"Low-Frequency Gravitational Wave Searches
Using Spacecraft Doppler Tracking"
by
J. W. Armstrong
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Abstract
1
Introduction
2
Notation, Acronyms, and Conventions
3
Gravitational Wave Signal Response
4
Apparatus and Principal Noise Sources
4.1
Frequency standard noise
4.2
Plasma scintillation noise
4.3
Tropospheric scintillation noise
4.4
Antenna mechanical noise
4.5
Ground electronics noise
4.6
Spacecraft transponder noise
4.7
Thermal noise in the ground and spacecraft receivers
4.8
Spacecraft unmodeled motion
4.9
Aggregate spectrum
4.10
Summary of noise levels and transfer functions
5
Signal Processing
5.1
Noise spectrum estimation
5.2
Sinusoidal and quasiperiodic waves
5.3
Bursts
5.4
Stochastic background
5.5
Classification of data intervals based on transfer functions
5.6
Frequency-time representations
5.7
Qualifying/disqualifying candidates
5.8
Other comments
6
Detector Performance
6.1
Observations to date
6.2
Sensitivity to periodic and quasi-periodic waves
6.3
Burst waves
6.4
Sensitivity to a stochastic background
7
Improving Doppler Tracking Sensitivity
8
The LISA Low-Frequency Detector
9
Concluding Comments
10
Acknowledgements
References
Footnotes
Updates
Figures
