VLA Expansion Project Memoranda 

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

No.     Title Author(s) Date
178pdfpsStability of EVLA Polarizers at L, S, C, and X bandsR. Perley (NRAO)
B. Sault (Melbourne)
04/09/2014
177
pdf
Polarimetric calibration and dynamic range issues
R. J. Sault, R. A. Perley (NRAO) 04/03/2014
176
pdf

High-sensitivity bandpass calibration: Combining observations in time
C. Murray (UW Madison)
W.M. Goss (NRAO)
S. Stanimirovic (UW Madison)
01/28/2014
175
pdf

Low Band Receiver Performance
S. Durand, P.  Harden (NRAO)
09/27/2013
174
pdf

Relative Sensitivity of Erickson and MPJ dipole feeds
F. Owen (NRAO)
09/30/2013
173
pdf

Strut-Straddling Arrays for the VLA 4-meter observing system
S. Ellingson (Virginia Tech)
D. Merteley (NRAO
S. Coffey (NRAO)
09/22/2013
172
pdf

The Modified J-Pole Antenna
S. Ellingson (Virginia Tech)
S. Coffey (NRAO),
D. Merteley (NRAO)
09/20/2013
171
pdf

Bandpass Stability: A 59 kHz Ripple

C. Murray (UW Madison)
W.M. Goss (NRAO)
S. Stanimirovic (UW Madison)
09/18/2013
170pdf
Determining full EVLA polarization leakage terms at C and X bandsR. J. Sault, R. A. Perley (NRAO)
08/29/2013
169pdf
Spectral artifacts from phase serializationR. J. Sault, K. Sowinski (NRAO)
08/26/2013
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: Wednesday, 09-Apr-2014 14:04:02 MDT