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VLA Expansion Project Memoranda 


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No.

 

 

Title

Author(s)

Date

123

pdf

ps

The Effect of the 4-Band Dipoles on L, C, and X Band Performance

Rick Perley

05/09/2008

122

pdf

ps

EVLA Requirements for Postprocessing Algorithms and Computing

Frazer Owen

01/07/2008

121

pdf

EVLA L-, K-, and Q-Band Focus Analysis: Version 1

Brigette Hesman, Rick Perley, Ken Sowinski

02/11/2008

120

pdf

ps

Some Thoughts on System Temperature Measurements for the EVLA

Rick Perley, Ken Sowinski

01/14/2008

119

pdf

ps

Wide-Band Sensitivity and Frequency Coverage of the EVLA and VLA L-Band Receivers

Rick Perley, Bob Hayward

01/17/2008

118

pdf

Ionospheric Effects and Imaging and Calibration of VLA Data

W. D. Cotton

09/2007

117

pdf

Ionospheric Effects and Calibration of the VLA at 327 MHz

W. D. Cotton, Juan M. Uson

09/2007

116

pdf

Automatic CLEAN windowing

W. D. Cotton

09/2007

115

pdf

Tools for Ionospheric Studies

W. D. Cotton

09/2007

114

pdf

Image Pixelization and Dynamic Range

W. D. Cotton, Juan M. Uson

09/2007

113

pdf

Beam Squint and Stokes V on the VLA

W. D. Cotton and Juan M. Uson

09/2007

112

pdf

Design, Prototyping and Measurement of EVLA S-Band Feed Horn

Sivasankaran Srikanth, Jim Ruff

08/17/2007

111

pdf

2 - 4 GHz End-to-End Signal Path Tests

Keith Morris, James Jackson

07/19/2007

110

pdf

ps

The Effect of Amplifier Compression by Narrowband RFI on Radio Interferometer Imaging

Rick Perley, Bob Hayward

04/25/2007

109

pdf

ps

Wideband Performance of the EVLA L-Band System

Rick Perley, Bob Hayward

02/14/2007

108

pdf

LO/IF Phase Dependence on Antenna Elevation

Keith Morris, Jim Jackson, Vivek Dhawan

06/18/2007

107

pdf

Failure Pathology of EVLA WIDAR Correlator Support Systems

Bob Broilo, Brent Carlson

10/18/2006

106

pdf

ps

RFI Emission Limits For Equipment at the VLA Site

Rick Perley, Bill Brundage, Dan Mertely

09/08/2006

105

pdf

Phase Coherence of the EVLA Radio Telescope

Steven Durand, James Jackson, Keith Morris

10/30/2006

104

pdf

ps

RFI Emission Goals on Internally-Coupled Signals

Rick Perley

08/25/2006

103

pdf

ps

Performance Tests of the EVLA K- and Q-Band Systems

Rick Perley, Bob Hayward, Bryan Butler, Vivek Dhawan

03/01/2006

102

pdf

ps

Monte Carlo Methods for Bayesian Image Reconstruction
and Analysis in Radio Astronomy

Urvashi R. V., NM Tech & NRAO; T. J. Cornwell, ATNF

02/2006

101

pdf

ps

Multi Frequency Synthesis Imaging for the EVLA :
An initial investigation

Urvashi R.V., NRAO & New Mexico Tech;
T.J.Cornwell, ATNF; S.T.Myers, NRAO

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

Vivek Dhawan and Dan Mertely

01/23/2006

98

pdf

ps

The EVLA 8-Bit Digitizer Performance

Michael Revnell

11/07/2005

97

pdf

ps

The EVLA Transition Filter

Michael Revnell

11/07/2005

96

pdf

ps

Imaging at Wide Field of View for a Plane Array

Leonid Kogan

09/20/2005

95

pdf

Design, Prototyping and Measurement of EVLA C-Band Feed Horn

S. Srikanth and 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

Michael R. Johnson

05/12/2005

93

pdf

ps

Optimization of the LWA Antenna Station Configuration Minimizing Side Lobes

Leonid Kogan and Aaron Cohen

05/04/2005

92

pdf

L/S/C Converter Plate Phase Stability Test

Michael R. Johnson

04/20/2005

91

pdf

ps

EVLA Phase III: A Major Step Toward the High Frequency SKA

C. L. Carilli

04/21/2005

90

pdf

ps

Performance Tests of the EVLA C-Band Feed

Rick Perley and Bob Hayward

02/16/2005

89

pdf

The EVLA Outdoor Antenna Test Range Project
Fourth Quarter 2004, Progress Report

T. Jensen

02/08/2005

88

pdf

Quantization Noise

A. R. Thompson and D. T. Emerson

01/21/2005

87

pdf

Design, Prototyping and Measurement of EVLA L-Band Feed Horn

Sivasankaran Srikanth, Jim Ruff and Ed Szpindor

03/22/2005
[Revised]

