VLA Expansion Project Memoranda 

There are a few guidelines for submitting memos. EVLA Memo Submission Guidelines.

No.     Title Author(s) Date
168pdfpsAssessing the Impact of Using Three Cryogenic Compressors on the Performance of the EVLAE. Momjian, S. Durand, R. Perley, J. Gregg  (NRAO)
04/06/2013
167pdf
Clock leakage into the EVLA baseband datastream
R.J. Sault, K.Sowinski (NRAO)
04/02/2013
166pdfpsComparison of the Performance of the 3-bit and 8-bit Samplers at C (4-8 GHz), X (8-12 GHz) and Ku (12-18 GHz) BandsE. Momjian, R. Perley (NRAO)
03/27/2013
165pdfps
The Impact of the New Thermal Gap Receiver Assembly on the Sensitivity of the EVLA at L-Band (1-2 GHz)
E. Momjian, R. Perley, R. Hayward (NRAO)
11/16/2012
164pdfps
Some comments on the W-projection algorithm
L. Kogan (NRAO)
10/08/2012
163pdf
Recirculation in WIDAR with phase serialization
R. J. Sault (NRAO)
09/11/2012
162pdfpsComparison of E and D configuration sensitivity when D configuration is tapered
L. Kogan, F. Owen (NRAO)
07/06/2012
161pdf
The Effects of Automated RFI Mitigation on Source
Intensity
J. Helmboldt (NRL)05/08/2012
160pdf
More WIDAR spectral dynamic range testsR.J. Sault (NRAO)05/02/2012
159pdf
Interferometric observations with self noise - An exampleR.J. Sault (NRAO)05/02/2012
158pdf
Transporter Axle Failures
J. Thunborg (NRAO)
03/27/2012
157pdf
Further investigation of low-level correlator artifacts:
Wobbles and splatter
R. J. Sault (NRAO)
03/25/2012
156pdf
Gain Distribution and Frequency Response of the T304 Input Stage
K. Morris (NRAO)
02/22/2012
155pdf
Dual-band Observation on the EVLA Utilizing the New Low-band Receiver and a Single Microwave Receiver
J. Jackson, C. Kutz (NRAO)
12/12/2011
154pdfpsCharacterization of the EVLA 1-2 GHz Intermediate Frequency Passband
K. Morris,  E. Momjian (NRAO)
10/12/2011
153pdf
ACU/Servo Upgrade StudyJ. Jackson (NRAO), G. W. Maglathlin (PFM Solutions)06/15/2011
152pdfpsCharacterizing the Sensitivity of the EVLA at L-bandE. Momjian, R. Perley (NRAO)
05/02/2011
151pdfpsEVLA Antenna Polarization at L, S, C,  and X BandsR. Perley,  B. Hayward (NRAO)
04/28/2011
150pdf
Photon Orbital Angular Momentum and Torque Metrics for Single Telescopes and InterferometersN. M. Elias II (NRAO)
04/07/2011
149pdfpsThe E-Configuration of EVLA: Constraints for Reconfigurating from A to E and from E to D configurationL. Kogan (NRAO)
  01/06/2011
148pdf
 WIDAR anti-aliasing and spectral dynamic range testR.J. Sault (NRAO)
  08/24/2010
147pdf
 Gain Expansion Measurements of the UX ConverterT. Cotter (NRAO)
10/26/2010
146pdfps RFI Mitigation in AIPS. The New Task UVRFIL. Kogan, F. Owen (NRAO)
06/02/2010
145pdf
 On Determining Visibilities from Correlation Products R. Perley (NRAO)
05/14/2010
144pdf
 EVLA Computer Use PlanF. Owen, J. Robnett (NRAO)
04/19/2010
143pdf
 Improving the frequency resolution of the default  atmospheric  opacity modelJ. Marvil (NRAO)
04/06/2010
142pdf
 Surveying Calibrators for the EVLAB. Hesman (NRAO)
02/18/2010
