LISA-2020: An Intermediate Scale Space Gravitational Wave Observatory for This Decade

Buchman, Sasha; Lipa, J. A.; Byer, R. L.; DeBra, D.; Balakrishnan, Karthik; Cutler, Grant D.; Alfauwaz, Abdul; Hultgren, Eric; Aljadaan, Ahmad; Saraf, S.; Tan, S.; Althubiti, Salman; Zoellner, Andreas

doi:10.48550/arxiv.1302.2368

Cited by 2 publications

(2 citation statements)

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“…The relatively mature and typical solution of the space gravitational wave detector is to use six sets of telescopes and optical platforms in three sets of spacecrafts (S/C) to launch lasers in deep space, between hundreds of thousands of kilometers and millions of kilometers away from Earth [11][12][13][14]. To reach picometer accuracy in space gravitational wave interferometry, it is necessary to shield any non-gravitational interference noise and perform a series of operations to control the spacecraft and its payload in parallel [3].…”

Section: Introductionmentioning

confidence: 99%

Frequency Division Control of Line-of-Sight Tracking for Space Gravitational Wave Detector

Deng

Meng

2022

Sensors

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The space gravitational wave detector uses the inter-satellite laser interferometer to measure a change in distance with ultra-high precision at the picometer level. Its special differential wavefront sensing technology based on laser interference is used to obtain the ultra-high-precision relative attitude between spacecrafts. In order to acquire the measurement, it is necessary to maintain high-precision attitude pointing and alignment for the optical path line-of-sight of the detector. This paper proposes a frequency division control method. More specifically, we chose the telescope attitude control loop frequency division as it is the faster response part, mainly relative to the high-frequency band within the measurement bandwidth. The spacecraft attitude frequency division is mainly in the low-frequency band within the measurement bandwidth. Finally, a high-precision simulation analysis is carried out. The results show that compared with traditional methods, the use of frequency division control design can significantly improve the attitude and pointing stability of the system and provide control support for systems requiring high pointing coordination accuracy, such as space gravity wave detectors.

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Section: Introductionmentioning

confidence: 99%

Frequency Division Control of Line-of-Sight Tracking for Space Gravitational Wave Detector

Deng

Meng

2022

Sensors

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“…In recent times, lot of progress has been made in the process of detecting gravitational waves using laser interferometer. The Laser Interferometer Space Antenna (LISA) [14] and the Advanced Laser Interferometer Grav-itational Waves Observatory (Advanced LIGO) [15] will provide a major breakthrough in gravitational wave astronomy. The chance to detect gravitational wave including stochastic gravitational wave has increased manyfold using these detectors.…”

Section: Introductionmentioning

confidence: 99%

Prospect of probing dark energy using stochastic gravitational waves

Dinda¹,

Sen²

2015

Preprint

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We study the possibility of probing dark energy behaviour using gravitational wave experiments like LISA and Advanced LIGO. Using two popular parameterizations for dark energy equation of state, we show that with current sensitivities of LISA and Advanced LIGO to detect the stochastic gravitational waves, it is possible to probe a large section of parameter space for the dark energy equation of state which is allowed by present cosmological observations.

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LISA-2020: An Intermediate Scale Space Gravitational Wave Observatory for This Decade

Cited by 2 publications

References 1 publication

Frequency Division Control of Line-of-Sight Tracking for Space Gravitational Wave Detector

Frequency Division Control of Line-of-Sight Tracking for Space Gravitational Wave Detector

Prospect of probing dark energy using stochastic gravitational waves

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