86

pdf

RFI excision in synthesis imaging without a reference signal

T. J. Cornwell, R. A. Perley, K. Golap and S. Bhatnagar

12/08/2004

85

pdf

ps

Testing the EVLA L-Band Feed

Rick Perley, Bob Hayward and Dan Mertely

11/16/2004

84

pdf

ps

Solving for the Antenna Based Pointing Errors

S. Bhatnagar, T. J. Cornwell and K. Golap

10/18/2004

83

pdf

ps

Quantization Loss for a Sloped Passband

Brent Carlson, Rick Perley

08/30/2004

82

pdf

ps

Headroom Requirements for the EVLA

Rick Perley

08/30/2004

81

pdf

Azimuth Cable Wraps and E-Array Layout

Jim Ruff

07/13/2004

80

pdf

A Gain Slope Correction Scheme for the EVLA Receiver System

R. Hayward, M. Morgan and K. Saini

07/13/2004

79

pdf

ps

The Effect of Strong CW Signals on Interferometer Calibration, Closure, and Imaging

Rick Perley and Bob Hayward

07/29/2004

78

pdf

EVLA Chamber Characterization Confirms PCB RFI Emissions Levels and Module Shielding Goals

Robert Ridgeway

06/10/2004

77

pdf

EVLA and SKA Computing Costs for Wide Field Imaging
(Revision)1

Tim Cornwell

06/2004

76

pdf

EVLA and SKA Computing Costs for Wide Field Imaging
Superseded by EVLA Memo 77

Tim Cornwell

05/2004

75

pdf

Approximate formulas for the distance term in far and near field interferometry

Tim Cornwell

04/2004

74

pdf

ps

A Proposal to Design and Implement a Compact Water Vapour Radiometer for the EVLA

C. J. Chandler, W. F. Brisken, B. J. Butler, R. H. Hayward, M. Morgan and B. E. Willoughby

07/08/2004

73

pdf

ps

Results of Water Vapour Radiometry Tests at the VLA

C. J. Chandler, W. F. Brisken, B. J. Butler, R. H. Hayward, and B. E. Willoughby

08/09/2004

72

pdf

EVLA Hardware Modifications in Support of Solar Observing

T. S. Bastian and P. Lilie

02/2004

71

pdf

ps

Mathematic basis of an array configuration
optimization minimizing side lobes

L. Kogan

02/19/04

70

pdf

ps

Desiderata for Solar Observing with the EVLA

Rick Perley, Tim Bastian

01/29/04

69

pdf

Focal Plane Array Beam-forming and Spill-over Cancellation using Vivaldi Antennas

Walter Brisken, Christophe Craeye

01/29/04

68

pdf

Noise Contribution of 90° Hybrids Before Low Noise Amplifiers

Paul Lilie

01/2004

67

pdf

W Projection: A New Algorithm for Non-Coplanar Baselines

T. J. Cornwell, K. Golap,
S. Bhatnagar

12/16/03

66

pdf

ps

The Effect of Electronics Non-Linearity on Closure and Imaging

Rick Perley

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

09/25/03

64

pdf

ps

Wide-Field Imaging with the EVLA:
WIDAR Correlator Modes and Output Data Rates

Rick Perley

02/23/04

63

pdf

ps

Scaling Relations for Interferometric Post-Processing

Rick Perley, Barry Clark

09/16/03

62

pdf

Full Primary Beam Stokes I, Q, U, V Imaging

T. J. Cornwell

07/25/03

61

pdf

ps

Removing RFI Through Astronomical Image Processing

Rick Perley, Tim Cornwell

07/21/03

60

pdf

The Circular Polarization Characteristics of the New VLA K-Band Receiver System

Robert Hayward, Edward Szpindor, Darrell Hicks

06/18/03

59

pdf

Highly Shielded Boxes for the EVLA Project

Robert W. Ridgeway

06/04/03

58

pdf

ps

Using Grasp8 To Study The VLA Beam

Walter Brisken

05/09/03

57

pdf

A Time Standard for Radio Astronomy
The New Mexico Array

Jennifer Coleman, Quinn Harris, George Henckel, Adam Moritz, Aaron Prager
New Mexico Tech , 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

03/26/03

55

pdf

ps

EVLA Transition Operations [NRAO-ONLY]

James S. Ulvestad

03/21/03

54

pdf

pdf

ps

ps

VLA Site Spectrum Survey: 1-18 GHZ Results

Appendix

Dan Mertely, Robert Ridgeway, Chris Patscheck, Eric Reynolds, Kerry Shores, Nathan Thomas, Rydelle Tapia

01/22/03

53

pdf

ps.gz

A Vivaldi Focal Plan Array for EVLA

Walter Brisken

03/06/03

52

pdf

ps

Operations Plan for the Expanded Very Large Array

[NRAO-ONLY]

Peggy Perley

03/06/03

51

pdf

ps

The Proposed New Mexico Array Configuration

[NRAO-ONLY]

Craig Walker and Frazer Owen

02/21/03

50

pdf

ps

VLBA/EVLA Integration in the EVLA Phase 2 Proposal

[NRAO-ONLY]