141pdfps EVLA Antenna Polarization at L, S, and C BandsR. Perley (NRAO)
02/17/2010
 140 pdf
 Design, Prototyping and Measurement of EVLA  Ku-Band  Feed Horn S. Srikanth (NRAO)
11/04/2009
139 pdf .ps  Plan for Imaging Algorithm Research and  Development S. Bhatnagar (NRAO)
11/04/2009
138 pdf
 Ideas and Guidelines for Rapid-Response   Observations  with  the EVLA E. Berger, A. Soderberg, M. Rupen, D.  Frail (NRAO)
09/08/2009
137  pdf  ps  Performance Tests of the EVLA K, Ka, and Q-Band  Receivers R. Perley, B. Hayward, B. Butler (NRAO)
08/04/2009
136 pdf ps  EVLA Measurements Close to the Sun: Elevated  System  Temperatures C. A. Whitiing, S.R. Spangler  (University of  Iowa) 07/28/2009
135 pdf ps  Further EVLA Polarizer Stability Measurements R.J. Sault,  R. Perley (NRAO)
06/25/2009
134 pdf
ps  EVLA Polarizer Stability at C and K Bands R. Perley, R.J.Sault (NRAO)
06/03/2009
133 pdf
 Parallelization of the off-line data processing  operations  using CASA   S. Bhatnagar, H. Ye, D. Schiebel (NRAO)
05/18/2009
132 pdf
 Report on the findings of the CASA Terabyte Initiative:  Single-node tests S. Bhatnagar (NRAO)
05/18/2009
131 pdf  ps  Measurements of C-Band EVLA Antenna  Polarization R. Perley (NRAO)
05/18/2009
130 pdf   The Effects of Fraction Truncation in Direct Digital Synthesis M. Luce, K. Morris (NRAO)
11/05/2008
129 pdf   Critical On-the_Sky Tests Using the WIDAR Prototype Correlator M. Rupen (NRAO)
10/20/2008
128 pdf ps Frequency-Variable Sensitivity of the EVLA at C-band E. Momjian,  R. Perley (NRAO)
09/04/2008
127 pdf ps On the Use of Correlation Coefficients for Determining Antenna Sensitivity R. Perley (NRAO)
08/21/2008
126 pdf ps Accuracy Requirements for EVLA Meteorological Measurements B. Butler,  R. Perley (NRAO)
08/04/2008
125 pdf ps Performance Tests of the EVLA Ka-Band Receiver R. Perley, B.  Hayward, B. Hesman (NRAO)
07/21/2008
124 pdf ps Wide-band Sensitivity of K- and Q-bands for the EVLA and VLA B. Hesman, R. Perley (NRAO)
05/14/2008
123 pdf ps The Effect of the 4-Band Dipoles on L, C, and X Band Performance R. Perley (NRAO)
05/09/2008
122 pdf ps EVLA Requirements for Postprocessing Algorithms and Computing F. Owen (NRAO)
01/07/2008
121 pdf
EVLA L-, K-, and Q-Band Focus Analysis: Version 1 B. Hesman, R. Perley, K.Sowinski (NRAO)
02/11/2008
120 pdf ps Some Thoughts on System Temperature Measurements for the EVLA R. Perley, K. Sowinski (NRAO)
01/14/2008
119 pdf ps Wide-Band Sensitivity and Frequency Coverage of the EVLA and VLA L-Band Receivers R. Perley, B. Hayward (NRAO)
01/17/2008
118 pdf   Ionospheric Effects and Imaging and Calibration of VLA Data W. D. Cotton (NRAO)
09/2007
117 pdf   Ionospheric Effects and Calibration of the VLA at 327 MHz W. D. Cotton, J. M. Uson (NRAO)
09/2007
116 pdf   Automatic CLEAN windowing W. D. Cotton (NRAO)
09/2007
115 pdf   Tools for Ionospheric Studies W. D. Cotton (NRAO)
09/2007
114 pdf   Image Pixelization and Dynamic Range W. D. Cotton, J. M. Uson (NRAO)
09/2007
