1 / 9

Digital FX correlator

Digital FX correlator. Samuel Tun. FASR Subsystem Testbed (FST). 1-9 GHz in 500 MHz band recorded at 1 GS/s from each antenna. Correlation carried out offline via FOCIS (Z. Liu) . CASPER Group Software and Hardware. ROACH I. IBOB. Xilinx Virtex 5 SX95T FPGA - 244 36-kbit BlockRAMs

lewis
Download Presentation

Digital FX correlator

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Digital FX correlator Samuel Tun

  2. FASR Subsystem Testbed (FST) 1-9 GHz in 500 MHz band recorded at 1 GS/s from each antenna. Correlation carried out offline via FOCIS (Z. Liu)

  3. CASPER Group Software and Hardware ROACH I IBOB • Xilinx Virtex 5 SX95T FPGA • - 244 36-kbit BlockRAMs • - 4x CX4 10Gbps connectors - Xilinx Virtex-II Pro 2VP50 FPGA - 232 18-kbit BlockRAMs - 2x CX4 10Gbps connectors

  4. Current Design: f-engine on ROACH

  5. Current Design: f-engine on ROACH (cont.)

  6. Current Design: x-engine on IBOB

  7. ROACH II

  8. ROACH II ROACH I • Xilinx Virtex 6 SX475T FPGA • - 7640 Kb max distributed memory • - 1064 36-kb BlockRAMs • - Up to 8 CX4 10Gbps connectors • Xilinx Virtex 5 SX95T FPGA • - 1520 Kb max distributed memory • - 244 36-kb BlockRAMs • - 4 CX4 10Gbps connectors

  9. Salient Issues • Time delay implementation, including synchronized input from tables to register, fine delay implementation, and input flow disruptions • Power/power2 synchronization to FFT output, or where to put RFI excision logic. • Design on Fabric issues should not exist on ROACH II, although design optimization will be a goal of my visit to the CASPER group.

More Related