VLBA CORRELATOR MEMOS ---------------------------------------------------------------------------------------------------------------- Memo Series Cross Author Title Date No. Ref ----------------------------------------------------------------------------------------------------------------- 1corr Ewing Correlator Memo Series8309 2 corr Ewing VLBA Organization 8309 3 corr Peterson VLSI Project Status8310 4 corr Ewing VLBA Correlator Memorandum 8311 5 corr Ewing VLBA Correlator Meeting Schedule 8311 6 corr Ewing Minutes-Local Group Meeting 11/83 8311 7 corr Ewing Minutes-Local Group Meeting 12/83 8312 8 corr Rayhrer Recording with/without Data-Gaps 8312 9 corr Rogers Ch. VII Correlator System-review 8312 10 corcc 12 Kellermann VLBA Volume III-comments 8312 11 corrcc 15 Walker Comments on Current Draft-Vol. III 8312 12 corr Ewing Minutes-Correlator Group meeting8401 13 corrcc 27 Ewing Decisions to be made 8401 14 corr Ewing Minutes-Correlator Group meeting 8401 15 corr Rayhrer Recording with Error-Correction 8401 16 corr Ewing VLBA Project Book 8401 17 corr Rayhrer Minutes-Correlator Group meeting 8402 18 corr main 334 Ewing Lobe Rotator Options 8402 19 corr Rogers Continuum SNR 8401 20 corr main 329 Clark Lobe Rotator at the antenna 8402 21 corr main 338 Ewing Minutes-Correlator Group meeting 8403 22 corr Haystack Fractional-Bit Correction Algo. 8407 23 corr Ewing Status of JPL VLSI Project 8407 24 corr Ewing Alternate Schemes for VLSI Chip 8407 25 corr Wilson Correlator Chip-Australia Tele. 8407 26 corr Escoffier Correlator Architecture 8408 27 corr acq 19 Rogers Suggested DPS-Correlator Interface 8408 28 corr Ewing Microprocessor Accumulators 8409 29 corr Rayhrer DPS/Correlator Interface 8409 30 corr Ewing The Global Bus 8410 31 corr D'Addario Accumulators and Prescalers 8410 32 corr Ewing Register-less readout&per-station 8411 33 cor Whitney Archiving of Correlator Data 8411 34 cor Ewing Data Archiving 8411 35 crr Pearson VLBA Correlator-Review of Block II 8501 36 orr Ewing VLSI Technology Report 8501 37corr Wilson A T Correlator Chip 8501 3 corr Ewing Corr. Conceptual Block Diagram 8502 9 corr Ewing Hierarchical Block Diagrams 8503 40 corr Romney Per-Station Phase Computation 8504 ---------------------------------------------------------------------------------------------------------------- Memo Series Cross Author Title Date No. Ref ----------------------------------------------------------------------------------------------------------------- 41 corr Ewing Architectural Design - VLBA Corr 8504 42 corracq 39 Romney DPS/Correlator Control Interface 8504 43 corr Fort ECA input connections 8505 44 corr Fort Per Station Delay & Phase Accuracy 8505 45 corr NFRA European VLBI Data Processing 8505 46 corr Ewing Meeting with Austek, 6 June 8506 47 corr Ewing Correlation Option List 8506 48 corr Ewing Pulsar Window Generator (rev.) 8507 49 corr Ewing Phase/Delay Specification 8507 50 corr Ewing Revised Phase/Delay Specification 8507 51 corr Kator The Data Concentrator 8507 52 corr Kator Subsystem Estimates 8507 53 corr Kator Computing Load for SMP 8507 54 corr CIT Response to NRAO Review of Corr 8507 55 corr Fort/Ewing Signal Switching 8510 56 corr Ewing Bandwidth Multiplication and Corr 8602 57 corr Ewing XCELL Tricks-4 bit multiplication 8603 58 corr Ewing Austek Quote for XCELL Ics 8605 59 corr Romney Update on Correlator Group 8605 60 corr Romney Introduction to Spectral-Domain 8605 61 corr Escoffier VLBA Correlator Block Diagram 8605 62 corr Escoffier VLBA Correlator Hardware Design 8605 63 corr Greenberg Station-based Lobe Rotator in Corr 8605 64 corr Benson On-line Computers for FX Corr 8605 65 corr Ewing Hybrid FFT Correlator Design 8605 66 corr Granlund O'Sullivan's Zero-Padding 8606 67 corr Rogers FX Correlator & O'Sullivan Zero 8606 68 corr Rogers Clipping Correction & Fringe Rot 8606 69 corr Clark Remarks on SNR floating point FX 8607 70 corr Clark Req Accuracy of Roots of Unity 8607 71 corr Escoffier VLBA Correlator Hardware Topics 8607 72 corr Escoffier VLBA Correlator Hardware Design 8607 73 corr Ewing CSIRO/Austek FFT Chip 8608 74 corr Benson Computer Simulations of FX Arch 8611 75 corr Schwab Two-Bit Correlators: Misc Results 8611 76 Corr Benson Simulations of Digital Rotators 8701 77 Corr Benson Tests of VLBA FX-Style FFT 8701 78 Corr Schwab Data Windowing & the FX Correlator 8702 79 Corr Romney FX Correlator Workshop 8702 80 Corr Romney Spectral-vs. Lag-Domain Correlation 8702 81 Corr Whitney Design for a Large VLBI Correlator 8702 ---------------------------------------------------------------------------------------------------------------- Memo Series Cross Author Title Date No. Ref ----------------------------------------------------------------------------------------------------------------- 82 Corr Main 593 Granlund VLBA Fringe Phasing Error 8702 83 Corr Romney Multi-Level Fringe Rotation 8702 84 Corr Escoffier VLBA Correlator Hardware Simulator 8704 85 Corr Main 598 Thompson Periodic Signal Errors & FX Corr 8705 86 Corr Escoffier VLBA Correlator Cost Estimate 8706 87 Corr Escoffier VLBA Correlator ASIC Chip Spec 8707 88 Corr Escoffier VLBA Correlator Playback Interface 8709 89 Corr Escoffier An Overview of VLBA Correlator 8709 90 Corr Escoffier Correlator Operational Cycles 8709 91 Corr Escoffier The FFT and Cross Multiplier System 8710 92 Corr Benson Simulation Results for VLBA Corr 8710 93 Corr Main 634 Wells Workstations for Correlator Software 8807 94 Corr Romney Mark 3 Compatibility of VLBA Corr 8812 95 Corr Wells,etal Software Architect for VLBA Corr 8909 96 Corr Main 662 Romney VLBA Correlator Operations Layout 9004 97 Corr Romney VLBA Correlator Power Requirements 9004 98 Corr Wells Correlator Software Status 9007 99 Corr Wells Corr. Software Status, Sept. 1990 9009 100 Corr Wells Corr. Software Status, Nov. 1990 9010 101 Corr Wells Corr. Software Status, Jan. 1991 9101 102 Corr Elec 14 Ruff Layout of VLBA Tape Drives at AOC 9102 103 Corr Wells Corr.Software Status, March, 1991 9103 104 Corr Escoffier End to End Correlator StationSpectra Test Results 9204 105 Corr Bagri Effect of Sampler Threshold Errors on Quantization Correction 9304 105ACorr Bagri REVISED (see title above) 9307 106 Corr Kogan Effect of Threshold Errors on the Response of FX Correlator 9404 107 Corr Clark Polynomials for Use in the VLBA Correlator 9501 108 Corr Diamond FITS Format for Interferometry data Interchange 9706