113 pdf   Beam Squint and Stokes V on the VLA W. D. Cotton, J. M. Uson (NRAO)
09/2007
112 pdf   Design, Prototyping and Measurement of EVLA S-Band Feed Horn S. Srikanth, J. Ruff (NRAO)
08/17/2007
111 pdf   2 - 4 GHz End-to-End Signal Path Tests K. Morris, J. Jackson (NRAO)
07/19/2007
110 pdf ps The Effect of Amplifier Compression by Narrowband RFI on Radio Interferometer Imaging R.Perley, B. Hayward (NRAO)
04/25/2007
109 pdf ps Wideband Performance of the EVLA L-Band System R. Perley, B.  Hayward (NRAO)
02/14/2007
108 pdf   LO/IF Phase Dependence on Antenna Elevation K. Morris, J. Jackson, V. Dhawan (NRAO)
06/18/2007
107 pdf   Failure Pathology of EVLA WIDAR Correlator Support Systems B. Broilo, B. Carlson (NRAO)
10/18/2006
106 pdf ps RFI Emission Limits For Equipment at the VLA Site R. Perley, B. Brundage, D. Mertely (NRAO)
09/08/2006
105 pdf
Phase Coherence of the EVLA Radio Telescope S. Durand, J. Jackson, K. Morris (NRAO)
10/30/2006
104 pdf ps RFI Emission Goals on Internally-Coupled Signals R.Perley (NRAO)
08/25/2006
103 pdf ps Performance Tests of the EVLA K- and Q-Band Systems R. Perley, B. Hayward, B.  Butler, V. Dhawan (NRAO)
03/01/2006
102 pdf ps Monte Carlo Methods for Bayesian Image Reconstruction
and Analysis in Radio Astronomy
Urvashi R. V., (NMT- NRAO); T. J. Cornwell, (ATNF) 02/2006
101 pdf ps Multi Frequency Synthesis Imaging for the EVLA :
An initial investigation
Urvashi R.V.(NMT-NRAO), S. Myers, (NRAO)
T.J.Cornwell (ATNF)
04/12/2006
100 pdf ps Correction of Errors due to Antenna Power Patterns during Imaging S. Bhatnagar, K. Golap ( NRAO),  T. J. Cornwell, (ATNF) 02/23/2006
99 pdf ps RFI from VoIP phones V. Dhawan,  D. Mertely (NRAO)
01/23/2006
98 pdf ps The EVLA 8-Bit Digitizer Performance M. Revnell (NRAO)
11/07/2005
97 pdf ps The EVLA Transition Filter M. Revnell (NRAO) 11/07/2005
96 pdf ps Imaging at Wide Field of View for a Plane Array L. Kogan (NRAO)
09/20/2005
95 pdf   Design, Prototyping and Measurement of EVLA C-Band Feed Horn S. Srikanth, J. Ruff (NRAO),
A. J. Fenn, RF Array Systems Group, MIT/Lincoln Laboratory
08/09/2005
94 pdf   L/S/C Converter Plate Phase Stability Test II M. Johnson (NRAO)
05/12/2005
93 pdf ps Optimization of the LWA Antenna Station Configuration Minimizing Side Lobes L. Kogan, A. Cohen (NRAO)
05/04/2005
92 pdf   L/S/C Converter Plate Phase Stability Test M. Johnson (NRAO)
04/20/2005
91 pdf ps EVLA Phase III: A Major Step Toward the High Frequency SKA C. L. Carilli (NRAO)
04/21/2005
90 pdf ps Performance Tests of the EVLA C-Band Feed R. Perley,  B. Hayward (NRAO)
02/16/2005
89 pdf   The EVLA Outdoor Antenna Test Range Project
Fourth Quarter 2004, Progress Report
T. Jensen (NRAO)
02/08/2005
88 pdf   Quantization Noise A. R. Thompson,  D. T. Emerson (NRAO)
01/21/2005
87 pdf   Design, Prototyping and Measurement of EVLA L-Band Feed Horn S. Srikanth, J. Ruff,  E. Szpindor (NRAO)
03/22/2005
[Revised]
86 pdf   RFI excision in synthesis imaging without a reference signal T. J. Cornwell, R. Perley, K. Golap and S. Bhatnagar (NRAO)