Craig Walker

12/20/02

49

pdf

ps

Attenuation of Radio Frequency Interference by Interferometric Fringe Rotation

Rick Perley

11/15/02

48

pdf

ps

New Mexico Array plus Kitt Peak and Fort Davis

Craig Walker

11/11/02

47

pdf

ps

Estimated Shielding for the EVLA Ethernet Switches

Ylva Pihlström

10/28/02

46

pdf

ps

RFI Emission Goals for EVLA Electronics

Rick Perley

10/15/02

45

pdf

 

Antenna Positioning System Specifications

Bob Broilo

08/19/02

44

pdf

 

Operational Performance of the EVLA LO Round Trip Phase System     [NRAO-ONLY]

Steven Durand
and Terry Cotter

07/30/02

43

pdf

 

Operational Performance of the EVLA Digital Transmission System     [NRAO-ONLY]

James Jackson
and Steven Durand

07/30/02

42

pdf

 

New Card Cage Design for EVLA Front End Systems

R. Hayward

07/17/02

41

pdf

 

Lightning Protection for Fiber Optic Cable

Tom Baldwin

06/05/02

40

pdf

 

Fiber Optic Cable Acceptance Tests

Tom Baldwin

06/07/02

39

pdf

 

Application Note Using the Serial Peripheral Interface (SPI) for EVLA

Wayne Koski

04/25/02

38

 

 

Design of a Motion Controller for VLA Antenna Azimuth & Elevation (hard copy only)

Nathaniel Dale and Jack Landes

05/11/00

37

 

 

The New "UX-to-X Band Converter" (hard copy only)

Paul Harden

03/29/02

36

 

ps

A Satellite LO System

B. G. Clark

03/25/02

35

 

ps

A New Mexico Array Configuration

Craig Walker

03/14/02

34

pdf

 

EVLA Monitor & Control System

George Peck

03/12/02

33

pdf

 

Digital Transmission System Signaling Protocol

Steven Durand

11/14/01

32

pdf

 

IF Fiber Selection Criteria

Tom Baldwin and Steven Durand

11/14/01

31

pdf

 

Refined EVLA WIDAR Correlator Architecture

Brent Carlson

10/02/01

30

 

ps

An EVLA Compact Configuration with Optimized Side Lobes

L. Kogan

8/15/01

29

 

ps

Toward a Cost Equation for a Multielement Station

B. G. Clark

5/01

28

pdf

 

Operator Interface Concepts for Array and Correlator On-line Monitor and Control

Brent Carlson

2/01

27

pdf

 

Concepts for an "Observation Builder" for Array and Correlator Configurations

Brent Carlson

2/01

26

pdf

 

WIDAR Correlator Sensitivity Losses

Brent Carlson

1/01

25

pdf

 

Requirements for 8-bit Processing in the Proposed WIDAR Correlator for the EVLA

Brent Carlson

1/01

24

pdf

 

Computing for EVLA Calibration and Imaging

T.J. Cornwell

1/01

23

pdf

 

Summary of Discussions Held During the July 10-14, 2000 Workweek in Socorro Regarding the EVLA-WIDAR Correlator

Brent Carlson

8/00

22

 

ps

Can Remote Observing Be Good Observing? Reflections on Procrustes and Antaeus

Jay Lockman

6/93

21

pdf

 

Maintainability of VLA Expansion Correlator

M. Revnell

11/99 

20

 

ps

Configuration Studies for the Expanded Very Large Array

Aaron Cohen, Rick Perley

12/04/00

19

pdf

 

Simulation Tests to Quantify the Spectral Dynamic Range and Narrowband Interference Robustness of the WIDAR Correlator for the EVLA

Brent Carlson, Peter Dewdney

11/01/00

18

pdf

 

Simulation Tests of Phasing Subsystem Signal Processing in the WIDAR Correlator for the EVLA

Brent Carlson

11/07/00

17

pdf

 

Simulation Tests of Sub-Sample Delay Tracking in the Proposed WIDAR Correlator for the EVLA

Brent Carlson

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

Brent Carlson

09/28/00

15

 

ps

Scientific Requirements for the EVLA Real-Time System

J. Benson, F. Owen

07/06/00

14

pdf

 

A More Detailed Analysis of Recirculation Architecture, Algorithms, and Limitations in the Proposed WIDAR Correlator for the EVLA

Brent Carlson

06/06/00

13

pdf

 

A Closer Look at 2-Stage Digital Filtering in the Proposed WIDAR Correlator for the EVLA

Brent Carlson

005/29/00

12

pdf

 

An Analysis of the Effects of Phase Dithering in a Lag-based Fringe-Stopping XF Correlator

Brent Carlson

05/26/00

11

pdf

 

A Proposed WIDAR Correlator for the EVLA Project

Brent Carlson

05/18/00

10

 

ps

Predicted Optical Fiber Length Variations Due To Temperature Changes

Terry Cotter

09/19/00

9

 

ps

Design Studies for the A+ Configuration

E. Keto

02/18/98

8

 

ps

Astronomical Requirements for the New VLA Correlator

M.P. Rupen

12/02/97

7

html

 

Investigating Antenna Locations for the VLA A+ Array

M.A. Holdaway, R. Perley

10/06/96

6