Time reversal cavity path and its influence on signal to noise ratio

Xicheng Lu; Yang Qiu; Ling Jiang; Haibo Wang; Jin Tian; Xinwei Guo

doi:10.11884/HPLPB202133.210171

Journals >High Power Laser and Particle Beams >Volume 33 >Issue 12 >Page 123006 > Article

High Power Laser and Particle Beams
Vol. 33, Issue 12, 123006 (2021)

Time reversal cavity path and its influence on signal to noise ratio

Xicheng Lu¹, Yang Qiu¹, Ling Jiang², Haibo Wang², Jin Tian¹, and Xinwei Guo³

Author Affiliations

¹College of Mechanical and Electrical Engineering, Xidian University, Xi’an 710071, China

²Northwest Institute of Nuclear Technology, Xi’an 710024, China

³Xi'an Sigten Electronic Technology Co., Ltd., Xi’an 710000, China

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DOI: 10.11884/HPLPB202133.210171 Cite this Article

Xicheng Lu, Yang Qiu, Ling Jiang, Haibo Wang, Jin Tian, Xinwei Guo. Time reversal cavity path and its influence on signal to noise ratio[J]. High Power Laser and Particle Beams, 2021, 33(12): 123006 Copy Citation Text

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Fig. 1. [in Chinese]

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Fig. 1. Typical time reversal cavity (TRC) system and its time reversal results

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Fig. 2. [in Chinese]

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Fig. 2. Typical path properties

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Fig. 3. Spectrum distribution of initial，reversal and reconstructed signal

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Fig. 4. The normalized impedance of cavity

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No.	conductivity/（S·m⁻¹）	mean	standard deviation	mainlobe	SNR/dB
1	∞	0.0056	0.0085	0.45	18.3
2	3.56e+7	0.0044	0.0072	0.26	15.9
3	1e+6	0.0037	0.0065	0.23	15.6
4	1e+5	0.0017	0.0039	0.11	14.9

Table 1. Relationship between cavity loss and signal to noise ratio

No.	structure	mean	standard deviation	mainlobe	SNR/dB
1		0.0049	0.0069	0.43	18.4
2		0.0034	0.0055	0.34	17.6
3		0.0016	0.0017	0.174	12.8
4		0.0012	0.0012	0.16	14.1

Table 2. Relationship between cavity structure and signal to noise ratio

No.	size/(mm×mm)	decay time	mean	standard deviation	SNR/dB
1	400×300	1.14	0.0069	0.0136	14.0
2	600×400	1.60	0.0056	0.0085	18.3
3	800×600	2.28	0.0044	0.0058	18.9

Table 3. Relationship between cavity size and signal to noise ratio

Xicheng Lu, Yang Qiu, Ling Jiang, Haibo Wang, Jin Tian, Xinwei Guo. Time reversal cavity path and its influence on signal to noise ratio[J]. High Power Laser and Particle Beams, 2021, 33(12): 123006

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