12/08/2004
85 pdf ps Testing the EVLA L-Band Feed R. Perley, B. Hayward,  D. Mertely (NRAO)
11/16/2004
84 pdf ps Solving for the Antenna Based Pointing Errors S. Bhatnagar, T. J. Cornwell,  K. Golap (NRAO)
10/18/2004
83 pdf ps Quantization Loss for a Sloped Passband B. Carlson, R. Perley (NRAO)
08/30/2004
82 pdf ps Headroom Requirements for the EVLA R. Perley (NRAO)
08/30/2004
81 pdf   Azimuth Cable Wraps and E-Array Layout J. Ruff (NRAO)
07/13/2004
80 pdf
A Gain Slope Correction Scheme for the EVLA Receiver System R. Hayward, M. Morgan,  K. Saini (NRAO)
07/13/2004
79 pdf ps The Effect of Strong CW Signals on Interferometer Calibration, Closure, and Imaging R. Perley, B. Hayward (NRAO)
07/29/2004
78 pdf   EVLA Chamber Characterization Confirms PCB RFI Emissions Levels and Module Shielding Goals R. Ridgeway (NRAO)
06/10/2004
77 pdf   EVLA and SKA Computing Costs for Wide Field Imaging
(Revision)1
T. Cornwell (NRAO)
06/2004
76 pdf   EVLA and SKA Computing Costs for Wide Field Imaging
Superseded by EVLA Memo 77
T. Cornwell (NRAO)
05/2004
75 pdf   Approximate formulas for the distance term in far and near field interferometry T. Cornwell (NRAO)
04/2004
74 pdf ps A Proposal to Design and Implement a Compact Water Vapour Radiometer for the EVLA C. Chandler, W.  Brisken, B. Butler, R. Hayward, M. Morgan and B. Willoughby (NRAO)
07/08/2004
73 pdf ps Results of Water Vapour Radiometry Tests at the VLA C.Chandler, W. Brisken, B. Butler, R. Hayward, and B. Willoughby (NRAO)
08/09/2004
72 pdf   EVLA Hardware Modifications in Support of Solar Observing T. Bastian , P. Lilie (NRAO)
02/2004
71 pdf ps Mathematic basis of an array configuration
optimization minimizing side lobes
L. Kogan (NRAO)
02/19/04
70 pdf ps Desiderata for Solar Observing with the EVLA R. Perley, T. Bastian (NRAO)
01/29/04
69 pdf   Focal Plane Array Beam-forming and Spill-over Cancellation using Vivaldi Antennas W. Brisken, C. Craeye (NRAO)
01/29/04
68 pdf   Noise Contribution of 90° Hybrids Before Low Noise Amplifiers P. Lilie (NRAO)
01/2004
67 pdf   W Projection: A New Algorithm for Non-Coplanar Baselines T. Cornwell, K. Golap, S. Bhatnagar (NRAO)
12/16/03
66 pdf ps The Effect of Electronics Non-Linearity on Closure and Imaging R. Perley (NRAO)
09/26/03
65 pdf ps Comparison of the Brightness Sensitivities of the EVLA Compact E-Configuration and ATA (q8a_2w) L. Kogan, R. Perley (NRAO)
09/25/03
64 pdf ps Wide-Field Imaging with the EVLA:
WIDAR Correlator Modes and Output Data Rates
R. Perley (NRAO)
02/23/04
63 pdf ps Scaling Relations for Interferometric Post-Processing R. Perley, B. Clark (NRAO)
09/16/03
62 pdf   Full Primary Beam Stokes I, Q, U, V Imaging T. Cornwell (NRAO)
07/25/03
61 pdf ps Removing RFI Through Astronomical Image Processing R. Perley, T. Cornwell (NRAO)
07/21/03
60 pdf   The Circular Polarization Characteristics of the New VLA K-Band Receiver System R. Hayward, E. Szpindor, D. Hicks (NRAO)
06/18/03
59 pdf   Highly Shielded Boxes for the EVLA Project R. Ridgeway (NRAO)
