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Numerical simulation of time delay interferometry for a LISA-like mission with the simplification of having only one interferometer
S.V.Dhurandhar ; Wei-Tou Ni ; Gang Wang
AbstractIn order to attain the requisite sensitivity for LISA, laser frequency noise must be suppressed below the secondary noises such as the optical path noise, acceleration noise etc. In a previous paper (Dhurandhar, S.V., Nayak, K.R., Vinet, J.-Y. Time delay interferometry for LISA with one arm dysfunctional. Class. Quantum Grav. 27, 135013, 2010), we have found a large family of second-generation analytic solutions of time delay interferometry with one arm dysfunctional, and we also estimated the laser noise due to residual time-delay semi-analytically from orbit perturbations due to Earth. Since other planets and solar-system bodies also perturb the orbits of LISA spacecraft and affect the time delay interferometry (TDI), we simulate the time delay numerically in this paper for all solutions with the generation number n ⩽ 3. We have worked out a set of 3-year optimized mission orbits of LISA spacecraft starting at January 1, 2021 using the CGC2.7 ephemeris framework. We then use this numerical solution to calculate the residual optical path differences in the second-generation solutions of our previous paper, and compare with the semi-analytic error estimate. The accuracy of this calculation is better than 1 cm (or 30 ps). The maximum path length difference, for all configuration calculated, is below 1 m (3 ns). This is well below the limit under which the laser frequency noise is required to be suppressed. The numerical simulation in this paper can be applied to other space-borne interferometers for gravitational wave detection with the simplification of having only one interferome
Subject AreaAstronomy & Astrophysics
Document Type期刊论文
Recommended Citation
GB/T 7714
S.V.Dhurandhar,Wei-Tou Ni,Gang Wang. Numerical simulation of time delay interferometry for a LISA-like mission with the simplification of having only one interferometer[J]. ADVANCES IN SPACE RESEARCH,2012,51(1):198-206.
APA S.V.Dhurandhar,Wei-Tou Ni,&Gang Wang.(2012).Numerical simulation of time delay interferometry for a LISA-like mission with the simplification of having only one interferometer.ADVANCES IN SPACE RESEARCH,51(1),198-206.
MLA S.V.Dhurandhar,et al."Numerical simulation of time delay interferometry for a LISA-like mission with the simplification of having only one interferometer".ADVANCES IN SPACE RESEARCH 51.1(2012):198-206.
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