Correlator

To obtain copies of a memo, contact the NRAO Library.

Memo Cross Ref. Author Title Date
1 Ewing Correlator Memo Series 83/09
2 Ewing VLBA Organization 8309
3 Peterson VLSI Project Status 8310
4 Ewing VLBA Correlator Memorandum 8311
5 Ewing VLBA Correlator Meeting Schedule 8311
6 Ewing Minutes-Local Group Meeting 11/83 8311
7 Ewing Minutes-Local Group Meeting 12/83 8312
8 Rayhrer Recording with/without Data-Gaps 8312
9 Rogers Ch. VII Correlator System-review 8312
10 Kellermann VLBA Volume III-comments 8312
11 Walker Comments on Current Draft-Vol. III 8312
12 Ewing Minutes-Correlator Group meeting 8401
13 Ewing Decisions to be made 8401
14 Ewing Minutes-Correlator Group meeting 8401
15 Rayhrer Recording with Error-Correction 8401
16 Ewing VLBA Project Book 8401
17 Rayhrer Minutes-Correlator Group meeting 8402
18 Main 334 Ewing Lobe Rotator Options 8402
19 Rogers Continuum SNR 8401
20 Main 329 Clark Lobe Rotator at the antenna 8402
21 Main 338 Ewing Minutes-Correlator Group meeting 8403
22 Haystack Fractional-Bit Correction Algo. 8407
23 Ewing Status of JPL VLSI Project 8407
24 Ewing Alternate Schemes for VLSI Chip 8407
25 Wilson Correlator Chip-Australia Tele. 8407
26 Escoffier Correlator Architecture 8408
27 Acq 19 Rogers Suggested DPS-Correlator Interface 8408
28 Ewing Microprocessor Accumulators 8409
29 Rayhrer DPS/Correlator Interface 8409
30 Ewing The Global Bus 8410
31 D'Addario Accumulators and Prescalers 8410
32 Ewing Register-less readout&per-station 8411
33 Whitney Archiving of Correlator Data 8411
34 Ewing Data Archiving 8411
35 Pearson VLBA Correlator-Review of Block II 8501
36 Ewing VLSI Technology Report 8501
37 Wilson A T Correlator Chip 8501
38 Ewing Corr. Conceptual Block Diagram 8502
39 Ewing Hierarchical Block Diagrams 8503
40 Romney Per-Station Phase Computation 8504
41 Ewing Architectural Design - VLBA Corr 8504
42 acq 39 Romney DPS/Correlator Control Interface 8504
43 Fort ECA input connections 8505
44 Fort Per Station Delay & Phase Accuracy 8505
45 NFRA European VLBI Data Processing 8505
46 Ewing Meeting with Austek, 6 June 8506
47 Ewing Correlation Option List 8506
48 Ewing Pulsar Window Generator (rev.) 8507
49 Ewing Phase/Delay Specification 8507
50 Ewing Revised Phase/Delay Specification 8507
51 Kator The Data Concentrator 8507
52 Kator Subsystem Estimates 8507
53 Kator Computing Load for SMP 8507
54 CIT Response to NRAO Review of Corr 8507
55 Fort/Ewing Signal Switching 8510
56 Ewing Bandwidth Multiplication and Corr 8602
57 Ewing XCELL Tricks-4 bit multiplication 8603
58 Ewing Austek Quote for XCELL Ics 8605
59 Romney Update on Correlator Group 8605
60 Romney Introduction to Spectral-Domain 8605
61 Escoffier VLBA Correlator Block Diagram 8605
62 Escoffier VLBA Correlator Hardware Design 8605
63 Greenberg Station-based Lobe Rotator in Corr 8605
64 Benson On-line Computers for FX Corr 8605
65 Ewing Hybrid FFT Correlator Design 8605
66 Granlund O'Sullivan's Zero-Padding 8606
67 Rogers FX Correlator & O'Sullivan Zero 8606
68 Rogers Clipping Correction & Fringe Rot 8606
69 Clark Remarks on SNR floating point FX 8607
70 Clark Req Accuracy of Roots of Unity 8607
71 Escoffier VLBA Correlator Hardware Topics 8607
72 Escoffier VLBA Correlator Hardware Design 8607
73 Ewing CSIRO/Austek FFT Chip 8608
74 Benson Computer Simulations of FX Arch 8611
75 Schwab Two-Bit Correlators: Misc Results 8611
76 Benson Simulations of Digital Rotators 8701
77 Benson Tests of VLBA FX-Style FFT 8701
78 Schwab Data Windowing & the FX Correlator 8702
79 Romney FX Correlator Workshop 8702
80 Romney Spectral-vs. Lag-Domain Correlation 8702
81 Whitney Design for a Large VLBI Correlator 8702
82 Main 593 Granlund VLBA Fringe Phasing Error 8702
83 Romney Multi-Level Fringe Rotation 8702
84 Escoffier VLBA Correlator Hardware Simulator 8704
85 Main 598 Thompson Periodic Signal Errors & FX Corr 8705
86 Escoffier VLBA Correlator Cost Estimate 8706
87 Escoffier VLBA Correlator ASIC Chip Spec 8707
88 Escoffier VLBA Correlator Playback Interface 8709
89 Escoffier An Overview of VLBA Correlator 8709
90 Escoffier Correlator Operational Cycles 8709
91 Escoffier The FFT and Cross Multiplier System 8710
92 Benson Simulation Results for VLBA Corr 8710
93 Main 634 Wells Workstations for Correlator Software 8807
94 Romney Mark 3 Compatibility of VLBA Corr 8812
95 Wells,etal Software Architect for VLBA Corr 8909
96 Main 662 Romney VLBA Correlator Operations Layout 9004
97 Romney VLBA Correlator Power Requirements 9004
98 Wells Correlator Software Status 9007
99 Wells Corr. Software Status, Sept. 1990 9009
100 Wells Corr. Software Status, Nov. 1990 9010
101 Wells Corr. Software Status, Jan. 1991 9101
102 Elec 14 Ruff Layout of VLBA Tape Drives at AOC 9102
103 Wells Corr.Software Status, March, 1991 9103
104 Escoffier End to End Correlator StationSpectra Test Results 9204
105 Bagri Effect of Sampler Threshold Errors on Quantization Correction 9304
105A Bagri REVISED (see title above) 9307
106 Kogan Effect of Threshold Errors on the Response of FX Correlator 9404
107 Clark Polynomials for Use in the VLBACorrelator 9501
108 Diamond FITS Format for Interferometry data Interchange 9706

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