06/04/03
58 pdf ps Using Grasp8 To Study The VLA Beam W. Brisken (NRAO)
05/09/03
57 pdf   A Time Standard for Radio Astronomy
The New Mexico Array
J. Coleman, Q.Harris, G. Henckel, A. Moritz, A. Prager (NMT- EE 482 - Senior Design Group 5) 04/30/03
56 pdf ps Mosaic Mode Imaging Simulations with the EVLA E and D Configurations L. Kogan, F. Owen (NRAO)
03/26/03
55 pdf ps EVLA Transition Operations [NRAO-ONLY] J. Ulvestad (NRAO)
03/21/03
54 pdf
pdf
ps
ps
VLA Site Spectrum Survey: 1-18 GHZ Results
Appendix
D. Mertely, R. Ridgeway, C. Patscheck,
E. Reynolds, K. Shores, N. Thomas,
R. Tapia (NRAO)
01/22/03
53 pdf ps.gz A Vivaldi Focal Plan Array for EVLA W. Brisken (NRAO)
03/06/03
52 pdf ps Operations Plan for the Expanded Very Large Array
[NRAO-ONLY]
P. Perley (NRAO)
03/06/03
51 pdf ps The Proposed New Mexico Array Configuration
[NRAO-ONLY]
C. Walker,  F. Owen (NRAO)
02/21/03
50 pdf ps VLBA/EVLA Integration in the EVLA Phase 2 Proposal
[NRAO-ONLY]
C. Walker (NRAO)
12/20/02
49 pdf ps Attenuation of Radio Frequency Interference by Interferometric Fringe Rotation R.  Perley (NRAO)
11/15/02
48 pdf ps New Mexico Array plus Kitt Peak and Fort Davis C. Walker (NRAO)
11/11/02
47 pdf ps Estimated Shielding for the EVLA Ethernet Switches Y.  Pihlström (UNM)
10/28/02
46 pdf ps RFI Emission Goals for EVLA Electronics R.  Perley (NRAO)
10/15/02
45 pdf   Antenna Positioning System Specifications B. Broilo (NRAO)
08/19/02
44 pdf   Operational Performance of the EVLA LO Round Trip Phase System     [NRAO-ONLY] S. Durand, T. Cotter (NRAO)
07/30/02
43 pdf   Operational Performance of the EVLA Digital Transmission System     [NRAO-ONLY] J. Jackson, S. Durand (NRAO)
07/30/02
42 pdf   New Card Cage Design for EVLA Front End Systems R. Hayward (NRAO)
07/17/02
41 pdf   Lightning Protection for Fiber Optic Cable T. Baldwin (NRAO)
06/05/02
40 pdf   Fiber Optic Cable Acceptance Tests T.  Baldwin (NRAO)
06/07/02
39 pdf   Application Note Using the Serial Peripheral Interface (SPI) for EVLA W.  Koski (NRAO)
04/25/02
38     Design of a Motion Controller for VLA Antenna Azimuth & Elevation (hard copy only) N. Dale, J. Landes (NRAO)
05/11/00
37
 
  The New "UX-to-X Band Converter" (hard copy only) P. Harden (NRAO)
03/29/02
36   ps A Satellite LO System B. Clark (NRAO)
03/25/02
35   ps A New Mexico Array Configuration C. Walker (NRAO)
03/14/02
34 pdf   EVLA Monitor & Control System G. Peck (NRAO)
03/12/02
33 pdf   Digital Transmission System Signaling Protocol S. Durand (NRAO)
11/14/01
32 pdf   IF Fiber Selection Criteria T. Baldwin,  S. Durand (NRAO)
11/14/01
31 pdf   Refined EVLA WIDAR Correlator Architecture B. Carlson (NRAO)
10/02/01
30   ps An EVLA Compact Configuration with Optimized Side Lobes L. Kogan (NRAO)
8/15/01
29   ps Toward a Cost Equation for a Multielement Station B. G. Clark (NRAO)
5/01
28 pdf   Operator Interface Concepts for Array and Correlator On-line Monitor and Control B. Carlson (NRAO)
2/01
