Philip Rudnick

University of California, San Diego

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Co-Authors

Francis G. Slack

Hobe Sound Bible College

Victor C. Anderson

Anglia Ruskin University

L. R. Inǵersoll

University of Wisconsin–Madison

William W. Watson

Robert Gordon University

Bradford A. Becken

Scripps Institution of Oceanography

Gretchen Forman

University of Illinois Urbana-Champaign

John O’Connor

Trinity College Dublin

R. L. Chenault

Whale Museum

Nathan Underwood

Vanderbilt University

Raymond W. Hasse

United States Department of the Navy

Cooperative Institutions

Vanderbilt University

Scripps Institution of Oceanography

Whale Museum

United States Department of the Navy

Massachusetts Institute of Technology

University of North Carolina at Chapel Hill

University of California, San Diego

Johns Hopkins University

Harvard University

University of Illinois Urbana-Champaign

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A Signal-to-Noise Property of Binary Decisions

Nature (1962)

Philip Rudnick

SIGNAL (programming language)

Detection theory

10.1038/193604a0

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Citations (18)

The spectrum of the variation in latitude

Transactions American Geophysical Union (1956)

Philip Rudnick

A Fourier series analysis of the motion of the Earth's rotation axis in the frequency range 0.74 to 1.14 cycles per year, containing 9pct of the total power in the motion, shows: (1) an annual line without recognizable structure comprising about 2pct of the power in the region examined; (2) the Chandler component comprising about 7pct of the power, with band structure somewhat broader than heretofore recognized, leading to a value 9.5 yr for the amplitude decay time; (3) an annual component of excitation in agreement with previous determinations, equivalent to a root‐mean‐square displacement of the axis of inertial symmetry of 0.023″ of arc; (4) a continuous spectrum of excitation which is well determined in the Chandler region, at least roughly determined at other frequencies below annual, but not determined above the annual frequency. The magnitude of the continuous spectrum below annual frequency is consistent with the hypothesis that it, in association with the annual line, arises in the atmosphere, but lack of a determined spectrum at higher frequencies prevents examination of side‐band symmetry.

Root mean square

10.1029/tr037i002p00137

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Citations (25)

XX. Optical activity and magneto-optical activity of crystalline nickel sulphate in the near ultra-violet

The London Edinburgh and Dublin Philosophical Magazine and Journal of Science (1939)

Francis G. Slack Philip Rudnick

Ultra violet

10.1080/14786443908521178

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Citations (6)

A Thermistor Bridge Correlator

Review of Scientific Instruments (1953)

Victor C. Anderson Philip Rudnick

A circuit is described for the measurement of a correlation coefficient between two continuous signals. The method depends on an accurate mean square element which is obtained through the i2r heating of a thermistor. Relatively simple circuit features give accuracy to about 1 percent, even though the resistance of the thermistor varies by about 25 percent between zero and full input.

Thermistor

Bridge circuit

Wheatstone bridge

Temperature coefficient

Bridge (graph theory)

10.1063/1.1770710

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Citations (0)

Acceleration Calculations from Spark Recorded Data

American Journal of Physics (1936)

Philip Rudnick

First Page

SPARK (programming language)

10.1119/1.1999128

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Extreme Pacific waves, December 1969

Journal of Geophysical Research Atmospheres (1971)

Philip Rudnick Raymond W. Hasse

The presence of the large spar buoy Flip in extreme seas about 350 nautical miles north of Oahu on December 1, 1969, led to an estimated significant wave height of 14.9 meters and predominant periods in the range 16 to 20 sec.

Rogue wave

10.1029/jc076i003p00742

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Citations (7)

Rotational Terms in the MgH Bands

Physical Review (1927)

William W. Watson Philip Rudnick

Rotational term data for the green MgH bands.---The values of the rotational terms for the vibrational states \textonehalf{}, $\frac{3}{2}$, and $\frac{5}{2}$ in the green MgH bands are tabulated.Analytical representation of the terms. The Kratzer, Kramers and Pauli formula is applied to the data with the following values giving the best fit: ${{j}^{\ensuremath{'}}}_{min}=\frac{1}{2}$, ${{j}^{\ensuremath{'}\ensuremath{'}}}_{min}=\frac{1}{2}$, ${\ensuremath{\sigma}}^{\ensuremath{'}}=\frac{1}{2}$, ${\ensuremath{\sigma}}^{\ensuremath{'}\ensuremath{'}}$ small (\textonehalf{}), ${\ensuremath{\epsilon}}^{\ensuremath{'}}$ and ${\ensuremath{\epsilon}}^{\ensuremath{'}\ensuremath{'}}$ small (\ensuremath{\cong}0). The term $m=1$ exists, thereby making it impossible to let $j=m\ensuremath{-}1$. Other predicted electronic quantum numbers are shown to agree less well with the observed $\ensuremath{\Delta}F$ values.

Quantum number

10.1103/physrev.29.413

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Citations (32)

The Detection of Weak Signals by Correlation Methods

Journal of Applied Physics (1953)

Philip Rudnick

A procedure involving autocorrelation is described which, for long averaging time and incoming signals with continuous spectrum, has a detection threshold equal to that of a corresponding conventional system consisting of band pass filter, rectifier, and low pass filter. The autocorrelation procedure is quite complex; a full autocorrelation function is computed and then subjected to a ``filtering'' operation. A simpler procedure, such as computing autocorrelation coefficients for only one or a few delay times, will in general be less effective. A third process, involving multiplication by a local sinusoidal signal, is also discussed and shown to be closely parallel to the conventional system.

Autocorrelation technique

SIGNAL (programming language)

Autocorrelation matrix

10.1063/1.1721224

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Citations (17)

Detection with Underwater Sound; Comments on the Present State of the Art

The Journal of the Acoustical Society of America (1960)

Philip Rudnick

Defense is offered for use of likelihood ratio considerations in designing a computer for detection. apart from doctrine for the detailed use of the computer output. There is needed: (a) full experimental investigation of the performance of Gaussian likelihood ratio computers, for which usable design theory is available, (b) theoretical effort toward using achievable empirical input statistics in approximating the likelihood ratio, (c) theoretical interrogation of the likelihood ratio principle for means of dealing with specific and strategic kinds of non-Gaussian behavior in the input noise, and (d) empirical examination of actual background noise for the same kinds of non-Gaussian behavior. (This work represents results of research carried out under contract with the Office of Naval Research.)

USable

Gaussian Noise

Empirical Research

Interrogation

10.1121/1.1936227

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Citations (0)

Flip: An Oceanographic Buoy

Science (1964)

Philip Rudnick

Buoy

10.1126/science.146.3649.1268

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Citations (8)