implementation of a Digital Signal Processing (DP) subsystem for a single Long Wavelength Array (LWA) station.12 The LWA is a radio telescope that will consist of many phased array stations. Each LWA station consists of 256 pairs of dipole-like antennas operating over the 10-88 MHz frequency range. The Digital Signal Processing subsystem digitizes up to 260 dual-polarization signals at 196 MHz from the LWA Analog Receiver, adjusts the delay and amplitude of each signal, and forms four independent beams. Coarse delay is implemented using a first-in-first-out buffer and fine delay is implemented using a finite impulse response filter. Amplitude adjustment and polarization corrections are implemented using a 2x2 matrix multiplication |
| NASA分類 | Communications and Radar |
| レポートNO | IEEEAC Paper 1525 |
| 権利 | Copyright |
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