27 pdf   Concepts for an "Observation Builder" for Array and Correlator Configurations B. Carlson (NRAO)
2/01
26 pdf   WIDAR Correlator Sensitivity Losses B. Carlson (NRAO)
1/01
25 pdf   Requirements for 8-bit Processing in the Proposed WIDAR Correlator for the EVLA B. Carlson (NRAO)
1/01
24 pdf   Computing for EVLA Calibration and Imaging T.J. Cornwell (NRAO)
1/01
23 pdf   Summary of Discussions Held During the July 10-14, 2000 Workweek in Socorro Regarding the EVLA-WIDAR Correlator B. Carlson (NRAO)
8/00
22   ps Can Remote Observing Be Good Observing? Reflections on Procrustes and Antaeus J. Lockman (NRAO)
6/93
21 pdf   Maintainability of VLA Expansion Correlator M. Revnell (NRAO)
11/99 
20   ps Configuration Studies for the Expanded Very Large Array A. Cohen, R. Perley (NRAO)
12/04/00
19 pdf   Simulation Tests to Quantify the Spectral Dynamic Range and Narrowband Interference Robustness of the WIDAR Correlator for the EVLA B. Carlson, P. Dewdney (NRAO)
11/01/00
18 pdf   Simulation Tests of Phasing Subsystem Signal Processing in the WIDAR Correlator for the EVLA B. Carlson (NRAO) 11/07/00
17 pdf   Simulation Tests of Sub-Sample Delay Tracking in the Proposed WIDAR Correlator for the EVLA B. Carlson (NRAO)
10/03/00
16 pdf   Two Correlators for the Price of One: How a VLBA Correlator Could Fit Within the Proposed 40-Station WIDAR EVLA Correlator B. Carlson (NRAO)
09/28/00
15   ps Scientific Requirements for the EVLA Real-Time System J. Benson, F. Owen (NRAO)
07/06/00
14 pdf   A More Detailed Analysis of Recirculation Architecture, Algorithms, and Limitations in the Proposed WIDAR Correlator for the EVLA B. Carlson (NRAO)
06/06/00
13 pdf   A Closer Look at 2-Stage Digital Filtering in the Proposed WIDAR Correlator for the EVLA B. Carlson (NRAO)
005/29/00
12 pdf   An Analysis of the Effects of Phase Dithering in a Lag-based Fringe-Stopping XF Correlator B. Carlson (NRAO)
05/26/00
11 pdf   A Proposed WIDAR Correlator for the EVLA Project B. Carlson (NRAO)
05/18/00
10   ps Predicted Optical Fiber Length Variations Due To Temperature Changes T. Cotter (NRAO)
09/19/00
9   ps Design Studies for the A+ Configuration E. Keto (NRAO)
02/18/98
8   ps Astronomical Requirements for the New VLA Correlator M. Rupen (NRAO)
12/02/97
7 html   Investigating Antenna Locations for the VLA A+ Array M.A. Holdaway, R. Perley (NRAO)
10/06/96
6   ps Exploring Various Options for a VLA E Array M.A. Holdaway (NRAO)
10/06/96
5 pdf   A Larger Subreflector for the VLA P.J. Napier (NRAO) 08/04/96
4 pdf   The Case for Continuous Frequency Coverage Between 1 and 50 GHz for the VLA Upgrade R. Perley (NRAO)
02/04/96
3 pdf   Comments on the VHF/UHF Expansion Project for the VLA Upgrade R.F. Bradley (NRAO)
25/07/95
2   ps The UHF/VHF Prime Focus Systems for the Future VLA Upgrade R. Sramek NRAO
21/07/95
1   ps Organization and Goals of the Project R. Perley, R. Sramek NRAO
27/12/95
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Last modified by Lori Appel
lappel@nrao.edu
on: Monday, 08-Apr-2013 11:24:24 MDT