Narrow-Band Searches for Gravitational Radiation With Spacecraft Doppler Tracking
Abstract
We discuss a filtering technique for reducing the two-way Doppler frequency fluctuations of noise sources localized in space (like the troposphere, or the master clock) that affect the sensitivity of spacecraft Doppler tracking searches for gravitational radiation. This method takes advantage of the sinusoidal behavior of the transfer function to the Doppler observable of these noise sources, which displays sharp nulls at selected Fourier components. The non-zero gravitational wave signal remaining at these frequencies makes this Doppler tracking technique the equivalent of a series of narrow-band detectors of gravitional radiation[1], distributed across the low-frequency band. Estimates for the sensitivities achievable with the future Cassini Doppler tracking experiments are presented in the context of broad-band gravitational wave bursts, monochromatic signals, and a stochastic background of gravitational radiation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1997
- Accession Number
- ADA511719
Entities
People
- J. W. Armstrong
- Massimo Tinto
Organizations
- California Institute of Technology